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课件网) Unit 6 Unit 6 At one with nature 1. To master attributive clauses with prepositions and relative pronouns 2. To use this type of attributive clauses correctly 3. To learn words and expressions about geographical features Attributive clauses (3) Look at the sentences from the reading passage and answer the questions. a. Building the terraces therefore meant that they could increase the areas in which they could grow rice. b. Although modern technology could help produce more crops, these terraces still mean a lot to the local people for whom traditions hold much value. 1. What do “which” and “whom” refer to in each sentence “Which” refers to “the areas” in sentence (a), and “whom” refers to “ the local people” in sentence (b). 2. Why do we use prepositions before “which” and “whom” Because “which” and “whom” serve as the object of the action phrases that end with a preposition. 3. In sentence (a), can we replace “in which” with “where” without changing the meaning Yes. Compare them with the following sentences and answer the questions. c …they could increase the areas. They could grow crops in these areas. d …these terraces still mean a lot to the local people. Traditions hold much value for them. Sentences (a) and (b) both contain a clause defining a noun in the sentence. Sentences (c) and (d) are constructed with a pair of simple sentences, with one defining a noun in the other sentences in each pair. 4. What is the difference between the two groups of sentences Because there is a closer link and connection between the item and the clause defining it in sentences (a) and (b). It will also make the passage clearer, and create an emphatic effect on the objects being defined. 5. Why do the author choose to use sentences (a) and (b) in the reading passage “介词+关系代词”引导的定语从句 在定语从句中，当关系代词作动词短语或介词的宾语时，为了使关系代词与先行词的关系更加密切，通常用“介词+关系代词”引导定语从句。 1. 若介词放在关系代词前，关系代词指物时只能用which，关系代词指人时只能用whom。 eg The man by whom the thief was caught was a good policeman. This is the reason for which I was praised by my chemistry teacher. 2. “介词+关系代词”中的介词根据从句中谓语动词的搭配习惯、先行词与介词的搭配习惯或句子要表达的意思来选用。 eg He is the person from whom I learn a lot. (learn from) Testing is still the usual means by which students’ progress is measured. (be measured by) Air, without which man can’t live, is really important. 3. 当定语从句中的谓语动词是带介词的短语动词时，短语动词中的介词一般不能前置。 判断正(T)误(F) ( ) 1) The baby whom the nurse is looking after is very healthy. ( ) 2) The baby after whom the nurse is looking is very healthy. T F 4. 引导定语从句的“介词+ which”有时也可以用关系副词 来代替。 eg Beijing is the city, in which (= where) he has lived many years. I remember the day on which (= when) I went abroad. The reason for which (= why) he didn ... ...
