and 和 or的用法.ppt

2.?or 用在选择疑问句中,翻译成“或者”. 1)?Shall we meet this afternoon or tomorrow ? 2)?Is it a pen or a pencil ?. 3.) Which is bigger , the sun or the earth ? 4). Are you going to Beijing by bus or by plane? 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 . 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 . 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 . 15. Hurry up , ______you’ll be late for school . * 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. *