A: we to the zoo? B: No. finish our homework first. [ ] A. Do ... go ... We B. Shall ... go ... Let's C. Are ... go ... Let's D. Let ... go ... Let's 题目和参考答案——青夏教育精英家教网—

题目内容

A: ______ we ______ to the zoo?

B: No. ______ finish our homework first.

[ ]

　　A. Do ... go ... We　　 B. Shall ... go ... Let's

　　C. Are ... go ... Let's D. Let ... go ... Let's

答案：B

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Imagine you are an astronaut, you find a new planet that looks like the earth, and when you want to put the flag on it, you find out that this planet has already got population. What would you do?
The US astronaut, Charles “Chuck” Backer, in the new cartoon film Planet 51 just comes across this thing.
Planet 51 is a place where there is no human being. So Chuck arrives in the planet and wants to name it “the US”. But he suddenly finds himself surrounded by lots of little green aliens.
These aliens live in fear that they may be invaded by strange being. They have never seen an alien until Chuck arrives. They think it is terrible and they get ready to defend themselves or attack Chuck. They send him to the Planet 51 Alien Invaders Space Museum. Chuck is very scared and tries to escape. The only thing he can do is to make his spaceship work and fly back to the earth. Luckily, he makes friends with a young alien named Lem. Then the adventure begins.
Planet 51 is a science fiction movie. It tells us that whether we are on the earth or in another society with aliens, we should accept the things that are different in our lives and experience them actively. In this way, we can grow up and understand ourselves better by changing.
The film is very funny and full of happiness. Will Chuck return home? If you want to know, see it!
【小题1】根据The US astronaut, Charles “Chuck” Backer, in the new cartoon film Planet 51 just comes across this thing.描述，可知选A。
【小题2】根据They have never seen an alien until Chuck arrives. They think it is terrible （可怕的）and they get ready to defend themselves or attack Chuck.可知选B。
【小题3】根据they get ready to defend themselves or attack Chuck.可知是保护自己的意思，故选C。
【小题4】根据The only thing he can do is to make his spaceship work and fly back to the earth.描述，可知选B。
【小题5】根据It tells us that whether we are on the earth or in another society with aliens, we should accept the things that are different in our lives and experience them actively. In this way, we can grow up and understand ourselves better by changing.描述，可知选B。
【小题6】Charles “Chuck” Backer is a ___________.
A. US astronaut     B. green alien          C. US scientist
【小题7】When the green aliens see Charles “Chuck” Backer, they feel ___________。
A. excited          B. scared               C. sad
【小题8】What does the word “defend” mean in this passage?
A. 侵略             B. 隐藏             C.保护
【小题9】How can Chuck get out of the bad situation?
A. He must make friends with aliens there.
B. He must make the spaceship work and return to the earth.
C. He must destroy the Planet 51 Alien Invaders Space Museum.
【小题10】 What can we learn from the movie?
A. We shouldn’t explore or invade other planets.
B. We should learn to accept new things in order to improve ourselves.
C. We should experience more on the earth in order to be an astronaut.

Why should we learn to swim?
Firstly, swimming is a good exercise for our health. Indeed doctors say it is the best exercise, because in swimming all the muscles of the body are used.
Secondly, swimming gives great pleasure. How nice it is, on a hot dusty day in summer, to take off one’s clothes and dive into the cool water of a rive or the sea, and to swim and float until one feels enough.
Thirdly, swimming may sometimes mean all the different between life and death, we never know when we may be in danger from water. We got on a voyage, and the ship in wrecked; we go for a pleasure sail on a lake and the boat turns over; we slip as we are walking along the bank of a river, and half in the water. If we can swim, we have chance for saving our own lives, but if we cannot swim, we are pretty certain to be drowned. So for our own safety, we should learn to swim.
Lastly, if we can swim, we may be able to save other people from drowning. How sad it is to see a friend drowning before our eyes while we cannot help just because we cannot swim.
11.Who says that swimming is the best exercise? _________.
A. Farmers          B. Dentists     C. Fishermen            D. Doctors
12.When swimming, ________.
A. We don’t move at all                    B. all the muscle of the body are used
C. we move our legs only                D. we drink lots of seawater into our stomach
13.Swimming ________.
A. gives great pain                     B. gives no pleasure
C. gives much pleasure                  D. does harm to the body
14.If we can swim, ________.
A. we are no longer humans, but fish         B. we shall be drowned one day
C. we have a chance of saving our own lives D. we can’t walk any more
15.If we can swim, ________.
A. we may be able to help others from drowning
B. we can’t save others from drowning
C. it is pretty danger certain that we will get drowned
D. there is a great danger when we fall into the water

