Plants supply man with food clothing, and shelter-his most important needs. Many of our most useful medicines are also made (1).......plants.In addition,plants add beauty and pleasure to our lives.Mo...

BT

Bùi Thị Ngọc Huyền

8 tháng 3 2018

Plants supply man with food clothing, and shelter-his most important needs. Many of our most useful medicines are also made (1).......plants.In addition,plants add beauty and pleasure to our lives.Most people enjoy the smell of flowers,the sight field of waving grain,and the quiet of a forest.Not (2)..........plants are helpful to man.Some species grow in fields and gardens as weed that choke off useful plants.Tiny hít of pollen from (3).......plants cause such (4)........as asthma and hay...

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#Tiếng anh lớp 10

1

CD

Cầm Đức Anh

8 tháng 3 2018

Plants supply man with food clothing, and shelter-his most important needs.

Many of our most useful medicines are also made (1).......plants.In addition,plants add beauty and pleasure to our lives.Most people enjoy the smell of flowers,the sight field of waving grain,and the quiet of a forest.Not (2)..........plants are helpful to man.Some species grow in fields and gardens as weed that choke off useful plants.Tiny hít of pollen from (3).......plants cause such (4)........as asthma and hay fever.other plants destroy millions of dollars (5)........of crops yearly.

1. A.of B.from C.by D.with

2. A.all B.every C.any D.some

3. A. any B.certain C. most D.all

4. A.accidents B.diseases C.misfortune D.disasters

5. A.worth B.value C.price D.money

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M

Mèocute

22 tháng 6 2021

IV - Read the following passage, then choose the correct answer to questions 26 - 30. (0,2) Plants supply man with food clothing, and shelter- his most important needs. Many of our most useful medicines are also made (26)_________plants. In addition, plants add beauty and pleasure to our lives. Most people enjoy the smell of flowers, the sight field of waving grain, and the quiet of a forest. Not (27)_______plants are helpful to man. Some species grow in fields and gardens as weeds that...

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IV - Read the following passage, then choose the correct answer to questions 26 - 30. (0,2) Plants supply man with food clothing, and shelter- his most important needs. Many of our most useful medicines are also made (26)_________plants. In addition, plants add beauty and pleasure to our lives. Most people enjoy the smell of flowers, the sight field of waving grain, and the quiet of a forest. Not (27)_______plants are helpful to man. Some species grow in fields and gardens as weeds that choke off useful plants. Tiny hits of pollen from (28)_______plants cause such (29)_________as asthma and hay fever. Other plants destroy millions of dollars (30)_______of crops yearly. 26. A. of B. from C. by D. with 27. A. all B. every C. any D. some 28. A. any B. certain C. most D. all 29. A. accidents B. diseases C. misfortune D. disasters 30. A. worth B. value C. price D. money V/ Which notice (A-H) says this (1-5)? Write the correct answer in the blank under each numbered sentence (0.5 point) VI. Read the passage and decide whether the following statements are true or false. Write your answers T (true) or F (false) on your answer sheet. (1.5 pts) Environmental pollution is a term that refers to the way in which man pollutes his surroundings. Man dirties the air with gases and smoke, poisons the water with chemicals and other substances, and damages the soil with too many fertilizers and pesticides. Man also pollutes his surroundings in various other ways. For example, people ruin natural beauty by littering on the land and in the water. They operate machines and motor vehicles that fill the air with disturbing noise. Environmental pollution is one of the most serious problems facing mankind today. Air, water and soil are very necessary to the survival of all living things, but badly-polluted air causes illnesses. Polluted water kills fish and other marine life. Pollution of soil reduces the amount of land for growing food. Environmental pollution also brings ugliness to man’s beautiful natural world. 1. People pollute their surroundings with gases, smoke, and chemicals only. ……….. 2. Too many fertilizers and pesticides can damage the soil. ……….. 3. People operate machines and motor vehicles that can pollute the air with disturbing noise. ……….. 4. Environmental pollution isn’t as important as other problems which man is facing today. ……….. 5. Polluted soil reduces the amount of food. ………..

