Question

15．我認為他這次考試不會取得好成績，因為他沒有準備好．
Idon't think he can get a good grade in this exam becausehe isn't ready for it．．

Answer 1

分析 don't think  he can get a good grade …h(huán)e isn't ready for it．

解答 答案：don't think  he can get a good grade …h(huán)e isn't ready for it．表達的客觀事實用一般現在時，我認為I think，他不會取得好成績he can't get a good grade，作為think 的賓語，故將否定轉移到主句，故don't think  he can get a good grade，準備be ready for，主語he，故is，加上not構成否定，故答案是don't think  he can get a good grade …h(huán)e isn't ready for it．

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．