牛津译林版高中英语必修三unit2languagegrammarandusage课件

牛津译林版高中英语必修三unit2languagegrammarandusage课件内容摘要：

(correct) Whether English will continue changing in the future is easy to answer. c. (preferable) It depends on the style of writing when we use certain words. = (correct) When we use certain words depends on the style of writing. a. (preferable) It is hard to master a foreign language. = (correct) To master a foreign language is hard. b. (preferable) It is important to know how to use a puter. = (correct) To know how to use a puter is important. B. when the subject is a toinfinitive. C. when the subject is a ving form. a. ( preferable) Smoking is difficult to stop. = (correct) It is difficult to stop smoking. b. (preferable) Travelling to Beijing takes up a lot of my time. = (correct) It takes a lot of my time travelling to Beijing. We usually use the empty subject it with a clause or toinfinitive (preferable), but with the ving form we prefer the real subject at the beginning. Tip 2. It can also be used before seem, appear, happen, chance, turn out and prove as the empty subject of a sentence. a. It seems that he speaks two languages. = He seems to speak two languages. b. It happens that my new neighbour es from my home town. = My new neighbor happens to e from my home town. : 1. 定语从句是 先行词的修饰语 ，它不涉及先行词的具体内容。 定语从句中 that不但起连接作用，而且在定语从句中 充当一个句子成分 ，充当从句的宾语成分时可省略。 2. 同位语从句对 中心词的内容作进一步的解释和说明 ，表明中心词的具体内容。 引导同位语从句的 that在同位语从句中 不做任何成分 ,只起连接作用 ,无具体含义 ,且不可省略 . Other important cases of noun clauses: 1. We expressed the hope that they had expressed. 2. We expressed the hope that they would e to C。