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发表于 2016-7-11 22:49:41
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注意:
(1) yet和still是连接副词,也叫半连接词。它们是副词。又起连接作用,但不如and, but, or等强,用了yet或still,前面还可加and或but。
He is tired, (but) still he will make another experiment. 他很累,但他仍然要做另一个实验。
I got up very early, (and) yet I failed to catch the first bus. 我起得很早,然而还是没有赶上头班车。
(2) while意义相当于at the same time表示相反和对照,常用来连接两个意义对立的分句。
I like football, while my sister likes basketball. 我喜欢足球,而我姐姐喜欢篮球。
when = and then, just then或at that time, during the time.
We were ready to rush away, when the snake moved. 我们正准备离开,这时蛇移动了。
while和when作为并列连词使用时常是放在第二个分句前边,并有逗号和第一分句隔开。
(3) for表示附加或推断的理由、原因。therefore比so更正式,and so比较口语化。
专项训练:
1.Some are reading magazines,______ others are playing cards.
A.or B.for C.so D.while
2.We must get up early tomorrow.______ we’ll miss the first bus to the Great Wall.
A.so B.or C.but D.however
3.——I don’t like chicken ______ fish.
——I don’t like chicken,______ I like fish very much.
A.and, and B.and, but C.or, and D.or, but
4.We want ______ high speed ______ good quality.
A.both, and B.either, or C.neither, nor D.not, but also
5.In spring it is ______ hot ______ cold here.
A.both, and B.either, or C.neither, nor D.not only, but
6.______ does he writes well, ______ he also speaks well.
A.Not only, but B.Not, but C.Either, or D.Both, and
7.Use your head, ______ you’ll work it out.
A.so B.or C.and D.for
8.I want to buy the jacket, ______ I have not enough money with me.
A.but B.so C.or D.for
9.______ you ______ I am going to help Tom.
A. Either, or B. Not, but C.Not only, and D.Each, and
10.The soldier was wounded, ______ he pushed on.
A.for B.and C.so D.yet
1.D 2.B 3.D 4.A 5.C 6.A 7.C 8.A 9.A 10.D |
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