Afewdaysago，Iwenttoschoolwithl-优题课

As you may expect, life in space is much different from life on earth. So of course people need some time to get used to it. How do they live, work and play up there?
Space food keeps getting more like the food we eat at home on the earth. In the past, astronauts could eat only freeze-dried food. But now the space station has water, microwave ovens and fridges. So astronauts can eat more usual kinds of food, like fruit, vegetables and ice cream!
All people in the ISS（国际空间站）have their own rooms. There’s no gravity, so they have to attach themselves to their beds, or they’ll float away! That may seem like a hard way to sleep, but astronauts say that sleeping in space is actually not too bad.
This is more important in space than on Earth. There’s not much gravity in space. Astronauts don’t stand up, sit down or walk in space, so their muscles don’t have to work much. They exercise on bikes and other machines for about two hours every day while they’re in space. In this way, they can still keep strong and healthy when they get back home.
Easy things like brushing your teeth can be hard in space with low gravity. Water doesn’t flow out of a tap, it floats in a bubble（水泡）! Astronauts used a special hose（软管）to take showers. And when they’re finished, they use a vacuum（真空的）hose to suck the dirty water off of their bodies. How do you go to the toilet in space? They use a special “air toilet”. It uses air, not water, to take everything away.
What do astronauts do when they aren’t working? They read books, play cards, listen to music or send e-mail to their friends and family. Sometimes they just sit and look out the window. Doesn’t sound like much fun? But what if you could see planet Earth out of your window, with a sunset or sunrise every 45 minutes?
1．Which of the following can be the title of this passage?
A. Life In Space. B. Space Food. C. Showers In Space. D. A Visit To Space
2．From this passage we know that _______.
A. astronauts eat quite different food in space from what they eat on the earth
B. astronauts ate only fruit in space in the past
C. astronauts can only eat freeze-dried food now
D. astronauts can only eat fruit and vegetables now
3．Astronauts attach themselves to bed so as to ________.
A. keep themselves warm B. prevent themselves from floating away
C. have a good sleep D. feel better
4．Astronauts have to do exercise for two hours every day because ________.
A. they have nothing to do in space B. they are told to do so
C. they do so to keep healthy D. they do so to prevent them from sleeping
5．From the last paragraph we can guess that ________.
A. the sun moves fast around the earth
B. the earth circles round the sun very fast
C. the earth is very small
D. the spaceship circles round the earth once every 90 imnutes

1970 was “World Conservation Year”. The United Nations wanted everyone to know that the world was in danger. They hoped that the governments would act quickly in order to conserve nature. Here is one example of the problem. At one time there were 1300 different plants, trees and flowers in Holland, but now only 860 remain. The others have been destroyed by modern man and his technology. We are changing the earth, the air and the water, and everything that grows and lives. We can't live without these things. If we continue like this, we shall destroy ourselves.
What will happen in the future? Perhaps it is more important to ask “What must we do now?” The people who will be living in the world of tomorrow are the young of today. A lot of them know that conservation is necessary. Many are hoping to save our world. They plant trees, build bridges across rivers in forests and so on. In a small town in the United States a large group of girls cleaned the banks of eleven kilometres of their river. Young people may hear about conservation through a record called “No, One's Going to Change our World. ” It was made by Scatles, Cliff Richard and other singers. The money from it will help to conserve wild animals.
1. There are few plants, trees and flowers in Holland now because _______.
A. there has been a lot of conservation in Holland
B. Holland does not need so many plants, trees and flowers
C. many plants, trees and flowers don't grow there any more
D. some plants, trees and flowers are dangerous
2. We shall destroy ourselves if we don't _______.
A. improve our technology in planting trees
B. hear about the record called “No, One's Going to Change our World”
C. try our best to save the world
D. change the earth
3. “No,One's Going to Change our World. ” was _______.
A. an important book published in 1970 B. a record calling on people to conserve nature
C. an idea that nobody would accept D. a rule worked out by the United States
4. What is the most important thing for us to do to save our world?
A. We should clean the banks of our rivers.
B. We should know what will happen in the future.
C. We should know what we should do and do it now.
D. We should plant more trees and flowers.
5. What's the main idea of the passage?
A. 1970 was “World Conservation Year”.
B. The United Nations wanted everybody to know that the world is in danger.
C. Conservation is necessary.
D. It is the young people who are helping to save our world .

