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5 tháng 12 2021

Hỏi 2 acc luôn hả ??

1. 75% / the earth surface / cover / seas and oceans /.
……75 % of the earth surfect is covered by seas and oceans…………………………………………………………………………………………………………………………
2. We / used / think that there / no life / the ocean depths /.
………We used to think that there was no life under the ocean depths………………………………………………………………………………………………………………………
3. All the plants / animals / the ocean / contribute / the biodiversity / the ocean /.
………All the plants and animals under the ocean contribute to the biodiversity of the ocean………………………………………………………………………………………………………………………
4. Scientists / send submarines / devices / investigate / ocean depths /.
……Scientists send submarines and devices to investigate the ocean depths…………………………………………………………………………………………………………………………
5. They investigate / seabed / bring samples / marine life / to the surface / further study /.
………They  the seabed and bring samples of marine life back to the surface for further study. ………………………………………………………………………………………………………………………

5 tháng 12 2021

ụa dãy nhỏ bạn em nó đăng í hihi

 

* Use the given words to make meaningful sentences.1. 75% / the earth surface / cover / seas and oceans /.………………………………………………………………………………………………………………………………2. We / used / think that there / no life / the ocean depths /.………………………………………………………………………………………………………………………………3. All the plants / animals / the ocean /...
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* Use the given words to make meaningful sentences.
1. 75% / the earth surface / cover / seas and oceans /.
………………………………………………………………………………………………………………………………
2. We / used / think that there / no life / the ocean depths /.
………………………………………………………………………………………………………………………………
3. All the plants / animals / the ocean / contribute / the biodiversity / the ocean /.
………………………………………………………………………………………………………………………………
4. Scientists / send submarines / devices / investigate / ocean depths /.
………………………………………………………………………………………………………………………………
5. They investigate / seabed / bring samples / marine life / to the surface / further study /.
………………………………………………………………………………………………………………………………

1
5 tháng 12 2021

1. 75% / the earth surface / cover / seas and oceans /.
……75 % of the earth surfect is covered by seas and oceans…………………………………………………………………………………………………………………………
2. We / used / think that there / no life / the ocean depths /.
………We used to think that there was no life under the ocean depths………………………………………………………………………………………………………………………
3. All the plants / animals / the ocean / contribute / the biodiversity / the ocean /.
………All the plants and animals under the ocean contribute to the biodiversity of the ocean………………………………………………………………………………………………………………………
4. Scientists / send submarines / devices / investigate / ocean depths /.
……Scientists send submarines and devices to investigate the ocean depths…………………………………………………………………………………………………………………………
5. They investigate / seabed / bring samples / marine life / to the surface / further study /.
………They  the seabed and bring samples of marine life back to the surface for further study. ………………………………………………………………………………………………………………………

5 tháng 12 2021

Cảm ơn ạ

14 tháng 9 2016

Identify the one underlined word or phrase - A,B,C or D - that must be changed for the sentence to be correct : 

6. Jack will win the election if he campaigned harder.

 campaigned => campaign

7. We're used to think that there was no life in the oceandepths.

're used to => used to

8. A large portion of the world's water supply have beencontaminated by factory waste, ships and oil spills.

world's => world

9. Were Mr. Morgan still head teacher, he would not permit such bad behave.

behavior

 

10. You can't go into the reception if you've got a ticket.

If => unless

 

14 tháng 9 2016

A,B,C,D tương ứng với mỗi từ mình gạch chân từ trái sang phải nhé. hehe

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 44.Bird migration is one of the most interesting yet least understood natural phenomena. Every fall birds from northern latitudes fly in groups to the warmer southern latitudes and then return north in the spring. Scientists agree on the main reasons for migration: to follow the food supply and to avoid harsh climate conditions. For example,...
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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 44.

