• 2. or 用在选择疑问句中,翻译成“或者”.
• • • • 1) 2) 3.) 4).
Shall we meet this afternoon or tomorrow ? Is it a pen or a pencil ?. Which is bigger , the sun or the earth ? Are you going to Beijing by bus or by plane
浅谈or 和 and的用法
1. and 用于肯定句中，or用于否定句，代 替“and” 。 1) They didn’t sing or dance . They can sing and dance . 2)They didn’t speak loudly or clearly. They spoke loudly and clearly. 3) She was not clever or beautiful . She was clever and beautiful. 4. We haven’t got much tea or coffee.
• 6) People can’t live without air _____water . • 7) Jack worked hare at Math , _____ he came first in the Exams • 8) Your classroom is clean ______tidy . • 9 ) There is no air _______water on the moon . • 10) He never smokes _____drinks .
• • • •
11) Put on your coat on , _______you’ll be cold . 12) Work hard , ______you won’t succeed. 13) Work hard , _______ you will succeed. 14) Who’s the youngest , Rose ,Helen,____ Betty .
• 3. or 翻译成“否则”
1)Hurry up , or you’ll be late . • 2)work hard ,or you won’t succeed
• 4. and 可以表示 两个句子的 “承接，联接” 关系。 • Lucy worked hard at English ,and she came first in the Exams .
• 15. Hurry up , ______you’ll be late for school .
1) He usually goes to school by bus _____by bike ? 2) Be careful , _____you will hurt yourself. 3) Come on !_____ you will win the match . 4) We had no water ______food at that time . 5) The Summer Palace is large ____beautiful .