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Different kinds of animals have appeared and disappeared throughout Earth’s history. Some animals go extinct because the climate (1)…………changes. The climate may become wetter or drier. It may become warmer or cooler. If the animals cannot change, or adapt, to the new climate, they die.      Some animals go extinct because they cannot (2)……………… with other animals for food. Some animals go extinct because they are killed by enemies. New kinds of animals are always...
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Different kinds of animals have appeared and disappeared throughout Earth’s history. Some animals go extinct because the climate (1)…………changes. The climate may become wetter or drier. It may become warmer or cooler. If the animals cannot change, or adapt, to the new climate, they die.

      Some animals go extinct because they cannot (2)……………… with other animals for food. Some animals go extinct because they are killed by enemies. New kinds of animals are always evolving. Evolving means that the animals are changing (3)…………… from generation. Small differences between parents, children, and grandchildren slowly add up oer many, many generations. Eventually, a different kind of animals evolves.

      Sometimes many of the animals on earth go extinct at the(4)……………time. Scientists call this a mass extinction. Scientists think there have been (5)……………… five mass extinctions in earth’s history. The last mass extinction happened about 65 million years ago. This mass extinction killed off the dinosaurs.

1.A. where

B. which

C. when

D. what

2. A. complete

B. find

C. complete

D. exist

3. A. accidentally

B. suddenly

C. quickly

D. slowly

4. A. same

B. similar

C. different

D. various

5. A. the

B. at least

C. more

D. even

1
25 tháng 11 2021

1, A

2, C

3, D

4, A

5, B

I. Rewrite the sentences in the passive voice form. 1. People will use cloth bags in the future. __________________________________________________________________________ 2. My cousin will meet you at the station. __________________________________________________________________________ 3. They will hold the meeting before May Day. __________________________________________________________________________ 4. Will you invite her to your wedding party?...
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I. Rewrite the sentences in the passive voice form.
1. People will use cloth bags in the future. __________________________________________________________________________
2. My cousin will meet you at the station. __________________________________________________________________________
3. They will hold the meeting before May Day. __________________________________________________________________________
4. Will you invite her to your wedding party? __________________________________________________________________________
5. We might find life on another planet. __________________________________________________________________________
6. We have to improve all the schools in the city. __________________________________________________________________________
7. You must do this exercise carefully. __________________________________________________________________________
8. We can solve the problem. __________________________________________________________________________
9. People should stop experiments on animals. __________________________________________________________________________
10. Nam will buy a new shirt
. _____________________________________________________

1
12 tháng 2 2020

I. Rewrite the sentences in the passive voice form.
1. People will use cloth bags in the future. _

_Cloth bags will be used in the future ________________________________________________________________________
2. My cousin will meet you at the station.

You will be met by my cousin at the station __________________________________________________________________________
3. They will hold the meeting before May Day.

____the meeting will be held before May Day______________________________________________________________________
4. Will you invite her to your wedding party?

____Will she be invited to your wedding party?______________________________________________________________________
5. We might find life on another planet. _

_____life might be found on another planet ____________________________________________________________________
6. We have to improve all the schools in the city.

_____All the schools have to be improved in the city _____________________________________________________________________
7. You must do this exercise carefully.

_____This exercise must be done carefully _____________________________________________________________________
8. We can solve the problem.

_______The problem can be solved ___________________________________________________________________
9. People should stop experiments on animals. _

Experiments on animal should be stopped _________________________________________________________________________
10. Nam will buy a new shirt
. ______A new shirt will be bought by Nam_______________________________________________

18 tháng 3 2022

câu 1 có in the future ak bạn nên chia lại

14 tháng 8 2017

Đáp án: C

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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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

1
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

12. They are those that live on or depend on the bottom like the starfish, those that move ________ of water currents and those that are carried along by the currents. A. independence​B. independent​C. independently​D. dependent 13. Some marine animals are _________ to humans. A. danger​​B. dangerous​​C. endangered​​D. dangerously 14. You may be surprised at the large ----------- of animals that live in the sea. A. variety ​B. variously ​ ...
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12. They are those that live on or depend on the bottom like the starfish, those that move ________ of water currents and those that are carried along by the currents.

