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第十节 并列连词和状语从句 (对应学生用书第265页) 考点一 并列连词的用法 1．表递进或顺承关系：and，not only ...but also ...，not ...but ...等。 She not only plays well，but also writes music. 她不仅演奏得很好，而且还会作曲。 2．表选择关系：or，either ...or ...等。 Either you leave this house or I'll call the police. 你要不离开这座房子，我就去叫警察来。 3．表转折关系：but，yet等。 Several people were passing but nobody offered to help.有几个人擦肩而过，却没有人提供帮助。 4．表因果关系：so，for等。 The shops were closed so I didn't get any milk. 商店都关门了，因此我没买到牛奶。 5．when作并列连词时意为“就在这个时候”。 We were having a meeting when someone broke in. 我们正在开会，这时有人闯了进来。 6．while作并列连词时意为“而，却”，表示对比。 Some men were rich, while others are poor. 一些人富有，而其他人贫穷。 考点二 时间状语从句 1．when，while和as (1)when从句的动作和主句的动作可以同时发生，也可以先后发生，从句谓语动词为延续性动词或非延续性动词。 | 
