K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

11 tháng 4 2016

->The water is warm enough for me to drink it(sai)
->The water is warm enough for me to drink(đúng)
Good luck!!!!!!!!

 

28 tháng 11 2017

câu đầu sai câu thứ hai đúng

bn có hiểu kololang

17 tháng 2 2017

Kiến thức: Từ loại

Giải thích:

pollution (n): sự ô nhiễm                                                                   pollutant (n): chất gây ô nhiễm

polluted (a): bị ô nhiễm                                   polluting (V-ing): làm cho ô nhiễm

Sau động từ “is” cần tính từ hoặc P2

Tạm dịch: Nước bị ô nhiễm bạn không thể uống nó.

Chọn C

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for he pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds (3) _______. Polluting the air, soil, and water can harm ecosystems. Building (4) _______ on rivers for electric power and irrigation can harm ecosystems around the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of (5) _______ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.

Điền vào ô 2.

A. little

B. a little

C. few

D. a few

1
7 tháng 2 2018

Đáp án A.

Tạm dịch: … If there is too (2) _______ rainfall, plants will not have enough water to live: Nếu lượng mưa quá _______, thực vật sẽ không có đủ nước để duy trì sự sống.

A. little: ít, hầu như không đủ (dùng với danh từ không đếm được, mang nét nghĩa phủ định)

B. a little: ít nhưng đủ dùng (dùng với danh từ đếm được, mang nét nghĩa khẳng định)

C. a few: ít, hầu như không đủ (dùng với danh từ đếm được, mang nét nghĩa phủ định)

D. a few: ít nhưng đủ dùng (dùng với danh từ đếm được, mang nét nghĩa khẳng định)

Vì có “too” và danh từ “rainfall”: lượng mưa không đếm được → Đáp án đúng là A. little.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for he pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds (3) _______. Polluting the air, soil, and water can harm ecosystems. Building (4) _______ on rivers for electric power and irrigation can harm ecosystems around the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of (5) _______ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.

Điền vào ô 3.

A. out

B. in

C. go 

D. fly

1
3 tháng 11 2018

Đáp án A.

Tạm dịch: … Heat from a forest fire melts the seal and lets the seeds (5) _______: Sức nong từ cháy rừng sẽ làm tan chảy các mối bít và thả các hạt _______.

Một cách logic, khi có sức nóng khiến các mối bít tan chảy thì các hạt bị tắc ở trong trước đó sẽ có thể rơi ra ngoài. Mỗi bít không còn để các hạt ở trong không hợp lý, loại đáp án B. Loại C và D vì các hạt không thể đi và bay. Để các hạt ra ngoài là đáp án phù hợp nhất. Do đó đáp án đúng là A. out.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for he pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds (3) _______. Polluting the air, soil, and water can harm ecosystems. Building (4) _______ on rivers for electric power and irrigation can harm ecosystems around the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of (5) _______ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.

Điền vào ô 4

A. moats 

B. ditches

C. bridges

D. dams

1
7 tháng 9 2019

Đáp án D.

Tạm dịch: Building (4) _______ on rivers for electric power and irigation can hảm ecosystems around the rivers: Xây _______ trên sông làm thủy điện và tưới tiêu cũng gây hại tới hệ sinh thái xung quanh dòng sông.

A. moats: hào (xung quanh thành trì)

B. ditches: (hào, rãnh, mương)

C. bridges: cầu

D. dams: đập

Xây đập trên sông để làm thủy điện và phục vụ tưới tiêu do đó đáp án đúng là D. dams.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for he pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds (3) _______. Polluting the air, soil, and water can harm ecosystems. Building (4) _______ on rivers for electric power and irrigation can harm ecosystems around the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of (5) _______ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.

Điền vào ô 5.

A. catching

B. holding

C. carrying

D. taking

1
2 tháng 10 2018

Đáp án A.

Tạm dịch: … Ecologists are working with companies and governments to find better ways of (5) _______ fish, cutting down trees, and building dams: Các nhà sinh thái học đang hợp tác cùng các doanh nghiệp và chính phủ để tìm ra phương thức hiệu quả hơn _______ cá, chặt rừng và xây đập.

A. catching: đánh bắt, tóm

B. holding: cầm, giữ

C. carrying: mang, vác

D. taking: lấy

Đánh bắt cá chung ta sử dụng “To catch fish”. Các đáp án khác không hợp nghĩa.

Vậy đáp án đúng là A.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes (1) _______ ecosystems. If there is too (2) _______ rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals that feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for he pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds (3) _______. Polluting the air, soil, and water can harm ecosystems. Building (4) _______ on rivers for electric power and irrigation can harm ecosystems around the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of (5) _______ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.

Điền vào ô 1.

A. harms

B. harmful

C. harmless

D. harm

1
24 tháng 10 2018

Đáp án D.

Tạm dịch: … Some changes (1) _______ ecosystems: Một số thay đổi _______ tới các hệ sinh thái.

