Question

5．多數(shù)人認為中學生不應花太多時間玩電腦，否則，不僅損害視力而且有害健康．
Most of the peopledon't think middle school students should spend too much time playing computer games．Otherwise，it's bad not only for eyesight but also for health．

Answer 1

分析 don't think middle school students should spend too much time  playing．

解答 答案：don't think middle school students should spend too much time  playing．結合句意表達的是客觀事實用一般現(xiàn)在時，表示認為用think，后加賓語從句，從句表達的是中學生不應花太多時間玩電腦，主語 middle school students，應該should，后加not構成否定，故should not，花時間做某事spend+時間+doing sth，too much太多，修飾不可數(shù)名詞time，玩電腦play computer games，故從句 students should not spend too much time  playing，此時將從句的否定轉移到主句，主句主語Most of the people復數(shù)，借助于do構成否定，故答案是don't think middle school students should spend too much time  playing．

點評 將think，believe，suppose，expect，fancy，imagine等動詞后面賓語從句的否定詞轉移到主句中，即主句的謂語動詞用否定式，而從句的謂語動詞用肯定式．
　 I don't think I know you．我想我并不認識你．
　 I don't believe he will come．我相信他不回來．
注意：若謂語動詞為hope，賓語從句中的否定詞不能轉移．
　 I hope you weren't ill．我想你沒有生病吧．