1 . 选词填空

at a speed of, concentrate on, recover from, cut down, after all, manage to do

1. Immediate actions should be taken, like stopping ________________trees, to better the environment.
2. She fully intends to continue her sporting career once she has________________ her injuries.
3. You really shouldn’t have reacted to his comment on your work so violently.________________ he meant no harm to you.
4. If you are trying to acquire a new skill, please ________________ gaining some practical experience.
5. A light­year is the distance light travels in one year ________________299, 792 kilometers per second.

7 . 短语填空

cut down, be home to, in length, feed on, break down, breathe life into, due to, build up

1. A smile can __________barriers, ask for help or start a conversation.
2. It is the readers who ____________a newspaper with their letters.
3. These trees __________and that led the city to be buried by sand.
4. California __________more than 4,000 species of plants, and nearly half of them are found nowhere else.
5. Ranging from 84 to more than 150 cm __________, longboards look like other skateboards.
6. Raynor Winn and her husband Moth became homeless __________their wrong investment.
7. It is known that tigers belonging to meat-eating animals __________meat.
8. This will help them _________a sense of responsibility since young.