#Tiếng anh lớp 8

4

DT

Đỗ Thanh Hải

CTVVIP

22 tháng 6 2021

IV - Read the following passage, then choose the correct answer to questions 26 - 30. (0,2) Plants supply man with food clothing, and shelter- his most important needs. Many of our most useful medicines are also made (26)_________plants. In addition, plants add beauty and pleasure to our lives. Most people enjoy the smell of flowers, the sight field of waving grain, and the quiet of a forest. Not (27)_______plants are helpful to man. Some species grow in fields and gardens as weeds that choke off useful plants. Tiny hits of pollen from (28)_______plants cause such (29)_________as asthma and hay fever. Other plants destroy millions of dollars (30)_______of crops yearly.

26. A. of B. from C. by D. with

27. A. all B. every C. any D. some

28. A. any B. certain C. most D. all

29. A. accidents B. diseases C. misfortune D. disasters

30. A. worth B. value C. price D. money

V/ Which notice (A-H) says this (1-5)? Write the correct answer in the blank under each numbered sentence (0.5 point)

VI. Read the passage and decide whether the following statements are true or false. Write your answers T (true) or F (false) on your answer sheet. (1.5 pts) Environmental pollution is a term that refers to the way in which man pollutes his surroundings. Man dirties the air with gases and smoke, poisons the water with chemicals and other substances, and damages the soil with too many fertilizers and pesticides. Man also pollutes his surroundings in various other ways. For example, people ruin natural beauty by littering on the land and in the water. They operate machines and motor vehicles that fill the air with disturbing noise. Environmental pollution is one of the most serious problems facing mankind today. Air, water and soil are very necessary to the survival of all living things, but badly-polluted air causes illnesses. Polluted water kills fish and other marine life. Pollution of soil reduces the amount of land for growing food. Environmental pollution also brings ugliness to man’s beautiful natural world.

1. People pollute their surroundings with gases, smoke, and chemicals only. …F……..

2. Too many fertilizers and pesticides can damage the soil. …T……..

3. People operate machines and motor vehicles that can pollute the air with disturbing noise. ……F…..

4. Environmental pollution isn’t as important as other problems which man is facing today. ……F…..

5. Polluted soil reduces the amount of food. ……T…..

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SB

Sad boy

22 tháng 6 2021

bài 1

IV - Read the following passage, then choose the correct answer to questions 26 - 30. (0,2) Plants supply man with food clothing, and shelter- his most important needs. Many of our most useful medicines are also made (26)__B ___from ____plants. In addition, plants add beauty and pleasure to our lives. Most people enjoy the smell of flowers, the sight field of waving grain, and the quiet of a forest. Not (27)_______plants are helpful to man. Some species grow in fields and gardens as weeds that choke off useful plants. Tiny hits of pollen from (28)_______plants cause such (29)_________as asthma and hay fever. Other plants destroy millions of dollars (30)_______of crops yearly

. 26. A. of B. from C. by D. with

27. A. all B. every C. any D. some

28. A. any B certain C. most D. all

29. A. accidents B. diseases C. misfortune D. disasters

30. B worth B. value C. price D. money

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NL

nguyen linh

20 tháng 2 2020

IV - Read the following passage, then choose the correct answer to questions 26 - 30. (0,2) Plants supply man with food clothing, and shelter- his most important needs. Many of our most useful medicines are also made (26)_________plants. In addition, plants add beauty and pleasure to our lives. Most people enjoy the smell of flowers, the sight field of waving grain, and the quiet of a forest. Not (27)_______plants are helpful to man. Some species grow in fields and gardens as weeds that choke...

