初中英语八种时态详解及练习 时态是英语学习中一个至关重要的内容，广大初中学生在实际运用时，往往对时态问题倍感棘手，下面我们就归纳复习一下这几种时态。一、 一般现在时（一）定义表示经常性或习惯性的动作，或存在的状态，还表示主语具备的性格和能力及客观真理。例：I get up at 6:30 in the morning . She is at home .(二)构成 主要用动词原形表示，当主语是第三人称单数时，在动词词尾加s/es。(三)句型 1、肯定句：主语+谓语+其他。 She reads English everyday . 2、否定句：主语+dont/doesnt+谓语+其他。 He doesnt get up at 6:30 in the morning . 3、一般疑问句：Do/Does+主语+V原+其他？ Do you like English ? Yes ,I do ./No, I dont . 4、特殊疑问句：特殊疑问词+do/does+主语+V原+其他？ What time do you get up every morning ? Where does your father work ?（三）用法 1、表示经常性或习惯性的动作，或存在的状态，带与表示频率的时间状语如：often , sometimes , usually，always , everyday year，month） , once/twice a week (month , year , etc.) , seldom , on sundays等连用。 I leave home for school at seven every morning . 2、表示客观真理，科学事实、格言警句。 The sun rises in the east .日出东方。 The earth goes around the sun .地球绕着太阳转。 Ten minus two is eight.十减二等于八。 Light travels faster than sound .光的速度比声音的速度快。 The United States lies by the west coast of the Pacific Ocean. 美国位于太平洋西岸。 3、根据英文语法规定，当主句的谓语动词是一般将来时，那么时间或条件状语从句的谓语动词只能用一般现在时来表示将来要发生的动作。Ill tell him the news when he comes back. 他回来时，我将告诉他这个消息。 If you come this afternoon,well have a meeting .4、仅为了描述状态、性质、特征、能力等等。这里的目的是为了描述现阶段的动作或状态，其重点不是强调动作发生的时间、或进行的状态。例如：He can speak five foreign languages .他能说五种外语。That is a beautiful city .那是座美丽的城市。Changjiang River is one of the longest rivers in the world. 长江是世界上最长的河流之一。 She majors in music .她主修音乐。 All my family love football .我全家人都喜欢足球。 My sister is always ready to help others . 我妹妹总是乐于助人。（四）动词第三人称单数形式变化规则 1、一般情况下，动词后直接加-s;如：help-helps ,clean-cleans ,give-gives等。2、以s，x，ch，sh或o结尾的动词，在词尾加-es;如：dress-dresses,fix-fixes,watch-watches,finish-finishes等。3、以辅音字母加y结尾的动词，把y变为i，再加-es;如：study-studies,fly-flies,carry-carries等。4、动词have遇在主语是第三人称单数时，have改为has，如：He has an interesting book .5、动词be遇有主语是第一人称单数时，be改为am，遇有主语是第二人称时，be改为are，遇有主语是第三人称单数时，be改为is 一般现在时练习题1）用动词的适当形式填空1.I like _ (swim).2.He _(read) English every day.3.We _(go)to school at seven in the morning.4.Mike_(go)to school at seven in the morning.5.My mother_(like) _(go) shopping.6.I can _(draw) many beautiful pictures.7.She_(make) a model plane.8.Do you _(like)_(run)?9.Does he_(like)_(jump) ?10.Does Nancy_(grow)flowers on Saturday ?11.The teachers_(like)_(dance).12.The teacher_(like)_(dance).13.The students_(speak) English in class.14.The student_(speak) Chinese after class.15. Lets_and play football . ( go )16. He_ like swimming . ( not )17. Im sorry _that . ( hear )18. Wang Bing is_ ( write ) an E-mail to his friend .19. He has_a headache . ( get )20. _you study English at school ? Yes , I_. ( do )21. _your sister study English at school ? No , she_ . ( do )22. Im _ better . ( feel )23. Why_Tom absent today ? ( be )2）用所给的人称改写句子1.I take photos on Sunday. ( Mike)2.We grow beautiful flowers. (she)3.They like collecting stamps. (Ben)4.I listen to music carefully. (my aunt)5.You like making a model ship. (Helen)6.We clean the classroom every day. (he)7.They look after the pandas. (Mr Wang)8.I draw a tree and some flowers. (Nancy)9.We go to bed at eight. ( my sister)10.I read newspapers in the evening. (Mr Green)3）写出下列动词的相应形式1. 第三人称单数： wash_ match _guess_ study_ finish_ go_ snow_ carry_2.写出下列动词的过去式：stop_ see_ drive _let_ carry_ keep_ join_ find_ think_ teach_ catch_3. 写出下列动词的现在分词形式： stay_ begin_ forget_ forget_ lie_ die _ run_ prefer_ give_ ring_ dance_ hope_II. 用所给动词的适当形式填空：1I _(write) to you as soon as I _(get) to London.2. He doeant feel well and _(not eat) any food this morning.3. He _ not _(see) me come in, for he _(read) something with great interest.4. I _(l;et) you have the book as soon as I _(finish) it.5. While we _(wait) for our teacher, a little boy _(run) up to us.6. Dont make a niose. Grandpa _(sleep). 7.Its seven now, Toms family_(watch) TV.8. It _(take) me two hours to finish my homework last night.9. What _ your mother _(do) at eight yesterday evening? She