单元检测-Unit2 Topic3话题检测（一）
一、单项选择
1.It’s our duty ______ our environment ________. A. keeping, cleaned B. to keep, being cleaned C. to keep, clean D. keeping, cleaned
2.The Olympic Rings _______ the five parts of the world. A. stand on B. stand for C. stand D. standing
3._______ that you and everybody here are safe. A. Be sure B. Make sure C. It’s sure D. I’m afraid
4.________ you eat, ______ you will be. A. The more, the fatter B. The much, the fatter C. The much, the fat D. More, fatter
5.We must tell people _____ important it is to protect our lakes , rivers, seas and oceans. A. what B. very C. how D. too
6.Jim is fond of ______ A. sing B. singing C. to sing D. sings
7.We go to the hill to plant tees _____ Tree Planting Day, March 12. A. on B. in C. at D. with
8.The radio says______ will get warmer in the afternoon. A. the sun B. the rain C. the cloud D. the weather
9.I'm afraid I’ll come to the party ______ late.