About ten men in every hundred suffer from colour blindness in some way. Women are luckier. Only about one in two hundred is affected in this matter. So some people say it is safer to be driven by women.
There are different forms of colour blindness. In some cases a man may not be able to see deep red. He may think that red, orange and yellow are all shades（色调）of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green—a strange world indeed.
Colour blindness in humans is a strange thing to explain. In our eyes there are millions of very small things called “cones”. These help us to see in a bright light and to tell differences between colours. There are also millions of “rods”, but these are used for seeing when it is nearly dark. They show us shapes but no colour.
Some insects have favourite colours. Mosquitoes（蚊子）like blue but do not like yellow. A red light will not attract insects, but a blue lamp will. In a similar way humans also have favourite colours. Yet we are lucky. With the aid of the cones in our eyes we can see many beautiful colours by day, and with the aid of the rods we can see shapes at night. One day we may even learn more about the invisible（看不见得）colours around us.With the help of the cones, we can .
| A．see in a weak light |
| B．tell different shapes |
| C．kill mosquitoes |
| D．tell orange from yellow |
Why do some people say it is safer to be driven by women?
| A．Women are more careful. |
| B．There are fewer colour-blind women. |
| C．All of them see everything in shades of green. |
| D．None of them has trouble in recognizing colours. |
This passage is mainly about .
| A．colour and its surprising effects |
| B．danger caused by colour blindness |
| C．colour blindness |
| D．the invisible colours around us |
请仔细阅读题中的学生情况说明，从A—F中选出能解决他们问题的恰当建议。(有一项多余)
| A．Emily often feels tired and seems to be lack of energy. |
| B．Jeff spent his summer vacation on the beach and got serious sunburnt. |
| C．Kate has poor eyesight and she can’t see clearly at night. |
| D．Tony sometimes feels pains in his bones and he has loose teeth. |
E. Luke is so careless that he often gets hurt. And it takes a long time for his wound to heal.
F. Linda feel nervous before the new people.
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1.Vitamin A What can high-vitamin A foods do for you? be great for night vision help you see in color help your grow properly and aids in healthy skin ﹡ vitamin A in carrots helps you see at night |
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2.The B vitamins What can the B vitamin do for you? help make energy and set it free help make red blood cells which carry oxygen(氧气) throughout your body ﹡ The B vitamins in leafy green vegetables help your body make protein(蛋白质)and energy. |
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3.Vitamin C What can vitamin C do for you? keep body tissues(组织) in good shape help you heal when you get hurt help your body resist infection ﹡ Vitamin C in oranges helps your body heal if you get a cut |
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4. Vitamin D What can vitamin D do for you? help keep your bones strong and healthy help keep your teeth strong and healthy help your body absorb the amount of calcium(钙) ﹡ Vitamin D in milk helps your bones and teeth. |
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5. Vitamin E What can vitamin E do for you? protect your skin from ultraviolet(紫外线) light protect you lungs from becoming damaged by polluted air help make red blood cells ﹡ Sunflowers seeds are the richest in Vitamin E |
We’ve talked about snails (蜗牛) and their slow move. But much of the time snails don’t move at all. They’re in their shells ---sleeping .
Hot sun will dry out a snail’s body. So at the least sign of hot sun, a snail draws its body into its shell and closes the opening with a thin cover. Then it goes to sleep. A snail will die in a heavy rain. So whenever it rains, it goes inside its shell house and goes to sleep. A snail can sleep for as long as it needs to. It can take a short sleep. Or it can sleep for days at a time. And it spends all the winter months in its shell, asleep.
In spring the snail wakes up. Its body, about three inches long, comes out of from the shell. When hungry, the snail looks for food. It can’t see very well. Its eyes, at the ends of the top feelers are very weak. But its sense of smell is very strong. It helps the snail to the new greens. Then the snail’s little mouth goes to work.
A snail’s mouth is no longer than the point of a pin(针). Yet it has 256,000 teeth! The teeth are so small that you can’t see them. But they do their work.. If you put a snail in a hard paper box, it will eat its way out. And if a snail wears out its teeth, it will grow new ones.