III. 阅读理解（共20 小题；每小题 2分，满分40分）
Paragraph 1
Scientists have learned a lot about the kinds of food people need. They say that there are several kinds of food that people should eat every day. They are: (1) green and yellow vegetables of all kinds. (2) citrus(柑桔) fruits and tomatoes; (3) potatoes and other fruits and vegetables; (4) meat of all kinds, fish and eggs; (5) milk and foods made from milk; (6) bread or cereal(谷类), rice is also in this kind of food; (7) butter, or something like butter.
Paragraph 2
People in different countries and different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways. People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times a day. Scientists say that none of the differences is really important. It doesn’t matter whether foods are eaten raw(生的) or cooked, canned or frozen. It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at eleven o’clock at night. The important thing is what you eat every day.
Paragraph 3
There are two problems, then, in feeding the large number of people on earth. The first is to find some ways to feed the world’s population so that no one is hungry.
The second is to make sure that people everywhere have the right kinds of food to make them grow to be strong and healthy.
1. According to the scientists, which of the following groups of food is the healthiest for your lunch?
A. chicken, apples, cereal, cabbages B. potatoes, carrots, rice, bread
C. oranges, bananas, fish, tomatoes D. beef, pork, fish, milk
2. It is important for people to eat _______.
A. three times a day B. dinner at twelve o’clock
C. cooked food all the day
D. something from each of the seven kinds of food every day
3. People in different countries and different places of the world _______.
A. has the right kinds of food to eat B. cooks their food in the same way
C. has their meals at the same time D. eat food in different ways
4. Which of the following is NOT true?
A. People in some places don’t have enough to eat.
B. There are too many people in the world.
C. One of the problems is that no one is hungry.
D. The scientists are trying to make people grow to be strong and healthy.
5. If there is Paragraph 4, what do you think is going to be talked about?
A. When people eat their lunch B. What to do with the two problems
C. How to cook food in different ways D. Why people eat different kinds of food

For years , many people would not believe that smoke could attack so many parts of the body in so many ways . Study shows , however , that tobacco isn’t one single thing . At least 60% of it is gas—20 different kinds of gas . And one of these is the deadly carbon monoxide (CO) （一氧化碳）.
In factories , the amount of this gas in the air is measured , and it must be kept under fixed , safe level . But there is 640 times this safe amount in cigarette smoke .
Oxygen is carried through your body by the red blood cells . But this poison gas , CO, will get to the blood cells before the oxygen can . So , if you smoke your blood carries five to ten times more of this deadly gas than is normal . To make up for this , your body must make more red cells .
The oxygen in your blood passes into your tissues（组织）. But here again CO makes trouble . It keeps the oxygen from passing into your tissues as fast as it should . Because of this , cigarette country is always about 8000 feet above sea level . Someone who smokes and lives at sea level gets as little oxygen as a nonsmoker at an altitude（高度）of nearly two miles .This happens to everyone who smokes , no matter how old or how young . Anyone who competes in sports can tell you that those who smoke run out of breath more quickly than those who do not .
1．The gas amount in cigarette smoke is______________.
A．640 times higher than the gas safe levels in factories
B．640 times lower than the gas safe levels in factories
C．640 times as much as that in factories
D．as dangerous as that in factories
2．If you smoke , ______________ .
A．your blood carries more oxygen than is normal
B．your blood carries much more CO than is normal
C．you can have five to ten times of blood than usual
D．your blood will be poisonous
3．Those who smoke______________.
A．all live at sea level
B．don’t live at an altitude of two miles
C．breathe as much oxygen as non-smokers
D．only get the same amount of oxygen at the sea level as non-smokers at an altitude of nearly 2 miles
4．Smokers are______________.
A．easily hurt B．easily excited C．easily tired D．healthy

The report came to the British on May 21, 1941. The German battleship Bismarck , the most powerful warship in the world , was moving out into the Atlantic Ocean . Her task : to destroy the ships carrying supplies from the United States to war-torn England .
The British had feared such a task . No warship they had could match the Bismarck in speed or in firepower . The Bismarck had eight 15-inch guns and 81 smaller guns . She could move at 30 nautical miles （海里）an hour . She was believed to be unsinkable .
However , the British had to sink her . They sent out a task force headed by their best battleship Hood to hunt down the Bismarck . On May 24 , the Hood found the Bismarck .
It was a meeting that the German commander Luetjens did not want to see . His orders were to destroy the British ships that were carrying supplies , but to stay away from a fight with British warships .
The battle didn’t last long . The Bismarck’s first torpedo （鱼雷）hit the Hood , which went down taking all but three of her 1419 men with her .
But in the fight , the Bismarck was slightly damaged . Her commander decided to run for repairs to France , which had at that time been taken by the Germans . The British force followed her . However , because of the Bismarck’s speed and the heavy fog , they lost sight of her .
For two days , every British ship in the Atlantic tried to find the Bismarck , but with no success . Finally , she was sighted by a plane from Ireland , Trying to slow the Bismarck down so that their ships could catch up with her , the British fired at her from the air . The Bismarck was hit .
On the morning of May 27 , the last battle was fought . Four British ships fired on the Bismarck , and she was finally sunk .
1．The Bismarck sailed into the Atlantic Ocean______________.
A．to sink the Hood
B．to gain control of France
C．to cut off American supplies to Britain
D．to stop British warships reaching Germany
2．Many people believed that the Bismarck could not be defeated because she______________ .
A．was fast and powerful
B．had more men on board
C．was under Luetjens’ command
D．had bigger guns than other ships
3．We learn from the text that on 24 May______________.
A．the British won the battle against the Bismarck
B．the Bismarck won the battle against the British
C．the British gunfire damaged the Bismarck seriously
D．the Bismarck succeeded in keeping away from the British
4．Luetjens tried to sail to France in order to______________.
A．have the ship repaired B．join the other Germans
C．get help from the French D．get away from the British