1、Unit4 Astronomy: the science of the stars-grammar素材主语从句三要点寻规找矩 请观察下列句子，注意划线部分句子的意义及用法。1. What surprised me most was that the little girl could play the violin so well. 2. Who will go to the concert is not known.3. That she was chosen made us very happy.4. Whether she will come or not is still a ques
2、tion.5. Which book they will choose is still unknown.6. When we shall hold our sports meet is not decided. 7. Its strange that he knows nothing about it.8. It is a pity that she has made such a mistake.9. It is said that President Jingo will visit our school next week. 小结归纳 (一)语序 主语从句使用陈述语序，其通常结构为“引
3、导词 + 主语 + 谓语 + 其他成分”；但当连接代词同时充当从句主语时，其结构为“连接代词 + 谓语 + 其他成分”，如句1、2。 (二)引导词 that引导主语从句时无词义，也不充当任何成分，但通常不可以省略，如句3； whether引导主语从句时意为“是否”，通常不能用if来代替,如句4； 可以引导主语从句的连接代词主要有：who, whom, whose, what, which, whatever, whoever等，如句5； 可以引导主语从句的连接副词主要有：where, when, how, why等，如句6。 (三)常见句型 有时为避免句子头重脚轻，常用it作形式主语，代替主语
4、从句放在句首，而把主语从句置于句末。常用句型如下： It + be + 形容词 + that 从句， 如句7; It + be + 名词 + that 从句， 如句8; It + be + 动词的过去分词 + that 从句， 如句9。即学即用I. 用适当的词填空，使句子意思完整。1. _ he didnt attend the meeting yesterday wasnt quite clear.2. The Foreign Minister said, “It is our hope _ the two sides will work towards peace.” 3. _ team
5、will win the match is still unknown.4. _ comes to the party will receive a present.5. _ Mary has left is still a question. 6. Its reported _ three people were killed in the accident and five were hurt badly.7. _ he solved the problem successfully interested all of us.8. We usually think _ we cant ge
6、t seems better than what we have. 9. It is a fact _ English is being accepted as an international language.10. _ is to be sent there to solve the problem hasnt been decided.II. 下列各句中均有一处错误，请改正。1. That the old mans son wanted to know was where the gold had been hidden. 2. It is reported when China ha
7、s successfully sent Shenzhou VI spaceship into space.3. If he can finish his task on time is of great importance. 4. Whether the 2008 Olympic Games will be held in Beijing excited the whole nation.5. After Yang Liwei succeeded in circling the earth, which our astronauts desire to do is walk in space
8、.6. Whatever leaves the room last ought to turn off the lights.7. Why they will solve the serious problem today has not been decided.8. When will win the English competition is still a problem.9. How our spring sports meet will be held or not this week is not known yet.10. Its strange when he should have gone away without telling us.Key:I 1. Why 2. that 3. Which 4. Whoever5. Whether 6. that 7. How 8. what 9. that 10. WhoII 1. That What2. when that 3. If Whether 4. Whether That 5. which what 6. Whatever Whoever7. Why How 8. When Who 9. How Whether 10. when tha