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IV - Read the following passage, then choose the correct answer to questions 26 - 30. (0,2)
Plants supply man with food clothing, and shelter- his most important needs.
Many of our most useful medicines are also made (26)_________plants. In addition, plants add
beauty and pleasure to our lives. Most people enjoy the smell of flowers, the sight field of waving grain, and
the quiet of a forest. Not (27)_______plants are helpful to man. Some species grow in fields and gardens as
weeds that choke off useful plants. Tiny hits of pollen from (28)_______plants cause such (29)_________as
asthma and hay fever. Other plants destroy millions of dollars (30)_______of crops yearly.
26. A. of B. from C. by D. with
27. A. all B. every C. any D. some
28. A. any B. certain C. most D. all
29. A. accidents B. diseases C. misfortune D. disasters
30. A. worth B. value C. price D. money
V - Choose one sentence that has the same meaning as the root one. (0,4)
31. “Do you know Long’s address?” he asked me.
A. He asked me for Long’s address. B. He asked me if someone knew Long’s address.
C. He asked me if I know Long’s address. D. He asked me if I knew Long’s address.
32. They are building a new bridge over the river.
A. A new bridge is building over the river. B. A new bridge is being built over the river.
C. A new bridge is going to build over the river. D. A new bridge is built over the river.
33. I used to go to the cinema on Sundays.
A. I usually went to the cinema on Sundays. B. I got used to going the cinema on Sundays.
C. I didn’t go to the cinema on Sundays. D. I usually go to the cinema on Sundays.
34. You feel unhealthy because you don’t take any exercise.
A. If you don’t take any exercise, you will feel unhealthy.
B. If you took more exercise, you would feel healthier.
C. If you take more exercise, you will feel healthier.

8
D. If you were healthier, you would take more exercise.
35. Unless we protect the environment, our life will be badly affected.
A. If we protect the environment, our life will be badly affected.
B. If we don’t protect the environment, our life will be badly affected.
C. If we don’t protect the environment, our life won’t be badly affected.
D. If our life is badly affected, we will protect the environment.

#Tiếng anh lớp 8

1

S

_silverlining

20 tháng 2 2020

IV - Read the following passage, then choose the correct answer to questions 26 - 30. (0,2)
Plants supply man with food clothing, and shelter- his most important needs.
Many of our most useful medicines are also made (26)_________plants. In addition, plants add
beauty and pleasure to our lives. Most people enjoy the smell of flowers, the sight field of waving grain, and
the quiet of a forest. Not (27)_______plants are helpful to man. Some species grow in fields and gardens as
weeds that choke off useful plants. Tiny hits of pollen from (28)_______plants cause such (29)_________as
asthma and hay fever. Other plants destroy millions of dollars (30)_______of crops yearly.
26. A. of B. from C. by D. with
27. A. all B. every C. any D. some
28. A. any B. certain C. most D. all
29. A. accidents B. diseases C. misfortune D. disasters
30. A. worth B. value C. price D. money
V - Choose one sentence that has the same meaning as the root one. (0,4)
31. “Do you know Long’s address?” he asked me.
A. He asked me for Long’s address. B. He asked me if someone knew Long’s address.
C. He asked me if I know Long’s address. D. He asked me if I knew Long’s address.
32. They are building a new bridge over the river.
A. A new bridge is building over the river. B. A new bridge is being built over the river.
C. A new bridge is going to build over the river. D. A new bridge is built over the river.
33. I used to go to the cinema on Sundays.
A. I usually went to the cinema on Sundays. B. I got used to going the cinema on Sundays.
C. I didn’t go to the cinema on Sundays. D. I usually go to the cinema on Sundays.
34. You feel unhealthy because you don’t take any exercise.
A. If you don’t take any exercise, you will feel unhealthy.
B. If you took more exercise, you would feel healthier.
C. If you take more exercise, you will feel healthier.
D. If you were healthier, you would take more exercise.

35. Unless we protect the environment, our life will be badly affected.
A. If we protect the environment, our life will be badly affected.
B. If we don’t protect the environment, our life will be badly affected.
C. If we don’t protect the environment, our life won’t be badly affected.
D. If our life is badly affected, we will protect the environment.