Bird migration is one of the most interesting yet least understood natural phenomena. Every fall birds from northern latitudes fly in groups to the warmer southern latitudes and then return north in the spring. Scientists agree on the main reasons for migration: to follow the food supply and to avoid harsh climate conditions. For example, insects disappear during the cold months, prompting insect-dependent birds to fly south to warm areas where insects breed. No similar consensus has emerged, however, about how birds are able to navigate. Despite many recent experiments, bird experts still do not know how birds arrive at the same destinations every year and then find their way back home in the spring.

Some have suggested that birds find their way by following landmarks, such as rivers and mountain ranges. Experiments have confirmed that some species do follow such topographic features. But that method cannot explain how some birds travel at night. Other studies show that some nocturnal birds navigate by the stars. But that explanation cannot explain daytime migration or travel when the skies are cloudy.

The most popular explanation currently is that birds are guided by Earth's magnetic poles. The mechanism by which that works has not yet been proved. One theory points to the fact that some birds' contain magnetite, a naturally occurring magnetic compound consisting of iron oxide. Magnetite has been found in many animals, including birds. With magnets embedded in their brains, birds would be able to sense the magnetic fields of the North and South Poles.

A recent experiment with homing pigeons provided some evidence that magnetite does play a crucial role in migration. Homing pigeons are known to have the ability to return to their homes after being taken hundreds of miles away. Researchers found that they could train homing pigeons to recognize changes in a magnetic field. When a surrounding magnetic field was normal, the birds would gather at one end of a cage. But when the field's polarity was altered, they hopped to the other end, suggesting that they were directing and responding to changes in the magnetic field.

Another theory has been offered to explain this sensitivity to magnetic poles, a theory that draws upon quantum mechanics, which is the study of how particles move inside an atom. It relies on the fact that electrons come in pairs that orbits the nucleus of an atom. The two electrons spin in opposite directions, creating two magnets that neutralize each other. But when molecules split and react with other molecules to form compounds, the electrons pairs may no longer spin in opposite directions. Instead, they may repel each other, as when two north ends of magnets are pressed together. The electrons struggle to change direction in order to achieve a stable state in which the two electrons again neutralize each other, giving off no magnetic field.

Question 35: The word "phenomena" in the passage is closest in meaning to

A. events          B. trends         C. discoveries         D. theories

Question 36: According to paragraph 1, insects influence bird migration in which of the following ways?

A. insects generate a magnetic field that birds can detect

B. Insects provide a food supply that exists only in warm climates

C. Birds follow the paths taken by flying insects

D. birds know when to migrate by a sudden increase in insect population

Question 37: The word "some" in the passage refers to

A. insects         B. recent experiments  C. bird experts       D. birds

Question 38: According to paragraph 3, birds can detect the magnetic fields of the North and South poles because

A. they sense the motion of electron pairs

B. they can locate the poles by following landmarks

C. they ingest metal particles that are attracted by the poles

D. they have magnetite in their brains

Question 39: The word "embedded" in the passage is closest in meaning to

A. implanted        B. attached         C. attracted        D. activated

Question 40: The author discusses "homing pigeons" in paragraph 4 in order to

A. provide an example of how humans can train birds

B. describe an experiment showing the importance of magnetite

C. show that homing pigeons return home by following landmarks

D. report homing pigeons' behavior inside a cage

Question 41: According to the passage, all of the following are theories about how birds navigate EXCEPT:

A. They follow landmarks like rivers and mountains

B. They are guided by their position relative to the stars

C. They feel vibrations in nerve endings in their brains

D. They respond to changes in light

Question 42: According to paragraph 4, the pigeons moved to the opposite end of a cage because

A. The magnetic field was normal

B. The magnetic field was stronger at one end

C. The magnetic field changed its polarity

D. The magnetic field was removed

Question 43: The word "altered" in the passage is closest in meaning to

A. reversed        B. cancelled        C. strengthened         D. detected

Question 44: Which of the following can be inferred about an electron pair in two north ends of magnets?

A. The two electrons spin in opposite directions

B. One electron will move to the south end

C. One electron will be captured by the nucleus

D. The two electrons spin in the same direction

1
24 tháng 7 2019

1B

2B

3C

4C

5A

6D

7B

8A

9C

10D

T.I.C.K GIÚP MK NHÉ!

