不但   而且 not only ，but also

不但你，而且你父亲也要来。 Not only you but also your father is coming   

珍妮不但漂亮，而且人非常好。  Jane is not only beautiful but also kind   

 not only ，but also ，担任主语时，此句型的谓语动词随 but also 后面的部分而定。  

 not only， but also， 连接对等的词或词组 该句型可以和“ as well as ”互换，但注意汉语翻译。  

 不但你，而且你父亲也要来。  Your father as well as you is coming  

 as well as 的句子谓语动词随它前面的词“ Your father ”而定，所以用 is coming   

珍妮不但漂亮，而且为人很好。  Jane is kind as well as beautiful   

我想他喜欢足球。  I think that he likes football

 I think he likes football   

 that 引导名词性从句（主语从句、表语从句、宾语从句和同位语从句）和定语从句。

that 在宾语从句、间接引语中可以省略，主句与从句时态一致。  

我想他累了。  I think that he is tired

  I thought that he was tired

 I think he is tired

  I thought he was tired

要特别注意主句与从句时态的呼应。如果主句是过去时，从句一律改为过去的时态，如果主句的动词是 think ， believe ；如果主句的主语是第一人称，变为否定句时，要否定主句，译成中文时，则否定从句。  

我相信，你会离开这儿的。  I believe you will leave here   

 我相信，你不会离开这儿的。  I don't believe you will leave here  

我希望   I hope that  

我认为   I think that  

我说   I say that  

我知道  I know that  

我发现   I find that  

恐怕   be afraid that  

确认   be sure that  

很高兴   be glad that     be happy that

以上的 that 都可以省略  

 他到达那儿以后，他会给你打电话。  When he arrives there he will call you  

 when ， while ， till ， until ， since ， after ， before ， as soon as 等是连接时间状语从句的连词。在时间状语从句中要特别注意时态的搭配：当主句是将来时，从句要用一般现在时。

while 所引导的从句的谓语动词只能是延续性的，不能用点动词。（如 begin ， stop ）  

当我到那儿时，天正在下雨。  When I arrived there ， it was raining   

 我进屋时，李明正在和她谈话。  I entered the room while Li Ming was talking with her

 I entered the room when Li Ming was talking with her

 直到我做完作业，我才上床睡觉。  I didn't go to sleep until I finished my homework

 I didn't go to sleep till I finished my homework  

老师教给我们如何做这工作之后，我们才会开始做。  We won't work until our teacher teaches us how to do it   We won't work till our teacher teaches us how to do it  

 战争结束后他来到了中国。  He came to China after the war was over  

 战争结束前，他已经在中国了。  He had been in China before the war was over  

战争结束后，他来到中国。  The war was over before he came to China  

 自从两年前我开始学习英语以来，我已经学习了两千多个英语单词了。  I have learned more than two thousand English words since I began learning English two years ago  

since 引导的是一个过去时的句子，说明自当时以来到现在，主句一般要用现在完成时。  

我一得到足够的钱，就买它。  as soon as I get enough money ， I'll buy it   

因为，连接原因状语从句   because

 因为她病了，所以她没去那儿。  She didn't go there ， because she was ill  

回答 Why 问句时，只能用 because ，不能用 for 或 as    

 你为什么迟到？  Why are you late ？

 因为在我来这儿的路上，遇到了车祸。  Because I met a traffic accident on my way here  

汉语中，我们经常说因为 所以，但在英文中有了 because ，就不能再用 so 。  

 因为他累了，所以他不能走到那儿了。 Because he was tired ，he couldn't walk there   

 He was tired， so he couldn't walk there   

因为他累了，所以他不能走到那儿了。 Because he was tired he couldn't walk there  

如果不下雨，我们就去公园。 If it doesn't rain ， we'll go to the park   

虽然我很累，可是我仍然努力地工作。  Though I was tired ， I still worked hard   

尽管太阳高照，却不很暖和。 Although the sun was shining it wasn't very warm