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TT

Triệu Thiên Minh

2 tháng 7 2020

Section III: Choose one of the words below to fill in each blank in the following passage (không đánh số) development / employed / civilization / supplies / oldest / trades / used / plants / increased / medicines / almost / therefore / that / which / By / could Agriculture is the world’s most important industry. It provides us with .................... (1) all our food. It also .................... (2) materials for two other basic human needs – clothing and shelter. In addition,...

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#Tiếng anh lớp 10

1

K

Komorebi

2 tháng 7 2020

Section III: Choose one of the words below to fill in each blank in the following passage (không đánh số)

development / employed / civilization / supplies / oldest / trades / used / plants / increased / medicines / almost / therefore / that / which / By / could

Agriculture is the world’s most important industry. It provides us with almost (1) all our food. It also supplies (2) materials for two other basic human needs – clothing and shelter. In addition, agriculture provides materials used (3) in making many industrial products such as paints and medicines (4). About half the world’s workers are employed (5) in agriculture – far more than in any other industry.

Agriculture is one of the world’s oldest (6) industries. It began about 10,000 years ago in the Middle East . By (7) that time, certain Middle Eastern tribes had discovered how to grow plants (8) from seeds and how to raise animals in captivity. Having mastered these skills, they could (9) begin to practise agriculture.

Before the development (10) of agriculture, people got all their food my gathering wild plants, hunting, and fishing. They had to search for food continually, which (11) left them little time for other activities. But as agriculture developed, and farm output increased (12), fewer people were needed to produce food. The non-farmers could then develop the arts, crafts, trades (13), and other activities of civilized-life. Agriculture therefore (14) not only greatly affected food supply but also made civilization (15) possible.

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NN

Nguyễn Ngân

30 tháng 8 2020

I. Reading comprehension It is very difficult for man to live without the animal's help. Their role in the balance of nature ranks as their most important service to man. Animals also help man by supplying him with many foods and other useful products. Man wouldn't have any meat, milk,eggs or silk,wool,fur,etc...without animals. For thousands of years man has caused changes in the animal kingdom greatly. He has tamed many kinds of animals and used them for food and clothing. He has killed or...

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#Tiếng anh lớp 10

1

LT

Lê Trang

30 tháng 8 2020

I. Reading comprehension

It is very difficult for man to live without the animal's help. Their role in the balance of nature ranks as their most important service to man. Animals also help man by supplying him with many foods and other useful products. Man wouldn't have any meat, milk,eggs or silk,wool,fur,etc...without animals. For thousands of years man has caused changes in the animal kingdom greatly. He has tamed many kinds of animals and used them for food and clothing. He has killed or driven away animals but today he tries to protect animals that are in danger of extinction. Like man , most plants depend on animals for many of their basic needs. Without animals,many plants couldn't easily reproduce. For example, many plants with flowers depend on bees and other insects carry their pollen from plant to plantb or birds often fly from one place to another with see clinging to their feet.

1. Animal are very important to man because....

A. They make the earth really interesting

B. They play a role in the balance of nature

C. Man enjoys looking at them inthe zoos

D. Man likes hunting them for pleasure

2. Animals supply man with.....

A. Foods as meat,milk,eggs,...

B. Materials such as wool, fur or silk

C. Many different kinds of useful products

D. All are correct

3. In the long history for thousands of years....

A. Man and animals have been best friends

B. Man has caused big changes to animal life

C. Animals have affected greatly on man's life

D. Ther hasn't been relation between man and animals

4. In nature,animals.....trees and plants

A. Enjoy eating flowers of

B. Have destroyed many kinds of

C. Also help reproduce

D. Prevent the reproduction of

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NQ

Nguyễn Quốc Hiếu

1 tháng 3 2020

Plans grow(46) almost every part of the world. We see(47) plants as flowers, glass, and tree nearly every day. Plants grow high on moutaintops, far in the oceans, and in many deserts and(48) regions Without plants, there could be not life on earth. Man could not live without air of food and so he could not live without plants. The oxygen in the air we breathe comes from plants. The food we eat also comes from plants or from animals that eat plants. We build houses and make many(49) products...

