1 . The designer has tried every possible way to make the robot light, so you_______worry about its weight.

A．must

B．may

C．can't

D．needn't

2 . I guess this book ______ be Mary’s, but I’m not sure.

A．must

B．mustn’t

C．may

D．can

3 . In order to make our dreams come true, we _______ work hard.

A．must

B．can

C．need

D．may

4 . —Mom,_____I hang out with Susan now?
—No,you_____.It’s dangerous for two girls to be outside at night.

A．could;can’t

B．could;needn’t

C．should;can’t

D．must;couldn’t

5 . Both drivers and passengers         wear seat belts while their cars are running on the highway.

A．must

B．can

C．may

D．need

6 . It is very important that we          be honest about what we do not know.

A．need

B．will

C．must

D．can

7 . —________ you leave now? You only arrived an hour ago!
—Sorry, but so much homework is waiting for me.

A．Must

B．May

C．Can

D．Might

8 . 用方框中单词的适当形式完成下列句子，每个单词只能使用一次。

depress,        innovator,        official,        special            system,          react,             qualify

1. The government ________ announced the news to the reporters.
2. The first ________ of most participants to the experiment is fear.
3. Previous teaching experience is a necessary ________ for this job.
4. Despite the ________ result, Jenny didn’t give up and was determined to try again.
5. We must constantly ________ to keep up with the fast development of high technology.
6. Keep studying, and you can become an expert or a (an) _________ in something one day.
7. We are amazed at her ________ approach to the problem, which has been a fixed and efficient way for many years.

9 . 选词填空

pull one’s weight;   mistake...for;   moreover;   in a mess;   establish; break down;   devote;   take into account;   apologise;   affect have a great effect on;   urge;   criticize;   weave;   adopt

1. It was a struggle for him to finish the experiment, with the room ________ after he finished it.
2. Apple has given in to intense pressure from Chinese state media about its customer service practices, ________ to consumers in its second-largest market.
3. Bob has never ________ and we all have to work harder to make up for his laziness.
4. I’d ________ his reputation with other farmers and business people in the community, and then make a decision about whether or not to approve a loan.
5. What you described is not true. You must ________ your imagination ________ your memory.
6. If George keeps on working so hard, he’ll ________ sooner or later.
7. The company will ________ this safety net to defend the most widespread internet worms.
8. The business manager ________ me just now for not finishing the work in time.
9. I don’t want to go skating and, ________, the ice in the river is too thin.
10. A technology ________ various aspects in our life, ranging from education to medicine, and so on.
11. She will never allow personal problems ________ her performance at work.
12. Parents should actively________ their children to take advantage of the opportunity to join sports teams.
13. China ________ economic relations with other nations since President Xi Jinping visited 22 countries last year.
14. ________ the teacher’s advice, the boy solved the problem easily.
15. ________ himself to his research work, the professor cared little about any other thing.

10 . 面临气候变化带来的多重挑战，所有相关各方应保持联系，加强合作，共同应对由此产生的对生活方方面面的影响。 (contact) (汉译英)