來(lái)源:網(wǎng)絡(luò)資源 作者:中考網(wǎng)整理 2019-08-19 22:52:35
中考英語(yǔ)知識(shí)點(diǎn):and與or的比較
1) 并列結(jié)構(gòu)中,or通常用于否定句,and用于肯定句。
2) 但有時(shí)and 也可用于否定句。請(qǐng)注意其不同特點(diǎn):
There is no air or water in the moon.
There is no air and no water on the moon.
在否定中并列結(jié)構(gòu)用or 連接,但含有兩個(gè)否定詞的句子實(shí)際被看作是肯定結(jié)構(gòu),因此要用and。
典型例題
---I don't like chicken ___ fish.
---I don't like chicken, ___ I like fish very much.
A. and; and B. and; but C. or; but D. or;and
答案C。否定句中表并列用or, but 表轉(zhuǎn)折。
判斷改錯(cuò):
(錯(cuò)) We will die without air and water.
(錯(cuò)) We can't live without air or water.
(對(duì)) We will die without air or water.
(對(duì)) We can't live without air and water.
3 )表示選擇的并列結(jié)構(gòu)
(1) or 意思為"否則"。
I must work hard, or I'll fail in the exam.
(2) either…or 意思為"或者……或者……"。注意謂語(yǔ)動(dòng)詞采用就近原則。
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