:期中检测卷（一）
一、单项选择（15分）
（ ）1.Sceintists are trying their best to ______ ways to treat the terrible disease called H7N9.
A. come up with B. look forward to
C. talk about D. give up
( )2.—Tim played the guitar very well in the school talent show. –I think so. He practices ______it every day.
A. play B. playing C. to play D. plays
( )3. The math problem is so hard. I really don’t know ______.
A. how to do it B. how to do C. what to do it D. what to do
( ) 4.—A nice day today, isn’t? –Yes. ______ go for a picnic and relax ourselves?
A. Would you like B. Why not C. What about D. Why don’t
( ) 5.—Susan, what are the advantages of MP5 players?
–Mom, they are smaller and lighter ______ they can be carried very easily.
A. unless B. if C. until D. so that
( )6.You’d better _____ here _____ the heavy rain.
A. not to leave; because B. not leave; because
C. not leave; because of
