period three word power & grammar and usage
ⅰ.语境填词
1．when she is offered ice-cream or pie，she always chooses the ________ (前者)．
2．with you ________ (支持) me，i’ll stick to my opinion.
3．business leaders gave an ________(热情的) welcome to the proposal.
4．the exact origin of the universe remains a ________(谜)．
5．it is said that the pirates buried their ________ (金银财宝) on this island.
6．similar trends may be ________ (看到) in most modern societies.
7．what have you been doing ________ (最近)?
8．do you believe that life ________ (存在) on mars?
ⅱ.选词填空
1．children spent hours watching the planes ________________ and land.
2．they got ________________ each other among the crowd.
3．i ________________ english when i was in london.
4．i often ________________ my younger brother soon after i left hometown.
5．i’ve been here for three months，and ______________ i’ve enjoyed it.
6．the concert ________________ the national anthem.
7．three students were chosen to ________________ the experiment.
8．________________ that you don’t get run over when you cross the street.
ⅲ.同义词辨析
1．用separate...from/divide...into的适当形式填空
(1)the students in the class were ________________ four groups to have a discussion.
(2)it’s not difficult to ________ a butterfly ________ a moth.
