中考英语语法之一般现在时精讲精练 .docxVIP

一、 定义与讲解 一般现在时：表示经常性，习惯性的动作或状态。 时间状语：often 经常，usually通常，always 总是，every每个，sometimes 有时，seldom 极少，never从不 结构：?动词原形 （第三人称单数-动词+s/es）。 第三人称单数变化： (1)直接在动词词尾加-s. ask---asks work---works get---gets stay---stays (2)以字母s, x, ch, sh或o结尾的动词，在词尾直接加-es. watch---watches wish---wishes fix---fixes do---does go---goes pass---passes (3)以“辅音字母加 - y”结尾的动词，要先变y为i再加-es. try---tries study---studies cry---cries fly---flies 2.不规则变化： be---- is are? have----has 二、一般现在时用法 1. 表示经常性，习惯性,永久性的动作或存在的状态. 通常与副词sometimes, often, usually, always, every day (year, month ), once (twice, three times) a day,等时间状语连用。 They?usually?go to school by bike. 他们通常骑自行车去上学。I take the medicine?three times a day. 我一天吃药三次She helps her mother?once a week. 她每周帮她妈妈一次。Mary’s father is a policeman. 玛丽的爸爸是个警察。There are 50 students in my class. 我们班里有50名学生。 2. 表示客观真理，科学原理，自然现象，等客观事实或格言，谚语等。 The sun rises in the east and sets in the west every day. 太阳每天从东边升起从西边落下。Tomorrow is Tuesday. 明天是星期二。三、一般现在时的句子转换： (1)当句子中有be动词或情态动词时，则把be动词或情态动词(can,could等等)提到主语的前面变成疑问句;在be动词或情态动词后面加not变成否定句. 例：①陈述句：She is a student. 疑问句→ Is she a student? 否定句→ She is not a student. ②陈述句：I can swim. 疑问句→ Can you swim 否定句→ I can not swim. (2) 当句子中即没有be动词，也没有情态动词时，则在主语前加助动词do (you,以及复数), does(单数she,he,it)变成问句;在主语后谓语动词前加助动词don’t(I,you,以及复数), doesn’t(单数she,he,it)变成否定句，助动词后的动词要变成动词原形。 ①陈述句：We get up at 7:00 every morning. 我们每天早上7点起床。疑问句→Do you get up at 7:00 every morning? 否定句→We don’t get up at 7:00 every morning. ②陈述句：She?has?a little brother. 她有一个小弟弟。 疑问句→?Does?she have a little brother? 否定句→ She?doesn’t?have a little brother. 一 用所给词的正确形式填空，并且把关键词圈出来。 1. We often___________(play) on the playground. 2. He _________(get) up at six o’clock. 3. __________you _________(brush) your teeth every morning. 4. What_______ (do) he usually ________(do) after school? 5. Danny _______(study) English, Chinese, Maths, Science and Art at school. 6. Mike sometimes __________(go) to the park with his sister. 7. At eight at night, she ___________(watch) TV with his pare