A. harms (v): gây hại

B. harmful (adj): có hại

C. harmless (adj): vô hại

D. harm (v): gây hại

Chỗ trống còn thiếu động từ, loại đáp án B và C. Chủ ngữ “some changes” là số nhiều, loại đáp án A.

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 questions from 35 to 42.Life in the UniverseExobiology is the study of life that originates from outside of Earth. As yet, of course, no such life forms have been found. Exobiologists, however, have done important work in the theoretical study of where life is most likely to evolve, and what those extrateưestrial life forms might be like.What sorts of planets are most...
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 questions from 35 to 42.

Life in the Universe

Exobiology is the study of life that originates from outside of Earth. As yet, of course, no such life forms have been found. Exobiologists, however, have done important work in the theoretical study of where life is most likely to evolve, and what those extrateưestrial life forms might be like.

What sorts of planets are most likely to develop life? Most scientists agree that a habitable planet must be terrestrial, or rock-based, with liquid surface water and biogeochemical cycles that somewhat resemble Earth’s. Water is an important solvent involved in many biological processes. Biogeochemical cycles are the continuous movement and transformation of materials in the environment. These cycles include the circulation of elements and nutrients upon which life and the Earth’s climate depend. Since (as far as we know) all life is carbon-based, a stable carbon cycle is especially important.

The habitable zone is the region around a star in which planets can develop life. Assuming the need for liquid surface water, it follows that most stars around the size of our sun will be able to sustain habitable zones for billions of years. Stars that are larger than the sun are much hotter and bum out more quickly; life there may not have enough time to evolve. Stars that are smaller than the sun have different problem. First of all, planets in their habitable zones will be so close to the star that they will be “tidally locked” – that is one side of the planet will always face the star in perpetual daylight with the other side in the perpetual night. Another possible obstacle to life on smaller stars is that they tend to vary in their luminosity, or brightness, due to flares and “star spots”. The variation can be large enough to have harmful effects on the ecosystem.

Of course, not all stars of the right size will give rise to life; they also must have terrestrial planets with the right kind of orbits. Most solar systems have more than one planet, which influence each other’s orbits with their own gravity. Therefore, in order to have a stable system with no planets flying out into space, the orbits must be a good distance from one another. Interestingly, the amount of space needed is roughly the width of a star’s habitable zone. This means that for life to evolve, the largest possible number of life-supporting planets in any star’s habitable zone is two.

Finally, not all planets meeting the above conditions will necessarily develop life. One major threat is large, frequent asteroid and comet impacts, which will wipe out life each time it tries to evolve. The case of Earth teaches that having large gas giants, such as Saturn and Jupiter,.in the outer part of the solar system can help keep a planet safe for life. Due to their strong gravitation, they tend to catch or deflect large objects before they can reach Earth.

It can be inferred from paragraph 3 that

A. the Earth is in the sun’s habitable zone   

B. the Earth is tidally locked to the sun

C. the sun varies in its luminosity 

D. variations in luminosity help life to develop

1
11 tháng 2 2017

Đáp án A

Kiến thức: Đọc hiểu

Giải thích: 

Có thể suy luận từ đoạn 3 rằng

A. Trái đất nằm trong vùng có sự sống của mặt trời.

B. Trái đất bị khóa chặt vào mặt trời

C. Mặt trời thay đổi theo độ sáng

D. Sự biến đổi ánh sáng giúp cuộc sống phát triển.

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 questions from 35 to 42.Life in the UniverseExobiology is the study of life that originates from outside of Earth. As yet, of course, no such life forms have been found. Exobiologists, however, have done important work in the theoretical study of where life is most likely to evolve, and what those extrateưestrial life forms might be like.What sorts of planets are most...
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 questions from 35 to 42.

Life in the Universe

Exobiology is the study of life that originates from outside of Earth. As yet, of course, no such life forms have been found. Exobiologists, however, have done important work in the theoretical study of where life is most likely to evolve, and what those extrateưestrial life forms might be like.

What sorts of planets are most likely to develop life? Most scientists agree that a habitable planet must be terrestrial, or rock-based, with liquid surface water and biogeochemical cycles that somewhat resemble Earth’s. Water is an important solvent involved in many biological processes. Biogeochemical cycles are the continuous movement and transformation of materials in the environment. These cycles include the circulation of elements and nutrients upon which life and the Earth’s climate depend. Since (as far as we know) all life is carbon-based, a stable carbon cycle is especially important.

The habitable zone is the region around a star in which planets can develop life. Assuming the need for liquid surface water, it follows that most stars around the size of our sun will be able to sustain habitable zones for billions of years. Stars that are larger than the sun are much hotter and bum out more quickly; life there may not have enough time to evolve. Stars that are smaller than the sun have different problem. First of all, planets in their habitable zones will be so close to the star that they will be “tidally locked” – that is one side of the planet will always face the star in perpetual daylight with the other side in the perpetual night. Another possible obstacle to life on smaller stars is that they tend to vary in their luminosity, or brightness, due to flares and “star spots”. The variation can be large enough to have harmful effects on the ecosystem.