A. independence​B. independent​C. independently​D. dependent

13. Some marine animals are _________ to humans.

A. danger​​B. dangerous​​C. endangered​​D. dangerously

14. You may be surprised at the large ----------- of animals that live in the sea.

A. variety ​B. variously ​ ​C. various D. vary

15. Community police have made a very positive ______ to crime prevention.

A. contribute​​B. contributive​​C. contribution​D. contributively

16. They are investigating the ______ disappearance of a young woman.

A. mystery​​B. mysterious​​C. mysteriously​D. mysteries

17. By the age of eighteen he was completely ______ of his parents.

A. dependence​​B. dependently​C. dependent​​D. depend​

18. The ______ of the seabed is being carried out.

A. investigate​B. investigative​C. investigation​D. investigating

19.For centuries, people have been challenged by the ___________ that lie beneath the ocean.

A. mystery​​B. mysterious​​C. mysteriously​D. mysteries

20.Dolphin population is at stake due to the _______of their habitats and accidental entrapment in fishing nets.

A. pollute​​B. pollutive​​C. pollution​​D. pollutants​

21. Nairobi National Park is Kenya’s smallest park, but you may be surprised at the large ______ of animals that live there.

A. vary​B. variety​C. various​D. variously

22. Visitors, especially children, can go to Cuc Phuong National Park to learn how to recognize the ---------species of animals and plants.

A. differ​​B. difference​​C. different​D. differently

23. This national park is _____ because it has plants and animals from both tropical and temperate zones.

A. specially B. special B. specialize D. specialization

24. The giant panda is in danger of becoming extinct. It is an -------species.

A. dangerous​​B. dangerously C. endanger ​D. endangered

25. Trees, grasses, and other plant life play an important part in the _______ circulation of water.

A. natural ​​B. nature​​C. naturally​​D. naturalize

26. Without plants, most water would run off as soon as it falls, taking away ______ soil.

A. value​​B. valuable​​C. valuably​​D. values

27. The earth is being threatened and the future looks _______.

A. bad​​​B. badly​​​C. badness​​D. worsen

28. Man is _______ doing harm to the environment.

A. constancy​​B. constant​​C. constantly​​D. constants​

29. A campfire near a heap of leaves may _____ cause a forest fire.

A. ease​​​B. easy​​​C. easily​​D. eases

30. A gulf is a term that refers to the ________ of different kinds of animals and plants which make a balanced environment.

A. exist​​​B. existence​​C. existent​D. existed

0
1. Read the text. Match the highlighted words with their meanings.(Đọc văn bản. Nối các từ được đánh dấu với nghĩa của chúng.)There are two types of community service. The first one is a kind of punishment. For example, people who litter may be forced to clean up the streets. In this case, they may not feel happy about the work. The second type of community service is voluntary. This means people are willing, or pleased to do the work. For instance, people may...
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1. Read the text. Match the highlighted words with their meanings.

(Đọc văn bản. Nối các từ được đánh dấu với nghĩa của chúng.)

There are two types of community service. The first one is a kind of punishment. For example, people who litter may be forced to clean up the streets. In this case, they may not feel happy about the work. The second type of community service is voluntary. This means people are willing, or pleased to do the work. For instance, people may volunteer to build houses for poor people, or raise money for children in mountainous areas.

However, it does not mean that volunteering is always a selfless act because volunteers may also benefit from the volunteering activities. For example, they may volunteer to meet new people, to develop social skills, or to find themselves' (learn what they truly want in life). In general, people may volunteer not just to help others, but also to help themselves.

