高一牛津英語必修1全冊教案
4. a. eats b. dieting
part a2 (page 94)
1. are popular among 2. work out 3. be ashamed of 4. is dying to
5. recover from 6. is going on a diet 7. follow my advice
5. homework
discussion: which method would you prefer, if you are to lose weight? what are the advantages and disadvantages?
(going on a diet;
exercising in a gym;
receiving surgical treatment;
taking weight-loss pills
grammar and usage introduction to non-restrictive attributive clauses
step 1: non-restrictive attributive clause
a non-restrictive attributive clause is used to add extra information to the main clause of a sentence. let’s see the formation of a non-restrictive attributive clause the occasion to use it.
1. please read the five example sentences in point 1 to find the similarities and the differences between the restrictive attributive clause and the non-restrictive attributive clause.
for reference:
these two kinds of attributive clauses are both used after a noun. but the non-restrictive clause is used to add extra information to the sentence, and there is usually a comma between the antecedent and the clause. the non-restrictive clause can be omitted without causing any confusion. but for a restrictive attributive clause, if it is omitted, the meaning of the whole sentence will not be so clear. for example, in the sentence ‘ we thought you were a person from whom we could expect good decisions’, the clause ‘from whom we could expect good decisions’ can’t be omitted. if it is omitted, we don’t know what the sentence means.
2. please read the tip box in this part and note that the relative pronoun that can’t be used to introduce a
non-restrictive attributive clause.
3. please read the example sentence in point 2 and tell me what which refers to in this sentence. (sometimes a non-restrictive attributive clause introduced by which can be used to refer to the whole main clause.)
4. after reading the two example sentences in point 3, you will know a non-restrictive attributive clause introduced by all / some of which / whom can express a complete or partial quantity. here which refers to the antecedent different types of exercises in the first sentence, and whom refers to the antecedent many people in the second sentence.
here are more sentences for you to compare:
the dress, which you can get at any shop, is popular this spring.
the dress which you want can be found at any shop.