| A．Just at 6:30. | B．Before 6:30. | C．A little later than 6:30. |
| A．On foot. | B．By taxi. | C．By bus. |
3 . On Dec.9, 2021, three Chinese astronauts gave a science lecture 400 kilometers above Earth. Zhai Zhigang, Wang Yaping and Ye Guangfu, who are working abroad the Tiangong space station, showed millions of students their life there. They also did some fun science experiments. Let’s take a look at some of them.
Use it or lose it
The human body grows with the pull of Earth’s gravity. But in space, our bones and muscles (肌肉) don’t need to sustain our body’s weight. This will cause bone and muscle loss. NASA says that astronauts can lose up to 20 percent of their muscles after just a couple of weeks. That is dangerous because they will be too weak to work.
Astronauts have different ways to prevent this. During the lecture, Zhai introduced a special uniform Ye was wearing. It’s called a “penguin suit”. There are many elastic bands (弹力带) inside the suit. Wearing it, astronauts use their muscles to stretch the bands. This keeps their muscles strong.
________
During another experiment, Wang made a water film (膜). Then she added more water drops onto the film to make it a water ball. This can never happen on Earth. Why?
We need to first understand the surface tension (表面张力) of water. It is like a “skin” of water. The “skin”is there because water molecules (分子) are drawn to each other. Most of the time, gravity is too strong and it breaks the “skin”. But with zero gravity in space, the “skin” stays strong and the water ball will not break.
Water in space acts differently from water on Earth in other ways. For example, water will not flow downward if you try to pour it into a cup. That’s why astronauts usually drink water through straws in sealed bags.
1. What can we learn about the lecture from space?| A．It is a part of the astronauts’ daily work. | B．It took place in the International Space Station. |
| C．It is one of the astronauts’ ways to ask for help. | D．It took place 400 kilometers above Earth. |
| A．astronauts | B．muscles | C．bones | D．bodies |
| A．Space water is valuable | B．Space water is different |
| C．Space water is important | D．Space water is interesting |
| A．To raise people’s interest in space exploration. |
| B．To explain the importance of space experiments. |
| C．To ask readers to do more science experiments. |
| D．To introduce the space lecture given by Chinese astronauts. |
| say, sit, live, take, make, use, teach, try, wait, play, return |
My grandpa loves playing chess. Every day he plays chess with his friends. Last week, he came to visit us in Canada. But he was very disappointed when he found that nobody here
One day, when I came back from school, I saw my grandpa
“Grandpa, someone
“Really?” he said, his eyes opening wide. “Who? And where?”
He
“Right here.” I said to him.
Then I taught him how
“How interesting it is! This is simply fantastic!” He
Now he enjoys playing chess online and
Grandpa
| A．Lucy and Lily | B．Lucy and Lily’s | C．Lucy’s and Lily’s | D．Lucy’s and Lily |
How to learn a foreign language well?
Don’t be afraid of making mistakes.
Do group activities.
People use language to communicate with other people. A good language learner always looks for chances to talk with other students.
Good language learners have fun with the language. You can watch TV series or films, listen to songs, play video games or read books.
Think in the language outside the classroom.
When you’re walking down the street, remember useful words and phrases.
| A．Make notes in class. |
| B．Enjoy learning the language. |
| C．People often get things wrong. |
| D．Here are some of the most useful suggestions. |
| E．When you’re at home, say new words to practice your pronunciation. |
| A．speak | B．string | C．green |
| A．crystal | B．field | C．meet |
| A．bee | B．beneath | C．slip |
| A．big | B．six | C．nice |
| A．bread | B．eat | C．tea |
1. busy
| A．/i:/ | B．/u:/ | C．/ɪ/ |
| A．/i:/ | B．/e/ | C．/ɪ/ |
| A．/i:/ | B．/ɪ/ | C．/e/ |
| A．/i:/ | B．/e/ | C．/ɪ/ |
| A．/i:/ | B．/ɪ/ | C．/aɪ/ |
