小升初各种时态动词变形的讲解及练习
小升初复习-----动词的各种时态讲解及练习
一、一般现在时:
一般现在时的构成
1.be动词:主语+be(am,is,are)+其它
如:I am a boy.我是一个男孩。
He is a student .他是一个学生
2.行为动词:主语+行为动词(+其它)。如:We study English.我们学习英语。当主语为第三人称单数(he, she,it)时,要在动词后加"-s"或"-es"。
如:Mary likes Chine.玛丽喜欢汉语
动词第三人称单数变化规则:
保护动物的英语作文A、一般直接加“s”,如:play –plays, visit –visits, speak –speaks ;
B、以“s”,“x”,“sh”,“ch”结尾时,加“es”,如:catch –catches, watch – watches ;
C、以“辅音字母+y”结尾时,变“y”为“i”再加“es”,如:carry –carries, study – studies 。
去火喝什么茶最好
太阳赤纬一般现在时的变化
1.be动词的变化。否定句:主语+ be + not +其它。如:He is not a worker.
他不是工人。
一般疑问句:Be +主语+其它。如:-Are you a student? -Yes. I am. /No, I'm not.
特殊疑问句:疑问词+一般疑问句。如:Where is my bike?
2.行为动词的变化。否定句:主语+ don't( doesn't ) +动词原形(+其它)。如:I don't like bread.
当主语为第三人称单数时,要用doesn‘t构成否定句。
如:He doesn't often play.
一般疑问句:Do( Does ) +主语+动词原形+其它。
如:- Do you often play football?- Yes, I do. / No, I don't.
当主语为第三人称单数时,要用does构成一般疑问句。
如:- Does she go to work by bike?- Yes, she does. / No, she doesn't. 特殊疑问句:疑问词+一般疑问句。如:How does your father go to work?
二、现在进行时
1.现在进行时表示现在正在进行或发生的动作,也可表示当前一段时间内的活
动或现阶段正在进行的动作。He is taking pictures.
(2)现在分词(动名词)构成规则:
A、一般直接加“ing”,如:go – going, do – doing, look – looking ;
幸好有你
B、以不发音的“e”结尾的单词,去“e” 加“ing”,如:take –taking, make – making, have – having ;
C、以重读闭音节结尾的词,如末尾只有一个辅音字母,需要双写这个字母再加“ing”,如:
put – putting, stop – stopping, run – running, get – getting, swim – swimming, sit – sitting, begin – beginning,
jog – jogging, forget – forgetting 。
2.现在进行时的肯定句基本结构为be+动词ing. The monkey is swinging. She is cooking dinner . he is doing his homework.
3.现在进行时的否定句在be后加not。She is not taking pictures. He isn’t climbing mountains.
4.现在进行时的一般疑问句把be动词调到句首。Is he reading a book? Is the rabbit running ?
5.现在进行时的特殊疑问的基本结构为:疑问词 + be + 主语 + 动词ing?
三、一般将来时
浓差电池1. 概念:表示将要发生的动作或存在的状态及打算、计划或准备做某事。句中一般有以下时间状语:tomorrow, next day(week, month, year…),soon, the day after tomorrow(后天)this morning , this afternoon , this evening等。
2.基本结构:①be going to + do;She is going to visit his grandparents next weekend .
Amy is going to climb mountains tomorrow.
②will+ do. He will go shopping this afternoon.
He will go to shanghai next month .
3.否定句:在be动词(am, is, are)l后加not或情态动词will后加not成won’t。
四、一般过去时
1.一般过去时表示过去某个时间发生的动作或存在的状态,常和表示过去的时间状语连用。一般过去时也表示过去经常或反复发生的动作。
如:yesterday ,last( weekend ,month ,year…) be ud to
2.Be动词在一般过去时中的变化:
⑴am 和is在一般过去时中变为was。(was not=wasn’t)
⑵are在一般过去时中变为were。(were not=weren’t)
⑶带有was或were的句子,其否定、疑问的变化和is, am, are一样,即否定
句在was或were后加not,一般疑问句把was或were调到句首。
3.句中没有be动词的一般过去时的句子
否定句:didn’t +动词原形,如:Jim didn’t go home yesterday.
一般疑问句:在句首加did,句子中的动词过去式变回原形。
如:Did Jim go home yesterday?
特殊疑问句:⑴疑问词+did+主语+动词原形?如: What did Jim do yesterday?
⑵疑问词当主语时:疑问词+动词过去式?如:Who went to home yesterday?
(3)过去式构成规则:
A、一般直接加“ed”,如:plant – planted, visit – visited, pick –picked ;
B、以不发音字母“e”结尾,直接加“ed”,如:like –liked, hope –hoped, taste – tasted ;
C、以“辅音字母+y”结尾时,变“y”为“i”再加“ed”,如:try –tried, carry – carried, study – studied ;
D、有些动词要双写最后一个字母,再加“ed”,如:stop – stopped ;
E、还有很多动词的过去式是不规则的,请记忆:
是-am(be)-was- 是-are(be)-were 是-be-was, were
练一练:
1、写出下列动词的第三人称单数。
drink __________go ____________stay __________make __________look __________have _________
pass __________carry __________come ___________watch __________plant _________fly ________
study ________brush _________do ___________teach____________ take__________
e__________
2、写出下列动词的现在分词。
强直性脊柱炎病因put __________give __________fly _________get ________dance
幸福树怎么扦插________sit_________ run ________
plant _________take ___________swim _________ask ___________stop
__________take _________
write __________have __________smoke _________ think__________
冬至美食want__________ tell__________
3、写出下列动词的过去式。
is\am _________fly _______plant ________are ________drink _________play _______go ________
make ________does _________dance ________worry ___________ask
________taste _________
eat __________draw ________put ______throw ________kick _________pass _______do ________
4、用动词的适当形式填空。
(1)I ______to school from Monday to Friday. My brother often _______to school with me. Yesterday we
_______to school together. We like ________to school very
much. ( go )
(2)They usually _______lunch at home. But last week, they ____lunch at school. ( have )
(3)That______my English book. It _____new. But now it _____not here. It ______there a moment ago. ( be )