:高二英语下学期unit19练习题

一、单项选择
1. He denied _____ these cameras before.
A. having seen      B. to see        C. see          D. to be seen
2. One day you’ll _____ this foolish behavior.
A. pay            B. pay for       C. pay back      D. pay off
3. In the market, the merchants _____ and joked with the customers.
A. debated         B. bargained      C. quarreled      D. argued
4. The child was abandoned in the forest, where he _____ wild beasts.
A. was at the mercy of              B. have mercy on
C. show mercy to                 D. was threw on the mercy of
5. John tore _____ his test paper so that his mother wouldn’t see his low grade.
A. off            B. away         C. up          D. down
6. The police _____ him of stealing a car.
A. warned         B. charged       C. accused      D. threatened
7. The museum is _____.
A. worth to be visited               B. worthy being visited
C. worthy to be visited              D. worth being visited
8. Bobby is going _____ his homework very seriously tonight.
A. against         B. with         C. about        D. after
9. The teacher told the pupils that salt water _____ at a lower temperature than fresh water.
A. froze          B. would freeze   C. freeze        D. freezes
10. The Jackson won’t contribute to the Red Cross unless you _____.
A. go down on your knees           B. stand on your own feet
C. are on your last legs              D. keep your head
11. He has declared _____ building a new bridge.
A. about          B. against        C. to           D. in
12. The rain was heavy, and _____ the land was flooded.
A. however        B. whatever      C. but          D. consequently
13. You may borrow the book, _____ you don’t lend it to anyone else.
A. in good condition                B. on condition that   
C. in no condition                 D. in condition
14. When I turned to the person _____ next to me, I recognized that he was my schoolmate.
A. seating         B. seated        C. sit           D. sat