1、Unit 3 A Healthy Life Sentence explanations请和你的同学一起认真分析下列句子，并补全所缺内容。这种学习方式能逐步提高你理解长难句的能力。1. I believed I was happier and more relaxed after having a cigarette, so I began to think that I could only feel good when I smoked. (P18)【分析】本句是一个由so连接的并列复合句；第一个分句中包含一个省略引导词that的宾语从句，作believed的宾语；after having
2、a cigarette作时间状语，相当于状语从句_；第二个分句中that引导宾语从句，作think的宾语；宾语从句中又包含一个由when引导的时间状语从句。2. I didnt know, for example, that it could do terrible damage to your heart and lungs or that it was more difficult for smoking couples to become pregnant. (P18)【分析】本句的主句是I didnt know，从句包含两个由or连接的that引导的宾语从句； 引导第二个或以上的宾语从
3、句的引导词that一般不可省略；在第二个宾语从句中，it作形式主语，真正的主语是_。3. However, what I did know was that my girlfriend thought I smelt terrible. (P18)【分析】本句中，what引导主语从句，that引导表语从句；主语从句中谓语动词know前的did起强调作用，可以翻译为“确实，的确”；I smelt terrible为省略了引导词that的宾语从句，作thought的宾语。【仿写】我确实认为杰克表现得很差。 I _ Jack has behaved badly.4. When I was taken
4、 off the school football team because I was unfit, I knew it was time to quit smoking. (P18)【分析】本句的主句为I knew it was time to quit smoking；I knew后跟的是省略了引导词that的宾语从句；it is / was time to do sth. 做某事的时候到了；when引导的时间状语从句中又包含一个由because引导的原因状语从句。【仿写】艾丽斯，该做作业了。 Alice, _.答案1.【分析】after I had a cigarette2.【分析】for smoking couples to become pregnant3.【仿写】do think4.【仿写】its time to do your homework
