新概念英语第二册语法精讲及练习（一）

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　　新概念英语第二册语法精讲及练习
　　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
　　【答案】
　　1.C 2.B 3.A 4.C 5.B