Words

Meanings

1. voluntary

a. caring more about other people

2. willing

b. ready to do something

3. selfless

c. done without being forced to do it

1
14 tháng 8 2023

1 - c

2 - b

3 - a

Read the passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well,...
Đọc tiếp

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

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. People of different cultures are more prone to contract certain illnesses because of the characteristic foods they consume.

That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates and nitrites (commonly used to preserve color in meat) as well as other food additives caused cancer. Yet, these carcinogenic additivesremain in our food, and it becomes more difficult all the time to know which ingredients on the packaging labels of processed food are helpful or harmful.

The additives that we eat are not all so direct. Farmers often give penicillin to cattle and poultry, and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are administered to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.

A healthy diet is directly related to good health. Often we are unaware of detrimental substances we ingest. Sometimes well-meaning farmers or others who do not realize the consequences add these substances to food without our knowledge.

46. The word “fit” is closest in meaning to __________.

A. athletic B. adaptable C. suitable D. tasty

47. The word “prone” is closest in meaning to __________.

A. supine B. unlikely C. healthy D. predisposed

48. The word “these” refers to_____________.

A. researchers B. nitrates and nitrites C. meats D. colors

49. What are nitrates used for?

A. They preserve flavor in packaged foods B. They cause the animals to become fatter

C. They are the objects of research D. They preserve the colour of meat

50. All of the following statements are TRUE EXCEPT __________.

A. Researchers have known about the potential hazards of food additives for more than forty-five years.

B. Drugs are always given to animals for medical reasons

C. Food may cause forty percent of the cancer in the world.

D. Some of the additives in our food are added to the food itself and some are given to the living animals.

1
21 tháng 2 2020

46. The word “fit” is closest in meaning to __________.

A. athletic

B. adaptable

C. suitable

D. tasty

47. The word “prone” is closest in meaning to __________.

A. supine

B. unlikely

C. healthy

D. predisposed

48. The word “these” refers to_____________.

A. researchers

B. nitrates and nitrites

C. meats

D. colors

49. What are nitrates used for?

A. They preserve flavor in packaged foods

B. They cause the animals to become fatter

C. They are the objects of research

D. They preserve the colour of meat

50. All of the following statements are TRUE EXCEPT __________.

A. Researchers have known about the potential hazards of food additives for more than forty-five years.

B. Drugs are always given to animals for medical reasons

C. Food may cause forty percent of the cancer in the world.

D. Some of the additives in our food are added to the food itself and some are given to the living animals.

21 tháng 2 2020

yeu

Read the passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well,...
Đọc tiếp

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

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. People of different cultures are more prone to contract certain illnesses because of the characteristic foods they consume.

That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates and nitrites (commonly used to preserve color in meat) as well as other food additives caused cancer. Yet, these carcinogenic additivesremain in our food, and it becomes more difficult all the time to know which ingredients on the packaging labels of processed food are helpful or harmful.

The additives that we eat are not all so direct. Farmers often give penicillin to cattle and poultry, and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are administered to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.

A healthy diet is directly related to good health. Often we are unaware of detrimental substances we ingest. Sometimes well-meaning farmers or others who do not realize the consequences add these substances to food without our knowledge.

46. The word “fit” is closest in meaning to __________.

A. athletic B. adaptable C. suitable D. tasty

47. The word “prone” is closest in meaning to __________.

A. supine B. unlikely C. healthy D. predisposed

48. The word “these” refers to_____________.

A. researchers B. nitrates and nitrites C. meats D. colors

49. What are nitrates used for?

A. They preserve flavor in packaged foods B. They cause the animals to become fatter

C. They are the objects of research D. They preserve the colour of meat

50. All of the following statements are TRUE EXCEPT __________.

A. Researchers have known about the potential hazards of food additives for more than forty-five years.

B. Drugs are always given to animals for medical reasons

C. Food may cause forty percent of the cancer in the world.

D. Some of the additives in our food are added to the food itself and some are given to the living animals.

0