Mostly, a snail looks for food at night .But on cloudy days it eats in the daytime. It eats all day long. A snail can go on eating for hours and never feel full.A snail__________.
| A．moves more slowly in the daytime | B．has thousands of feet |
| C．doesn’t move at all | D．sleeps much of the time |
In the sentence “A snail draws its body into its shell” the word “draw” means_________.
| A．to make with a pen | B．to keep away from |
| C．to pull | D．to move to end |
From the story we know_________.
| A．the snail’s shell is very thin |
| B．a snail can’t see well |
| C．the snail’s nose is quite short |
| D．the snail’s body changes in different seasons |
A snail goes to sleep when_________.
| A．it feels hungry | B．it is put in a paper box |
| C．spring is coming | D．it rains heavily |
Which of the following in not true?
| A．A snail doesn’t like living under the sun. |
| B．In winter the snail doesn’t eat or move. |
| C．The snail’s teeth can’t be worn out.. |
| D．The snail’s strong sense of smell helps to find things far away. |
Everyone knows that exercise is important. We all need to exercise. Doctors say it is good for us. It makes your heart and body strong. Children who often exercise are more alert（灵活）. That means they do better in tests and schoolwork than those who don’t exercise.
They are many ways to exercise. You can walk, run, swim, skate, or play ball games. Make sure you exercise in the following ways: You have to like what you are doing. Exercise enough--- but not too much. It’s best to exercise twice a week. Thirty minutes each time is enough. Try all kinds of sports until you find one, two or even three sports that feel right for you.
You can exercise at fitness centers. They have a lot of equipment（设备）there. The equipment will help exercise your arms, legs and other parts of your body to make you healthy. Some people buy equipment for their homes. But it’s very expensive. the underline word “fitness centers” in the passage means _____.
| A．商务中心 | B．健身中心 |
| C．医疗中心 | D．购物中心 |
The sport “_____” is not told in the passage.
| A．playing soccer | B．skateboarding |
| C．walking | D．running |
The doctors say that exercise can make your heart and body _____.
| A．ill | B．happy | C．strong | D．health |
About “exercise”, which statement of the following is NOT right?
| A．Thirty minutes’ exercise each time is enough. |
| B．You have to exercise too much every day. |
| C．You needn’t do all kinds of sports to keep healthy. |
| D．You have to like the sports that you are doing. |
It’s best to exercise _____.
| A．at fitness centers | B．in groups |
| C．in the morning | D．twice a week |
C
What job is wanted above?
| A．Cooks. | B．Drivers. | C．Doctors. | D．Teachers. |
_________ will probably get the job.
| A．An English lady at the age of 27 |
| B．A woman who is good at French |
| C．An Australian of 35 with a teacher’s license |
| D．A Russian with 5 years of teaching experience |
What is not mentioned (提到)?
| A．Age. | B．Pay. | C．Address | D．Phone number |
If a foreigner wants to have an interview, he or she should make it _______.
| A．in late August | B．after August 15th |
| C．before August 15th | D．in early September |
What do you think it is?
| A．An ad. | B．An article. | C．A film. | D．A letter. |
The favorite food in the United States is the hamburger. The favorite place to buy a hamburger is a fast food restaurant. At fast food restaurant, people order their food, wait a few minutes, and carry it to their tables themselves. People also take their food out of the restaurant and eat it in their cars or in their homes. At some fast food restaurant, people can order their food, pay for it and pick it up without leaving their cars.
There are many kinds of fast food restaurants in the United States. The greatest in number sell hamburgers, French fries and so on. They are popular among Americans. Besides, fast food restaurants that serve Chinese food, Mexican food, Italian food, chicken, seafood and ice-cream are very many. The idea of a fast food restaurant is so popular that nearly every kind of food can be found in one.
Fast food restaurants are popular because they reflect(反映) American lifestyle. Customers (顾客)can wear any type of dress when they go to a fast food place. Second, they are fast. People who are busy do not want to spend time preparing their own food or waiting while someone prepares it. In fast food restaurants, food is not expensive. Therefore, people often buy and eat at a fast restaurant, while they may not be able to go to a more expensive restaurant very often.In the United States the favorite food is ____.
| A．Chinese food | B．Mexican food | C．French fries | D．the hamburger |
Americans like to go to fast food restaurants because they _______________.
| A．can easily find fast food restaurant |
| B．like to eat hamburger and French fries |
| C．are too busy to want to spend time preparing or waiting |
| D．are so rich that they don’t want to do cooking themselves |
_______ of fast food restaurants sell hamburgers and French fries.
| A．All | B．Most | C．Few | D．None |
The food in fast food restaurant is ____ ready before the customers order it.
| A．always | B．usually | C．seldom | D．never |
The best title for the passage is ______.
A. The Fast Food Restaurants in the U.S.A.
B. The Hamburger in the U.S.A.
C. American Life Style
D. All Kinds of Food in the U.S.A.
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