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#Tiếng anh lớp 9

1

KY

Khinh Yên

2 tháng 3 2020

Plans grow(46)in almost every part of the world. We see(47)such plants as flowers, glass, and tree nearly every day. Plants grow high on moutaintops, far in the oceans, and in many deserts and(48)polar regions

Without plants, there could be not life on earth. Man could not live without air of food and so he could not live without plants. The oxygen in the air we breathe comes from plants. The food we eat also comes from plants or from animals that eat plants. We build houses and make many(49)useful products from lumber cut from trees. (50) Much of our clothing is made from the fitbers of the cotton plants.

Scientists belive there are more than 350,000 species of plants, but no one knowns for(51)sure. Some of the smallest plants, called diatoms, can be seen only with a(52)microscope . A drop of the water may hould as many as 500 diatoms. The largest living things are the giant sequoia trees of California. Some of them stand more than 290 feet high and measure over 30 feet wide

Scientist(53)divide all living things into two main groups - plants and animals. It is usually easy to tell the two(54)apart . Almost all kinds of plants stay in one place, but nearly all species of animals move about under their own power. Most plants make their own food from air, sunglight, and water. Animals cannot make their own food. The basic units of all life, called cells, are also different in plants and animals. Most plants have thick wall that(55) contain a material called cellulost. Animal cells dl not have this material.

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HA

Hồng Anh Đặng

22 tháng 1 2022

có thể g thích tại sao lại điền v k

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DT

Đỗ Thanh Huyền

22 tháng 12 2017

There are 10 blanks in the passage. Use the words (phrases) given in the box to fill in the blanks. Use only one word (phrase) in each blank. There are five extra words (phrases) which you do not need to use. (2 ms) place, easily, alike, bury, carry, contain, imitated, interfered, most, prevent, protect, role, serve, surviving, tamed Man probably could not live without the help of animals. The (1)______ of animals in the balance of nature ranks as their most important service to man. ...

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#Tiếng anh lớp 9

2

CL

Chippy Linh

22 tháng 12 2017

There are 10 blanks in the passage. Use the words (phrases) given in the box to fill in the blanks. Use only one word (phrase) in each blank. There are five extra words (phrases) which you do not need to use. (2 ms)

place, easily, alike, bury, carry, contain, imitated, interfered, most, prevent, protect, role, serve, surviving, tamed

Man probably could not live without the help of animals. The (1)___role___ of animals in the balance of nature ranks as their most important service to man.

Animals also (2)___serve___ man by supplying him with many foods and other useful products. Without animals, man would have no meat, milk, eggs, or honey; or wool, fur, or silk.

For thousands of years, man has caused changes in the animal kingdom. He has (3)___tamed___ many kinds of animals and used them for food and clothing. He has killed or driven away animals that once attacked him or (4)___interfered___ with his use of land. Today, he tried to (5)___protect___ many kinds of animals that are in danger of dying out.

Like man, (6)___most___ plants depend on animals for many of their basic needs. Without animals, many plants could not (7)___easily___ reproduce. For example, many plants with flowers depend on bees and other insects to (8)__carry____ their pollen from plant to plant. Many oak trees grow from acorns that squirrels (9)___burry___ and then forget, or from acorns that deer step on and push deep into the soil. Birds often fly from one (10)___place___ to another with seeds clinging to their feet. The seeds may sprout a great distance from the parent plants.

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HT

Huy Thắng Nguyễn

22 tháng 12 2017

There are 10 blanks in the passage. Use the words (phrases) given in the box to fill in the blanks. Use only one word (phrase) in each blank. There are five extra words (phrases) which you do not need to use. (2 ms)

place, easily, alike, bury, carry, contain, imitated, interfered, most, prevent, protect, role, serve, surviving, tamed

Man probably could not live without the help of animals. The (1)___role___ of animals in the balance of nature ranks as their most important service to man.

