题目内容

Space is a lonely place. Hundreds of thousands of kilometers from home, astronauts have a hard life. It stands to reason that, once in a while, they need to have a good cry. But this is a lot harder than it sounds.

We still know very little about space, and about living in zero gravity (重力). In fact, we are discovering new things every time astronauts take to the sky. As The Atlantic reported in January, crying is not all that simple in space. This is because when a person normally cries, gravity makes their tears move downwards. But in a spacecraft, this is not the case. Here, there is no gravity, which is why we so often see pictures of astronauts floating around. This means that, strangely, when you cry, your tears have nowhere to go. As a result, they just stick to your eyes.

In May 2011, astronaut Andrew Feustel experienced this. “Tears,” as he said, “don’t fall off of your eye...they just kind of stay there.” This can be quite painful. In space, your eyes get very dry, and the added moisture is annoying. Sometimes, things get even unusual. The astronaut Ron Parise told The Atlantic that when tears get big enough, they “break free of the eye and float around”.

No one can be quite sure why we cry. Why should water in our eyes have anything to do with feeling sad? If you stop to think about it, crying is a very strange thing indeed. And now, thanks to the wonders of space, it just got even stranger.

1.What’s the main idea of the first paragraph?

A. It’s hard to cry in space.

B. It’s easy to feel sad in space.

C. Living in space is lonely.

D. Nobody wants to live in space.

2.What will happen if astronauts cry in a spacecraft?

A. The tears will move downwards.

B. The tears will stick to their eyes.

C. The tears will go out of the window.

D. The tears will move upwards.

3.What does the underlined word “float” probably mean in this passage?

A. 静止 B.漂浮 C.盘旋 D.下沉

4.How will astronauts feel if tears are always in their eyes?

A. Sad. B. Comfortable.

C. Happy. D. Uncomfortable.

5.What can we learn from the passage?

A. Our eyes usually feel very wet in space.

B. Gravity makes people’s tears move upwards in space.

C. People know about living in zero gravity very well.

D. Tears will float around if they are big enough in space.

 

1.A

2.B

3.B

4.D

5.D

【解析】

试题分析:这篇文章说的是关于太空的知识,在太空哭也不是一件很简单的事情,在太空由于没有重力,宇航员都是漂浮着,所以即使是哭,泪水也掉不下来,粘在眼睛周围。没人确定我们为什么会哭,为什么眼中的水是伤感的表现。

1.主旨大意题,根据整篇文章的内容我们判断这篇文章是在讲关于在太空哭的事情。故选择A。

2.细节辨析题,根据文章第二段倒数第一行when you cry, your tears have nowhere to go. As a result, they just stick to your eyes.,当你哭时,眼泪无处可去,粘在眼睛周围。故选B。

3.词语猜测题,根据文章第三段最后一行The Atlantic that when tears get big enough, they “break free of the eye and float around”. 当眼泪变得足够大,他们“挣脱的眼睛漂浮在周围。故选择B。

4.细节辨析题,根据文章第三段第二行Tears,” as he said, “don’t fall off of your eye...they just kind of stay there.” This can be quite painful. 在太空眼中有泪是很疼的。A. Sad.难过的,B. Comfortable.舒服的,C. Happy.高兴的,D. Uncomfortable不舒服的,.故选D。

5.细节辨析题,根据第三段In space, your eyes get very dry,得知A是错误的,根据第一段末尾they just stick to your eyes.B是错误的,根据整篇文章的意思,生活在没有重力的世界是很不方便的,故C是错误的。故选择D。

考点:科普类阅读短文。

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What’s the strongest part of your body? Your head? Bones? It’s your teeth. There is a special thing called enamel(牙釉质)in teeth. It is the hardest thing in the human body and keeps bacteria(细菌)away. However, teeth are hurt easily to problems and disease. September 20 is National Teeth-loving Day in China. Let’s pay attention to the health of our teeth.

Teeth problems are common around the world. Most children and young adults have tooth decay(龋齿). A study which come out on China Health Monthly magazine this year showed that 40.74% of a sample(抽样)of 1,306 Chinese students under age 15 has decayed teeth.

Food that is rich in sugar increases the risk of tooth decay. After you eat, bacteria go crazy over the sugar on your teeth. The bacteria turn sugar into acids that eat away at tooth enamel. This causes holes in your teeth.

Another common problem is crooked teeth(龅牙). When your new teeth begin to grow and the old teeth haven’t fallen out, there isn’t enough space for the new ones. This causes crooked teeth.

Don’t worry. Here are some ways to keep your teeth healthy.

◆Brush at least twice a day in the morning and in the evening.

◆Learn to use dental floss(牙线). The floss gets rid of food that’s hidden where your toothbrush can’t get it.

◆Visit a dentist. He or she can check if you have any dental problems and help you clean your teeth.

◆Pay attention to what you eat. It’s better to eat lots of fruit and vegetables instead of fries and drink water instead of soda.

◆Wear braces(牙套) to make your teeth straight and beautiful.

1.What’s the strongest part in the human body according to the passage?

A. Bones. B. Teeth.

C. Head. D. Bactria.

2.When is National Teeth-loving Day in China?

A. September 30. B. October 20.

C. September 20. D. June 5.

3.Crooked teeth refer to(指的是) _________.

A. decayed teeth B. the old teeth

C. the fallen teeth D. the new teeth

4.Which of the following is NOT true about decayed teeth?

A. Once you eat sugar, you must have decayed teeth.

B. Bacteria become strong over the sugar on your teeth.

C. Bacteria can turn sugar into acids that eat away at tooth enamel.

D. If you have decayed teeth, there may be holes in those teeth.

5.Which of the following is NOT a good way to keep teeth healthy?

A. Make your teeth straight with braces.

B. Brush your teeth twice a day or more.

C. Eat much fries or drink much soda.

D. See a dentist if you have dental problems.

 

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