The Earth has warmed by about half a degree（0.50℃）over the last 100 years. It could be getting warmer on its own, but many scientists think that people are making the Earth warmer by making a greenhouse effect. The greenhouse effect is important. Without it, the Earth would not be warm enough for us to live on. But just a little warmer than it is now could cause problems for humans, plants and animals.

Many of the things we do every day can change the Earth’s temperature by sending greenhouse gases into the air. We send greenhouse gases into the air when we watch TV, turn on lights, dry hair, play video games, wash or dry our clothes or drive cars. The rubbish from factories and homes also produces greenhouse gases.

Even a small change in temperature can affect our weather. This can cause changes in the sea levels, the air, flooding, and our fresh water.

The change in the temperature can also cause changes in the living places for animals and plants, endangering many animals.

Global warming is a big problem, and every little bit we do can help. We can save electricity. We can save energy in other ways such as by taking buses or walking rather than driving cars. We can recycle to reduce the rubbish and save natural resources such as trees, oil and metals. We can buy products that don’t do bad to the environment and we can turn to solar energy. Remember the little bit that you do will bring a better world.

1. Which of the following does not send greenhouse gases into the air?

A. Watching TV. B. Turning on a light.

C. Driving a car. D. Walking to school.

2. In this passage, the scientists are mainly trying to make the readers realize___________ .

A. the greenhouse effect is important

B. humans are making the earth warmer

C. the earth is getting warmer in 100 years

D. the earth could be getting warmer by itself

3. Without the greenhouse effect，we would _____________ .

A. be safer B. not be able to live

C. have a cleaner earth D. have a better world

4. The writer gives us advice on how to save energy in __________ .

A. Paragraph 2 B. Paragraph 3

C. Paragraph 4 D. Paragraph 5

5. Global warming is a big problem but ___________ .

A. we can't do anything to help B. we don't need to do anything

C. we can do something to help D. we can do something to stop it

The world is not only hungry but also thirsty for water. This may seem strange to you, since nearly 70% of the earth’s surface is covered with water. But about 97% of that is sea water or salt water. Man can only drink and use the other 3% of fresh water from rivers, lakes, underground and so on. And we can not even use all of that because some of it has been made dirty.

Earth Day is April 22. But on all other days, we must also remember how important water is. The water that we use is the most important natural resource on the earth. Today we face serious water problems. One of them is water pollution. All kinds of things from cars, factories, farms and homes make our rivers, lakes and oceans dirty. Polluted water is very bad for people to drink. And dirty water is bad for fish, too.

How do cars and factories make our water dirty? First they pollute the air. Then when it rains, the rain water makes our drinking water dirty. Dirty rain, called acid rain is also bad for plants, animals and buildings. Scientists say that in 30 years, more than half of the people in the world won’t have enough clean water. We have to learn how to stop wasting water. One of the first steps is to develop ways of reusing it. Today in most large cities, water is used only once and then sent out into a sewer system (下水道). From there it returns to the sea or goes underground.

But even though every large city reused its water, we would still not have enough. So we should make use of sea water by removing the salt in it. If we can take these steps, fresh water won’t be used up.

1.The world is thirsty for water because _______.

A. we don’t have enough fresh water B. a lot of water goes into sewer systems

C. only 70% of the earth’s surface is water D. sea water is widely used rather than fresh water

2.From this passage, we know acid rain _______.

A. is only bad for living things B. is not bad for buildings and factories

C. can be produced in factories D. is bad for people, animals, plants and buildings

3.One difficult way we can solve the problem is to _______.

A. use the water with salt in it B. remove the salt from sea water

C. get water from underground D. reuse the water in cities

4.What is the best title for this passage?

A. Fresh water and sea water B. A thirsty country

C. The importance of water D. The world’s water problem

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