Animals also (2)___serve___ man by supplying him with many foods and other useful products. Without animals, man would have no meat, milk, eggs, or honey; or wool, fur, or silk.

For thousands of years, man has caused changes in the animal kingdom. He has (3)___tamed___ many kinds of animals and used them for food and clothing. He has killed or driven away animals that once attacked him or (4)___interfered___ with his use of land. Today, he tried to (5)___protect___ many kinds of animals that are in danger of dying out.

Like man, (6)___most___ plants depend on animals for many of their basic needs. Without animals, many plants could not (7)___easily___ reproduce. For example, many plants with flowers depend on bees and other insects to (8)___carry___ their pollen from plant to plant. Many oak trees grow from acorns that squirrels (9)___bury___ and then forget, or from acorns that deer step on and push deep into the soil. Birds often fly from one (10)___place___ to another with seeds clinging to their feet. The seeds may sprout a great distance from the parent plants.

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LQ

Lê Quỳnh Anh

8 tháng 2 2018

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. PHOTOSYNTHESISAlmost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

PHOTOSYNTHESIS

Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.

In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

Advances in Photosynthesis and Respiration, Hardback.1990.

The phrase “this process” refers to the process of ______.

A. storing chemical energy

B. absorbing solar energy

C. photosynthesis

D. carbon fixation

#Mẫu giáo

1

DH

Dương Hoàn Anh

8 tháng 2 2018

Kiến thức: Đọc hiểu

Giải thích:

Cụm từ “this process” đề cập đến quá trình ______.

A. lưu trữ năng lượng hóa học B. hấp thụ năng lượng mặt trời

C. quang hợp D. cố định carbon

“this process” đề cập đến carbon fixation ở câu trước: Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose.

Tạm dịch: Quang hợp sau đó chuyển đổi carbon từ một chất vô cơ thành dạng hữu cơ. Điều này được gọi là cố định carbon. Trong quá trình này, năng lượng mặt trời được hấp thụ bởi chất diệp lục được lưu trữ dưới dạng năng lượng hóa học dưới dạng đường đơn giản như glucose.

Chọn D

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LQ

Lê Quỳnh Anh

26 tháng 4 2018

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.PHOTOSYNTHESISAlmost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

PHOTOSYNTHESIS

Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.

In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

Advances in Photosynthesis and Respiration, Hardback.1990.

The word “fuel” is similar in meaning to ______.

A. provide nutrients for

B. produce organic materials

C. give fuel to

D. help to function

#Mẫu giáo

1

DH

Dương Hoàn Anh

26 tháng 4 2018

Kiến thức: Đọc hiểu

Giải thích:

Từ "fuel" có nghĩa tương tự như ______.

A. cung cấp chất dinh dưỡng cho B. sản xuất vật liệu hữu cơ

C. cung cấp nhiên liệu cho D. giúp thực hiện chức năng

Từ fuel ở đây mang nghĩa “cung cấp chất dinh dưỡng cho”: Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures.’

Tạm dịch: Vật liệu hữu cơ chứa một lượng năng lượng rất lớn. Là thức ăn, chúng cung cấp dinh dưỡng cho cơ thể chúng ta và của hầu hết các sinh vật khác.

Chọn A

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LQ

Lê Quỳnh Anh

13 tháng 11 2017

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. PHOTOSYNTHESISAlmost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount...

Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

PHOTOSYNTHESIS

Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.

Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.

In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

Advances in Photosynthesis and Respiration, Hardback.1990.

The word “pigments” is closest in meaning to ______.

A. colours

B. chemicals

C. organisms

D. characteristics

#Mẫu giáo

1

DH

Dương Hoàn Anh

13 tháng 11 2017

Kiến thức: Đọc hiểu

Giải thích:

Từ “pigments” có nghĩa gần nhất với ______.

A. màu sắc B. hóa chất C. sinh vật D. đặc điểm

pigments = colours: sắc tố, màu sắc

Chọn A

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