英语自学网 发表于 2016-7-11 22:29:46

新概念二册语法精粹 一、一般现在时

  一、一般现在时:
       
       
                  1.构成:使用动词原形,第三人称单数须有变化。
       
       
                  (1)直接加“s”,works,takes
       
       
                  (2)以辅音加“y”结尾,变“y”为“i”,再加“es”
       
       
                  carry → carries
       
       
                  (3)以“o, s, x, ch, sh”结尾的动词加“es”
       
       
                  goes dresses watches brushes
       
       
                  2.功能:
       
       
                  (1)表现在的事实、状态或动作:
       
       
                  eg: ►. Birds fly.
       
       
                  ►. She loves music.
       
       
                  ►. Mary's parents get up very early.
       
       
                  (2)表习惯性动作或职业,常与often,sometimes,usually,always,every week,seldom,occasionally,frequently等时间副词连用。
       
       
                  eg: ►. I always take a walk after supper.
       
       
                  ►. She writes to me very often.
       
       
                  ►. Tom and his girlfriend go out to take a picnic occasionally.
       
       
                  (3)表客观真理,格言警句或事实:
       
       
                  ►. The earth moves round the sun.
       
       
                  ►. The sun rises in the east and sets in the west.
       
       
                  ►. Two and two makes four.
       
       
                  ►. No man but errs. 人非圣贤,熟能无过。
       
       
                  (4)表将来:
       
       
                  A.在由when,after, before,as,as soon as,although,because,if,even if,in case,till,until,unless,
       
       
                  so long as,where,whatever,wherever 等引导的状语从句中用一般现在时表将来发生的动作。
       
       
                  (黄金重点,所有考试都不放过它!)
       
       
                  例如: ►. I'll tell her when shecomes tomorrow.
       
       
                  ►. Even ifit rains this afternoon, I'll meet you.
       
       
                  ►. Whatever happens, you should keep cool-headed. (不错的句型,背下!!)
       
       
                  ►. I'll be right here waiting for you wherever you go.(很感人的句型!)
       
       
                  B.按时间表示将要发生的动作或事件,用一般现在时表达将来时概念。
       
       
                  ►. The play begins at 6:30 this evening.
       
       
                  ►. When does the plane take off?
       
       
                  ►. He leaves for that city next week.
       
       
                  ►. According to the timetable, the express train to Shanghai starts at nine in the morning.
       
       
                  (按照时刻表,开往上海的特快列车早上 7 点出发。)
       
       
                  测试精编
       
       
                  1. The Browns ________ a nice car and Brown's brother ________ a nice jeep.
       
       
                  A. have / have B. has / has C. have / has D. has / have
       
       
                  2. If their house ________ not like ours, what ________ it look like?
       
       
                  A. is / is B. is / does C. does / does D. does / is
       
       
                  3. - ________ you think he will come? - If it ________ tomorrow, he will not come.
       
       
                  A. Do / rains B. Are / rains C. Do / will rain D. Are / will rain
       
       
                  4. The little child ________ not even know that the moon ________ around the earth.
       
       
                  A. do / move B. do / moves C. does / moves D. did / moved
       
       
                  5. Many a student ________ fond of films, but a good student seldom ________ to the cinema
       
       
                  A. are / goes B. is / goes C. are / go D. is / go
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