Of course, not all stars of the right size will give rise to life; they also must have terrestrial planets with the right kind of orbits. Most solar systems have more than one planet, which influence each other’s orbits with their own gravity. Therefore, in order to have a stable system with no planets flying out into space, the orbits must be a good distance from one another. Interestingly, the amount of space needed is roughly the width of a star’s habitable zone. This means that for life to evolve, the largest possible number of life-supporting planets in any star’s habitable zone is two.

Finally, not all planets meeting the above conditions will necessarily develop life. One major threat is large, frequent asteroid and comet impacts, which will wipe out life each time it tries to evolve. The case of Earth teaches that having large gas giants, such as Saturn and Jupiter,.in the outer part of the solar system can help keep a planet safe for life. Due to their strong gravitation, they tend to catch or deflect large objects before they can reach Earth.

It can be inferred from paragraph 4 that

A. most stars have more than two planets in their habitable zones

B. no star has more than two planets in its habitable zone

C. it is not possible for a star to have three planets with life on them

D. for life to develop, a star must have at least two planets in its habitable zone

1
17 tháng 11 2019

Đáp án C

Kiến thức: Đọc hiểu

Giải thích:

Có thể rút ra từ đoạn 4 rằng…

A. hầu hết các ngôi sao có nhiều hơn 2 hành tinh trong khu vực có thể sống của họ

B. không có ngôi sao nào có nhiều hơn 2 hành tinh trong khu vực có thể sống của nó

C. không có khả năng cho 1 ngôi sao có 3 hành tinh cùng chúng.

D. để sự sống phát triển, một ngôi sao phải có ít nhất 2 hành tinh trong khu vực có thể sống của nó

Thông tin: This means that for life to evolve, the largest possible number of life­supporting planets in any star’s habitable zone is two.

Tạm dịch: Điều này có nghĩa là để sự sống phát triển, số lượng lớn nhất để hỗ trợ các hành tinh trong khu vực có thể sống của một ngôi sao là 2.

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 questions from 33 to 40.Early peoples had no need of engineering works to supply their water. Hunters and nomads camped near natural sources of fresh water, and populations were so sparse that pollution of the water supply was not a serious problem. After community life developed and agricultural villages became urban centers, the problem of supplying water became...
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 questions from 33 to 40.

Early peoples had no need of engineering works to supply their water. Hunters and nomads camped near natural sources of fresh water, and populations were so sparse that pollution of the water supply was not a serious problem. After community life developed and agricultural villages became urban centers, the problem of supplying water became important for inhabitants of a city, as well as for irrigation of the farms surrounding the city. Irrigation works were known in prehistoric times, and before 2000 BC the rulers of Babylonia and Egypt constructed systems of dams and canals to impound the flood waters of the Euphrates and Nile rivers, controlling floods and providing irrigation water throughout the dry season. Such irrigation canals also supplied water for domestic purposes. The first people to consider the sanitation of their water supply were the ancient Romans, who constructed a vast system of aqueducts to bring the clean waters of the Apennine Mountains into the city and built basins and filters along these mains to ensure the clarity of the water. The construction of such extensive water-supply systems declined when the Roman Empire disintegrated, and for several centuries local springs and wells formed the main source of domestic and industrial water.

The invention of the force pump in England in the middle of the 16th century greatly extended the possibilities of development of water-supply systems. In London, the first pumping waterworks was completed in 1562; it pumped river water to a reservoir about 37 m above the level of the River Thames and from the reservoir the water was distributed by gravity, through lead pipes, to buildings in the vicinity. Increased per-capita demand has coincided with water shortages in many countries. Southeast England, for example, receives only 14 per cent of Britain's rainfall, has30 per cent of its population, and has experienced declining winter rainfall since the 1980s.

In recent years a great deal of interest has been shown in the conversion of seawater to fresh water to provide drinking water for very dry areas, such as the Middle East. Several different processes, including distillation, electrodialysis, reverse osmosis, and direct-freeze evaporation, have been developed for this purpose. Some of these processes have been used in large facilities in the United States. Although these processes are successful, the cost of treating seawater is much higher than that for treating fresh water.

From A. Briggs’ article on culture, Microsoft® Student 200

The word “disintegrated” in paragraph 1 is closet in meaning to ______.

A. emerged

B. failed

C. distorted 

D. thrived

1
4 tháng 6 2019

B

Kiến thức: Đọc hiểu

Giải thích:

disintergrate (v): sụp đổ

emerge (v): xuất hiện                                       fail (v): thất bại

distort (v): thay đổi hình dáng                         thrive (v): phát triển mạnh

=> disintergrated = failed

Thông tin: The construction of such extensive water-supply systems declined when the Roman Empire disintegrated, and for several centuries local springs and wells formed the main source of domestic and industrial water.

Tạm dịch: Việc xây dựng các hệ thống cung cấp nước rộng lớn như vậy đã suy tàn khi mà Đế chế La Mã sụp đổ, và trong nhiều thế kỷ, nguồn nước chủ yếu là được lấy từ các suối và giếng để phục vụ mục đích dân sinh và công nghiệp.

Chọn B