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.” 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 |
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. |
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 |
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 |
We all want to have vacations. To me, it’s very important to relax myself. I finished a one-week vacation just now. Let me tell you what I did. I know you will feel bored when you look at other people’s vacation pictures!
My son finished his last week of school. During that week, I became a school mom. They had a class party at a teacher’s house, so I volunteered (志愿) to drive some of the students and attend the party. That was the last week my son would be with them. So it was time for me to spend time with them. I had lunch with the class and then attended their meeting. I never had time to be with the class before. I found it very interesting and my son was happy to show off that.To the writer, the best thing to do on her vacation is .
| A．to play with her child |
| B．to have a good rest |
| C．to work from day to night |
| D．to go to a new place |
According to the writer, people .
| A．don’t like looking at others’ vacation pictures |
| B．often help their children’s teachers |
| C．often work for their children’s classes |
| D．like showing them off in the school |
From the passage, we can guess the party is to celebrate .
| A．the teacher’s birthday |
| B．the teacher’s child’s birthday |
| C．the children’s graduation (毕业) |
| D．the finishing of their vacation |
The word “attend” means .
| A．组织 | B．离开 | C．观赏 | D．参加 |
Little Peter is a boy of nine. He began to go to school the year before last and now he’s in Grade Three. He lives not far from the school but he is often late for class. He likes watching TV in the evening and goes to bed late, so he can’t get up on time in the morning.
This term, Mrs. Black, Peter’s aunt, works in Peter’s school. She teaches Grade Three math. She’s strict with Peter and often tells the boy to obey the school rules and come to school on time. Yesterday morning Peter got up late. When he hurried to school, it was half past eight. His aunt was waiting for him at the school gate.
“You’re ten minutes late for the first class, Peter,” Mrs. Black said angrily.
“Why are you often late for class?”
“Every time I get to the street corner, I see a guidepost(路标). It says：
‘SCHOOL---GO SLOW!’ ”Peter is at school for __________.
| A．one and a half years | B．two years |
| C．more than two years | D．more than three years |
Peter is often late for school because ________.
| A．he likes playing very much |
| B．he goes to school slowly |
| C．he can’t sleep well at night |
| D．he can’t get up on time in the morning |
The first class begins at ________.
| A．ten to eight | B．eight |
| C．eight-twenty | D．ten past eight |
The guidepost is for ________.
| A．drivers | B．Peter | C．workers | D．teachers |
Fruit is good for people. Many people eat some fruit every day. Mr. and Mrs. Green like fruit very much and every Monday Mrs. Green goes to buy some fruit in the shop near her house. The man in the shop knows her well and helps a lot. She can buy all kinds of fruit there, apples, pears, oranges and bananas. In different time of the year, the price of each kind of fruit is not the same, sometimes high, sometimes low. Mrs. Green wants to buy cheap fruit. But Mr. Green likes bananas only. She buys bananas for him every week. She only buys cheap fruit for herselfWhen does Mrs. Green go to buy some fruit?
| A．Saturday | B．Monday. | C．Thursday. | D．every day |
Where does Mrs. Green buy fruit?
| A．In the shop near her house. | B．In the town. |
| C．Near the shop | D．In different shops |
Which of following is not right?
| A．Fruit is good for people. |
| B．Mr. and Mrs. Green like fruit a lot. |
| C．Mrs. Green can buy all kinds of fruit. |
| D．Mrs. Green only buys apples for herself. |
In different time of the year, the price of each kind of fruit is______.
| A．the same | B．not the same | C．high | D．cheap |
There was a heavy snow last night. Maria stayed at home. Her cousin Cara came to visit her. She came back from Beijing. She told Maria something about her vacation. "It was pretty good. "She said. Cara visited the Palace Museum and the Great Wall. She took a lot of photos.
It was lunch time. Maria's parents were not at home. They decided to cook by themselves. Maria cooked noodles with some tomatoes and peppers(胡椒). After Cara ate up the noodles, she said slowly, "I think it is delicious!" But Maria thought the food was too awful. She said," Cara, thank you, but I put too many peppers!"—How was the weather? —It was 。
| A．sunny | B．snowy | C．cloudy | D．rainy |
—Where did Cara go on vacation? —She went to________？
| A．Hainan | B．Tianjin | C．Beijing | D．Anhui |
cooked noodles.
| A．Maria | B．Maria's parents | C．Cara | D．Mary |
There are some with the noodles.
| A．peppers, mushrooms and tomatoes |
| B．green peppers, tomatoes and eggs |
| C．peppers, tomatoes |
| D．peppers and eggs |
Hello! I’m Mark Smith. I’m an American boy. I’m 12 years old. This is my little sister, Ann . She is five. My family are in China now. Because my father and my mother work in China. They are English teachers. They work hard. The students all like them.
Now I’m a middle school student. I have a friend at school. He’s a Chinese boy. He’s very good. His name is Huang Long. His English name is Bill. But I don’t know his family name. Can you tell me?What’s my sister’s name?
| A．Smith Ann | B．Smith | C．Ann | D．Mark |
What’s Ann’ s last name?
| A．Mark | B．Bill | C．Huang | D．Smith |
Where is Mark now?
| A．In China | B．In America |
| C．In England | D．In Canada |
Where is Bill from(来自)？
| A．The USA | B．China | C．Japan | D．England |
Huang Long’s family name is .
| A．Long | B．Bill | C．Smith | D．Huang |