专题十 连词和状语从句,一、并列连词,【温馨提示】 (1)两对“冤家对头”不能同时出现在一个句子中: although/though与but; because与so。 (2)在通常情况下, 在肯定句中用and, 相应的否定句中则用or。在否定句中如果用and需要重复否定词。例如: He has brothers and sisters. 他有兄弟姐妹。 He has no brothers or sisters. =He has no brothers and no sisters. 他既没有兄弟也没有姐妹。,【即学活用】 1. You may go to the park this evening, _you must finish your homework first. 2. Practice more, _youll learn English better. 3. Dont run in the classroom, _you may hurt yourself. 4. We didnt enjoy the day_the weather was so bad. 5. My brother didnt work hard, _he failed in the final exam. 答案: 1. but 2. and 3. or 4. because 5. so,二、从属连词 1. 引导宾语从句的从属连词that, if(whether)。例如: I know that the puppy is very clever. 我知道那条小狗很聪明。 We dont know if/whether it will rain tomorrow. 我们不知道明天是否下雨。,2. 引导状语从句的从属连词。,【即学活用】 1. We will have a picnic_it doesnt rain tomorrow. 2. Its too late. I have to go now. Oh, its raining heavily outside. Youd better wait here_it stops. 3. What do you think of your Junior Middle School life? I think it is colorful, _I am always busy. 4. Betty hasnt got any hobbies_you call sleeping a hobby. 5. _dinner, everyone helped wash the dishes. 答案: 1. if 2. until 3. although/though 4. unless 5. After,三、状语从句,【即学活用】 1. The Silk Road was_long that it passed through many countries. 2. Im waiting for my friend. If she_(not, come), Ill go shopping alone. 3. Next month were going somewhere interesting as soon as the holiday_(begin). 答案: 1. so 2. doesnt come 3. begins,