Recycle waste paper and you will save natural resources If___________________“ I would go on a diet if I were you” the doctor told Bob The doctor advised___________Working in a large office is a new expensive to me I’m not used_____________We hope to hear another lecture by Professor Brown in the near future We look_______________Many readers were impressed by his new novel His new novel made a_________The film star wore dark glasses so that no one could recognize him The film star...
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Recycle waste paper and you will save natural resources If___________________

“ I would go on a diet if I were you” the doctor told Bob The doctor advised___________

Working in a large office is a new expensive to me I’m not used_____________

We hope to hear another lecture by Professor Brown in the near future We look_______________

Many readers were impressed by his new novel His new novel made a_________

The film star wore dark glasses so that no one could recognize him The film star avoided__________

We should not throw garbage out on the street,should we? Garbage_______________

You needn’t change your address
It is ______________

Nam is the best student in my class Nobody else_____________

Her uncle is proud of being a famous conservationist Her uncle takes_______________

Everybody likes her because she behaves very well
Because of _________

Lan and Mai stopped going out with each other three years ago
Lan hasn’t ____________

 

Don’t throw the appliance away with the normal _______ wastes at the end of its life (house)

The more they got to know each other,the more their ______ grew (friend)

3
16 tháng 1 2019

Recycle waste paper and you will save natural resources

If__________you Recycle waste paper , you will save natural resources_________

“ I would go on a diet if I were you” the doctor told Bob

The doctor advised_____Bob to go on a diet______

Working in a large office is a new expensive to me

I’m not used__________Working in a large office ___

17 tháng 1 2019

ai giải giúp tui giải nhanh đi

11 tháng 11 2017

Scientists would like to place a giant mirror in space above the earth. It might be sixty mile....away.... It would be use to......focus......the rays of the sun. It would .......focus.......the sun's rays upon the earth as you might ......used....... with a magnifying glass. why do they want to do this ? The sun's rays could be used in.....different....ưays. They could ......burn......up cities by night. The warm rays could frost that might come night and ...damage.....fruit crops. The rays could ......melt.....dangerous iceberges in the ocean. Perhaps they could change cloud and bring rain where it is needed

Read the below passage on Mars and use the information to write a composition about the possibility of life on the planet . There has long been speculation concerning about the possibility of life and liquid water on Mars . However , the planet's thin atmosphere prevents water from accumulating for any time over significant portions of the planet . Some evidences of the planet's surface suggest the presence of liquid water at some point in history , but scientists think this water would be too...
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Read the below passage on Mars and use the information to write a composition about the possibility of life on the planet .

There has long been speculation concerning about the possibility of life and liquid water on Mars . However , the planet's thin atmosphere prevents water from accumulating for any time over significant portions of the planet . Some evidences of the planet's surface suggest the presence of liquid water at some point in history , but scientists think this water would be too salty or acidic to support life as we know it . Futhermore , fierce solar winds and poor heat transfer across its surface would make sustained life virtually impossible . There is compelling evidence , however , that Mars was once much more habitable to life than it is today .

Start with :

I think that there is no life on Mars . Firstly .......

HELP ME !!!!!!!! MÌNH ĐANG CẦN GẤP LẮM !!!!!!

0
30 tháng 10 2016
  1. on
  2. cover
  3. the
  4. in
  5. moving
  6. for
  7. have
  8. describle
  9. is
  10. and

Good luck !!! ♥

30 tháng 10 2016

Thanks

 

25 tháng 4 2019

1. erupting

2. called

3. escape

4.coast

5.reaching

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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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 from lumber cut from trees. (50) 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). Some of the smallest plants, called diatoms, can be seen only with a(52). 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) all living things into two main groups - plants and animals. It is usually easy to tell the two(54). 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) a material called cellulost. Animal cells dl not have this material.

Ae giúp mjk nhanh với

1
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.

22 tháng 1 2022

có thể g thích tại sao lại điền v k