状元之路精品教辅 如果要对前句的内容进行否定,则可采用下面两种结构: (1)don't+ believe/think/expect/suppose+so,例如: -he will fail in the entrance exam -No,Idon't believe so. (=I don't believe he will fail in the entrance exam. (2)believe, think, expect suppose hope hear s be afraid+noto例如: Do you think it's going to rain over the weekend? .i believe not i wonder if he met with the accident -I think not and I hope not 林教学资源网 第11页共42 英语
第11页 共 42 页 如果要对前句的内容进行否定，则可采用下面两种结构： (1)don't＋believe/think/expect/suppose＋so，例如： —He will fail in the entrance exam. —No，I don't believe so. (＝I don't believe he will fail in the entrance exam.) (2)believe，think，expect，suppose，hope，hear，be afraid＋not。例如： —Do you think it's going to rain over the weekend? —I believe not. —I wonder if he met with the accident. —I think not and I hope not
状元之路精品教辅 特别提醒:上述动词或短语中 believe, think, expect, suppose等可以 有两种否定形式,而有些动词或短语只能有一种否定形式。例如: I hope not(不能说:Idon' t hope so, I' m afraid not.(不能说: I'mnot afraid so.) 此外,初学者还容易出现下列典型错误: -Do you think we'lI have terrible weather? No,Idon' t believe it.(替代上面的分句,it应改为s0) Willhe agree with us? - Yes , Ithink( think后应接分句替代词so,否则意思不明) -Are you going to watch the game? -I' m sure so, forit promises to be a close one.(应将s0改为Iwi,因为 be sure的语气并不委婉,其后不能接分句替代词。) 林教学资源网 第12页共42页 英语
第12页 共 42 页 特别提醒：上述动词或短语中believe，think，expect，suppose 等可以 有两种否定形式，而有些动词或短语只能有一种否定形式。例如： I hope not.(不能说：I don't hope so.) I'm afraid not.(不能说：I'm not afraid so.) 此外，初学者还容易出现下列典型错误： —Do you think we'll have terrible weather? —No，I_don't_believe_it.(替代上面的分句，it 应改为 so) —Will he agree with us? —Yes，I think.(think 后应接分句替代词so，否则意思不明) —Are you going to watch the game? —I'm sure so，for it promises to be a close one.(应将so 改为I will，因为 be sure 的语气并不委婉，其后不能接分句替代词。)
状元之路精品教辅 另外,so和not还可以用在i后面,以避免重复前文。例如 -Are you free this evening? If so ,come and join us in the danc(不说 If you are free.) -l may join you in the dance if not I'l telephone you. 林教学资源网 第13页共42页 英语
第13页 共 42 页 另外，so 和 not 还可以用在if后面，以避免重复前文。例如： —Are you free this evening? If so，come and join us in the dance.(不说 If you are free...) —I may join you in the dance.If not，I'll telephone you
状元之路精品教辅 三、ⅱ的用法 1·ⅱt做“虚主语”时可指:时间、天气丶温度丶距离、环境等。例如: It often snows in winter. It's four weeks since he left 也可用在下面的结构中: It took us an hour to repair it.(前面的那个敢充当的是形式主语) Idon' t think it a good idea.it充当的是形式宾语) It' s in the hall that we ll have a meeting.(在强调结构中ⅱt是先行代词) It looks as if it is going to rain(前面的那个ⅱt句法作用较为模糊) 林教学资源网 第14页共42页 英语
第14页 共 42 页 三、it 的用法 1．it做“虚主语”时可指：时间、天气、温度、距离、环境等。例如： It often snows in winter. It's four weeks since he left. 也可用在下面的结构中： It took us an hour to repair it.(前面的那个it 充当的是形式主语) I don't think it a good idea.(it 充当的是形式宾语) It's in the hall that we'll have a meeting.(在强调结构中it 是先行代词) It looks as if it is going to rain.(前面的那个it 句法作用较为模糊)