b)before表示时间,意为“在……以前”。例如:before liberation the day before yesterday c)by与before的区别在于,by短语表示时间,强调“终止点”,而before短语表示时间,强调“起始点”。例如:Your son will be all right by suppertime. 句中的by suppertime表示从...
This classroom is not as/so large as that one。 这间教室不如那间大。 He doesn’t run as/so fast as Tom。 他跑得不如汤姆快。 2as soon as 一……就…… 用来引导时间状语从句。若主句是一般将来时,从句要用一般现在时。例如: I’ll tell him the plan as soon ...
Until 1954 it was thought that no man could run one mile in less than four minutes. As years 36 ,the record came closer and closer to four minutes 36.A.passed along B.passed down C.went by D.went over go for 主张 go for a walk 散步 ...
However, experts usually recommend that people apply sunscreen 20-30 minutes before sun exposure to allow time for it to absorb into the skin.然而，专家通常建议人们在日晒前...
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