六、根据语篇内容，从方框中选择合适的单词并用其正确形式填空
time day they stay get
human same for fast record
Why does your dog shake (抖动) when it’s all wet? It is not just trying to (1) you and your homework wet. There is a good reason (2) the shaking. Scientists took a look at the strange problem and (3) the shaking of 33 animals, including five types of dogs. They’ve found that mammals (哺乳动物) save lots of energy by shaking to dry (4) off, or they will use up to 20 per cent of their (5) energy to carry water with them. Nearly all furry (多毛的) mammals do it in the (6) way. But some mammals, like kangaroos, only shake part of their bodies, as they live in very hot weather and that makes them (7) dry easily.
Not every animal shakes at the same rate (频率). Small animals seem to shake (8) than others. A mouse shakes 30 (9) per second, while bears, tigers and big dogs shake only about four.
These animals do it so well that they shake off about 70 per cent of the water on their bodies in seconds. However, for us (10) , it takes us not seconds, but minutes! How amazing!

1. get
2. for
3. recorded
4. themselves
5. daily
6. same
7. stay
8. faster
9. times
10. humans

七、补全对话
根据对话情景，在每个空白处填上一个适当的句子，使对话意思连贯、完整。
Mark: Dolphins are really amazing animals.
Lucy: (1) ?
Mark: They are very smart. (2) .
Lucy: That’s cool.
Mark: They have a special way of using sound waves. (3) .
Lucy: I didn’t know that.
Mark: And they always look so lively when they swim.
Lucy: Sounds interesting.
Mark: (4) . It’s said that they once saved two boys in the sea.
Lucy: (5) !

1. Why do you think so?
2. They can learn many tricks.
3. They use them to find food and communicate.
4. They are also friendly to humans.
5. What wonderful animals!