-Can you tell us just now? -Sorry, I don’t know. A. what Miss Wang says B. what Miss Wang said C. what does Miss Wang say D. what did Miss Wang say 题目和参考答案——青夏教育精英家教网—

题目内容

—Can you tell us __________ just now?

—Sorry, I don’t know.

A. what Miss Wang says B. what Miss Wang said

C. what does Miss Wang say D. what did Miss Wang say

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相关题目

The boy has a cold and the doctor asks him ________ more water.

A. drink B. to drink C. drinks D. drinking

— Jenny, I need some milk.

—OK, Mum.____ do you need?

A. How long B. How far C. How often D. How much

单项填空，从下面各题所给的A、B、C、D四个选项中，选择可以填入空白处的最佳选项。

The girl is at school. __________ is busy with her work.

A. He B. Him C. She D. Her

—Lucy, let me __________ a look at your new watch.

—Ok, dad.

A. has B. have C. to have D. having

BEING an astronaut sounds cool, doesn’t it? In space, they get to do some pretty amazing things, like floating(漂浮) in zero gravity(重力).

However, there are also plenty of things that astronauts can’t do because of their weightless environment, and that’s very sad. What’s worse, they can’t even let their sadness show, because it’s impossible to cry in zero gravity.

Of course, astronauts can still produce tears(眼泪). But crying is much more difficult in space, according to The Atlantic(大西洋月刊) in January. Without gravity, tears don’t flow(流动) down out of the eyes like they do here on Earth. This means that when you cry in space, your tears have nowhere to go — they just stick(粘) to your eyes.

In May 2011, astronaut Andrew Feustel experienced this during one of his spacewalks. “Tears,” he said, “don’t fall off of your eyes. They just stay there.”

Besides making your vision(视线) unclear, this can also cause physical pain. Back on Earth, tears are supposed to bring comfort to the eyes. But that’s not the case(情况) in space. The space environment dries out astronauts’ eyes, and when tears suddenly wet the eyes, it can cause pain rather than comfort. “My right eye is stinging(刺痛) like crazy,” Feustel told his teammate during the walk.

Since gravity doesn’t work in space, astronauts need some extra help to get rid of(除去) the tears. Feustel chose to rub his eyes against his helmet to wipe(擦) the tears away. Another choice is to just wait — “When the tears get big enough, they simply break free of the eyes and float around,” astronaut Ron Parise told The Atlantic.

There are lots of small things — things like crying — that we are so used to on Earth. We usually take them for granted until they become a problem in a totally different environment, like space. There, astronauts can’t talk to each other directly. They also can’t eat or drink in normal ways. They can’t even burp(打嗝), because there is no gravity to hold the food down in their stomach. If they do burp, they just end up throwing up(呕吐) everything in their stomach, according to the UK National Space Center.

Therefore, perhaps it’s only space explorers who can honestly say, “Gravity, you’re the best.”

1. From Paragraphs 2 and 3, we can know that __________.

A. astronauts are unable to feel sad in space

B. astronauts produce fewer tears in space

C. tears produced in space flow down more slowly

D. tears produced in space don’t flow downward

2. What effect do tears have on astronauts?

A. They cause physical pain. B. They bring comfort to them.

C. They make their vision clearer. D. They float around and cause trouble.

3. The underlined phrase “take them for granted” in paragraph 7 means __________.

A. find them important B. consider them useless

C. need them during an emergency D. fail to notice their presence

4. Paragraph 7 is mainly about __________.

A. suggestions of how astronauts can stay comfortable in space

B. other basic things that are difficult to do in space

C. why burping is impossible in space

D. things human can’t do without gravity

The sun looks like a shining gold plate, _____ it is really a big ball.
A. and B. but C. or D. so

阅读短文，根据短文内容回答问题。

In the past, man did not have to think about the protection of his environment. There were not many people on the earth, and natural resources seemed to be unlimited .

Today, things are different. The world has become too crowded. We are using up our natural resources too quickly, and at the same time we are polluting our environment with dangerous chemicals. If we continue like this, human life on earth will not survive.

Everyone realizes today that if too many fish are taken from the sea, there will soon be none left. Yet with modern fishing methods, more and more fish are caught. We know that if too many trees are cut down, forests will disappear and nothing will grow on the land. Yet, we continue to use bigger and more powerful machines to cut down more and more trees.

We realize that if rivers are polluted with waste products from factories, we will die. However, in most countries waste products are still put into rivers or into the sea, and there are few laws to stop this.

We know, too, that if the population of the world continues to rise at the present rate, in a few years, there will not be enough food.

If we eat more vegetables and less meat, we will easily get more food. Land that is used to grow crops can feed five times more people than land where animals are kept.

The world population will not rise so quickly if people use modern methods of birth control.

Finally, if we educate people to think about the problems, we shall have a better and cleaner living place in the future.

1. Is the number of people in the world just the same as it was in the past?

2. Are the natural resources on the earth limited or unlimited?

3. Why do we have fewer and fewer fish and trees now?

4. What is the writer’s advice on eating?

5. What must we do to make our human beings live happily on the earth?

Mrs. Smith is a teacher. Her house is not far from her school and she walks to school every day. All the students like her. Mrs. Smith walks to school on a very cold and windy morning. The cold wind cuts her face, and big tears go down her face. She arrives at the school and goes into the classroom. It is nice and warm there and Mrs. Smith is happy. But then a small boy looks at her and puts his arms round her and says, “Don’t cry, Mrs. Smith. We all love you.”

( ) 1. Mrs. Smith works in ________.

A. an office B. a school C. a shop D. a museum

( ) 2. Mrs. Smith lives ________ the school.

A. in B. near C. far from D. west of

( ) 3. Mrs. Smith goes to work ________.

A. on foot B. by car C. by bike D. by bus

( ) 4. The word “tears” means (意思是) “_____” in Chinese.

A. 水滴 B. 尘埃 C. 睫毛 D. 眼泪

( ) 5. Big tears go down Mrs. Smith’s face because ________.

A. she is very tired B. the students don’t like her

C. she is too happy D. it is too cold

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