when ?
[误] Id cook you nice meal when youd come home in the evening.?
[正] Id cook you nice meal when you came home in the evening.?
[析] 在when引导的状语从句中,要用一般时表示将来,即主句中是将来时,从句中应用一般现在时,如主句中是过去将来时,从句中应用一般过去时。如: Ill be back when you come back from school.?
[误] When in the second grade, his mother bought him a bike.?
[正] When Tom was in the second grade, his mother bought him a bike.?
[析] 复合句中只有当主句的主语与从句的主语一致的情况下,才有可能省略,如: When young he had to work all day.?
[误] Well go to the park when it doesnt rain tomorrow. ?
[正] Well go to the park if it doesnt rain tomorrow.?
[析] if用来表示不能肯定的事如果发生会如何;而when用来表示肯定会发生或很可能会发生的事情,如: Ill see you in September when I come back.? [误] I dont know when he comes home tomorrow.?
[正] I dont know when he will come home tomorrow.?
[析] when所引出的宾语从句如果是表示将来的动作要用将来时,而不是像时间状语从句中用一般时表示将来。
where ?
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