人教版高中英語必修二《Cultural Heritage》Discovering Useful Structures PPT課件，共41頁。
Grammar
Look at the sentences below and underline the relative pronouns and adverbs.
After listening to the scientists who had studied the problem，and citizens who lived near the dam，the government turned to the United Nations for help.
Temples and other cultural sites were taken down piece by piece，and then moved and put back together again in a place where they were safe from the water.
定語從句
1 關系代詞和關系副詞
（1）關系代詞
指人：who，whom，that
指物：that，which
whose=the+n. +of which/whom
The man who is speaking at the meeting is an expert.在會議上發言的是一個專家。
The woman whom they wanted to visit is a teacher.他們想要拜訪的那位女士是一個老師。
Football is a game which is loved by many boys.足球是許多男孩子喜歡的活動。
The book is intended for the students whose native language is not English.
這本書是專門為母語不是英語的人設計的。
（2）關系副詞
when=on/in/at/during which
where=in/on/at/to which why=for which
This is the place where/in which I grew up. 這就是我長大的地方。
2 限制性定語從句與非限制性定語從句的區別
（1）作用不同
限制性定語從句是先行詞在意義上不可缺少的定語，不可去掉，否則主句意思不完整。非限制性定語從句對先行詞進行補充說明，可去掉，去掉后主句意思仍完整。
This is the best film（that）I have ever seen for years.
這是幾年來我看過的最好的一部電影。
She lost the match，which depressed her greatly.她輸了比賽，這使她很沮喪。
（2）形式不同
限制性定語從句與主句不用逗號隔開，非限制性定語從句用逗號與主句隔開。
（3）先行詞不同
大多數限制性和非限制性定語從句的先行詞往往為某一個詞或短語，而特殊情況下非限制性定語從句的先行詞也可為整個主句，此時非限制性定語從句常由 which 引導。
The two policemen were completely trusted，which in fact they were.
那兩個警察完全受到信任，事實上也確實如此。
（4）關系詞的使用情況不同
①that 不可用于引導非限制性定語從句。
②關系代詞 whom 在限制性定語從句中作賓語時可用 who 代替，但whom 在非限制性定語從句中作賓語時不可用 who 來代替。
③關系代詞的省略情況不同：關系代詞在限制性定語從句中作賓語時可省略，而非限制性定語從句的所有關系詞均不可省略。
He changed his mind，which made me very angry.他改變了主意，這使我很生氣。
3 關系代詞只用 that 不用 which
（1）當先行詞是 all，much，little，few，something，anything，everything，none，nothing 等不定代詞時。
Humans should take responsibility for something that they have done to the animals.
人類應該為他們對動物所做的事負責。
Is there anything that you want to buy in the shop?你在商店里有什么東西需要買嗎？
（2）當先行詞被 the only，the same，the very，the last，any，few，little，no，all 等限定詞修飾時。
This is the very book that I want. 這正是我想要的那本書。
（3）當先行詞被序數詞或形容詞最高級修飾時。
This is the most interesting story that I have ever read.這是我讀過的最有趣的故事。
（4）先行詞既包括人又包括物時。
I can well remember the persons and some pictures that I saw in the room.
我能清楚地記得我在那個房間所見到的人和一些照片。
（5）當主句是以 who 或 which 開頭的特殊疑問句時。
Who is the person that is standing at the gate?站在門口的那個人是誰？
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關鍵詞：Cultural Heritage PPT課件免費下載，.PPTX格式；
