题目内容
--- Is Lucy knocking at the door?
--- No. It ______ be Lucy. She is in America now.
A. may not B. mustn’t
C. can’t D. shouldn’t
C
【解析】
试题分析：句意：是露西在敲门吗？不是，肯定不是露西，她现在在美国。must,can(could),may(maight) 可以表示猜测，must 表示肯定猜测，用于肯定句，肯定……，一定……；can’t,表示否定猜测，肯定不……，另外can(could),may(maight)，表示可能性猜测，可能···。根据后句她在美国，可知是否定猜测，故选C。
考点：考查情态动词的用法。
Andy was born in China 17 years ago. In 2007, she went to the USA with her family. As a high school student, she has found many differences between Chinese and Americans:
About money
Americans like to spend more than they have, so many of them are always in debt(欠债). But Chinese usually spend less than they have, so many of them always have money left in the bank.
The American kids themselves make their own money. Most Chinese kids always ask their parents for money.
About education
Many American students have less homework to do while many Chinese students have much.
Many American girls take part in sports, dancing and singing groups while many Chinese girls take part in study groups.
Many American parents think it is unnecessary to send their children to an expensive school. It’s different in China. Many Chinese parents would try their best to send their children to expensive schools though their family isn’t rich enough.
About friends
Most American parents let their sons or daughters make friends by themselves. They never ask them about their friends while Chinese parents are usually interested in knowing more about their children’s friends, and usually stop them from staying out too late with friends.
1. between Chinese and Americans | ||
| Chinese | Americans |
Money | Chinese usually have some money left in the bank2. they spend less money than they have. | Many Americans usually borrow money from the banks because they 3. more than they have. |
Chinese children get money from their4. . | Children usually make money by 5. . | |
Education | Parents usually do their 6. to send their children to study in expensive schools. | Many parents think it isn’t 7. to send their children to an expensive school. |
Chinese girls join in 8. groups. | Many girls exercise, dance and 9. together. | |
Friends | Parents are usually10. in knowing more about their children’s friends. | Most parents never pay attention to their children’s friends. |