题目内容

Workers wear them. Swimmers wear them. Scientists wear them. Woodcutters wear them. People who play sports wear them. Goggles protect the eyes. They keep out water and chemicals. They keep out bits of wood or stone. They might look funny, but goggles do serious work!

Why do people need to wear goggles? They need to keep their eyes sasfe. Many things can hurt our eyes. Have you ever gotten a piece of sand or dirt or other small particle in your eye? What happens? It hurts. Your eye begins to fill with tears. Those tears are your body’s way of getting the sand or dirt out of your eye. Sometimes this works. Your eye feels much better.

But what happens if your tears don't work? What happens if the piece of sand has gotten stuck in your eye? Eyes are delicate. They can be scratched or cut easier than skin(皮肤). If the particle is not washed out by tears, you might have to go to the doctor. You could even have problems seeing out of that eye.

Instead of waiting to see if tears will help, some people use goggles. This can prevent things from getting in their eyes at all. If they use goggles. their eyes are protected from the things that can cause problems, Goggles are a better way to protect eyes. They are made of plastic or glass, and they are tied around your eye area. Some of them hook behind your ears like glasses. Other goggles have a strap (带子) that goes around your head. Both kinds stay right where you put them until you take them off. That way, you can use both hands to work or play sports, and you don't have to worry about something getting in your eyes.

Your eyes are safe, and you can get busy working or playing!

1.Which of the following is a kind of goggles?

A. B. C. D.

2.From the passage, we know that tears___________.

A. work better than goggles

B. stop things getting into eyes

C. help to wash out the sand or dirt

D. show ones sadness or happiness

3.The underlined word" delicate" in Paragraph 3 means ___________.

A. easily hurt B. quite important C. easily protected D. quite special

4.The fourth paragraph mainly __________.

A. describes different types of goggles

B. tells how goggles develop

C. introduces the problems of goggles

D. encourages people to use goggles

1.D 2.C 3.A 4.D 【解析】本文主要介绍了护目镜的作用,并鼓励人们使用护目镜保护自己的眼睛。 1.细节理解题。题干询问的是:下列哪一个是一种护目镜?根据文章第四段They are made of plastic or glass, and they are tied around your eye area. Some of them hook behin...
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Scientists in Britain and the United States have made a new kind of enzyme(酵素) that eats plastics(塑 料). With its help, plastics can be turned into smaller parts and go away quickly. Scientists believe that, in the future, it could solve the problem of plastic pollution.

The enzyme is able to break down PET, a form of plastic. PET was first made in the 1940s and is now widely used to make plastic bottles. It can remain in the environment for many years and pollute large areas of land and water. So it has always been a headache to deal with the waste from PET and other plastics.

The researchers made the discovery(发 现) while examining the structure of a natural enzyme in Japan. They found that the natural enzyme was helping to break down PET plastics. So, they decided to make small changes to the enzyme by adding some amino acids(氨 基 酸). It made the natural enzyme’s plastic-eating abilities work faster and better.

John McGeehan, one of the lead researchers, said, “We’ve made an improved enzyme. It’s better than the naturl one. And we are trying to make more improvements to it.” He went on, “The enzyme is not harmful to humans or animals,and it is friendly to the environment. So we are considering putting it into wider use.”

The team is now trying to make the enzyme break down PET in large quantities(大量的). “We’ll see that the plastic pollution may be stopped with this technology. However,there is still a long way to go,”John McGeehan added.

1.According to the scientists, the enzyme may solve the poblem of pollution.

A. air B. water C. light D. plastic

2.The underlined phrase “break down” in the passage probably means “ ” in Chinese.

A. 实验 B. 生产 C. 发明 D. 分解

3.Researchers discovered that a natural enzyme helped eat plastics .

A. in B. in the US C. in Japan D. in China

4.Which of the following is TRUE according to the passage?

A. The scientists are sill trying to improve the enzyme.

B. The enzyme will pollute large areas of land and water.

C. The natural enzyme woks better than the improved one.

D. The natural enzyme is harmful to humans and animals.

1.D 2.D 3.C 4.A 【解析】试题这是一篇科普文,介绍了英国和美国科学家研制出的一种新的酶,可以帮助解决塑料污染的问题。 1.题意:根据科学家们的说法,这种酶可以解决 污染的问题。考查细节理解题。根据Scientists believe that, in the future, it could solve the problem of plastic po...

When I was 14 years old, I used to babysit (做临时保姆) for the lady next door. Every two weeks she would pay me $80. I always looked forward to getting paid so I could go to the shopping centre with my friends on Saturday and spend the money on my favourite things.

One Friday evening I heard my mom on the phone with our neighbor and I heard her say a fewtimes, “Oh, that is terrible.” After my mom hung up, I asked what was wrong. She said that the neighbor had no food in her house and that she didn’t know what she was going to feed her daughter with. Her husband had spent their money on beer and got angry because his wife asked for money to buy groceries (食品杂货). He began to pull dishes out of the cupboards (壁橱) and threw them at the wall. So, the lady didn’t have any groceries or dishes.

I had an idea. I asked my mom to drive me to McDonald’s.I bought the lady and her daughter dinner with the babysitting money she had given me. After I had taken them dinner, I asked my mom to take me to the store and I bought the lady dishes and groceries with the rest of the money. When I knocked on the front door, the lady gave me a big hug and told me how grateful she was that I helped her. When Saturday came around, I didn’t have any money to go to the shopping centre with my friends, but I didn’t care, because I felt great that I was able to help this family.

Later, we moved away from the area. I saw our neighbor three times and she always told me how much she thanked me for caring her and her daughter.

1.The writer always looked forward to getting paid, so she could ________.

A. buy dishes for her mum B. spend money on McDonald’s

C. buy food for the lady’s daughter D. spend the money on her favourite things

2.What did the writer buy for the lady?

A. McDonald’s, dishes and beer. B. Groceries, cupboard and dishes.

C. McDonald’s, dishes and groceries. D. McDonald’s, groceries and cupboard.

3.How did the lady feel when the writer helped her?

A. Surprised. B. Thankful. C. Terrible. D. Angry.

1.D 2.C 3.B 【解析】本文讲述了作者帮助邻居的一位女士,作者用自己的挣得钱给她买了麦当劳快餐,菜肴和杂货。那位女士非常感激作者。 1.D 细节理解题。根据I always looked forward to getting paid so I could go to the shopping centre with my friends on Saturda...

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