一般现在时态与一般过去时态的区别.doc

一般现在时态与一般过去时态的区别1. 一般现在时的概念： 1. (1)表示经常性或习惯性的动作或存在的状态。如：I often go to school by bike. (2)表示客观事实或普遍真理。如：The earth goes around the sun. (3)在时间、条件等状语从句中，用现在时表示将来。如：If it rain tomorrow, we wont go to the park .When I grow up ,I will go to America. (4)在某些以here ,there 开头的句子中用一般现在时表示正在发生的动作。如：There goes the bell. 铃响了。2. 与一般现在时连用的时间状语 (1)表示频度的副词 always , often ,usually, sometimes 等。 （2）on Sundays , on Monday afternoon, every day , in the morning, every year 等时间状语。 （3）once a year, twice a month , three times a week 之类的表示频率的词组。3. 一般现在时的构成 其主要用“系动词be”和“实义动词”表示，如果主语是第三人称单数则将动词原形变为第三人称单数形式。2. 一般过去时的概念：1. （1）表示过去某时间发生的动作或存在的状态。 如：I got up at six this morning . We visited the factory last week. (2)表示过去的习惯或经常发生的动作。（过去常常做某事也可用used to do sth 来表示）如：When I was in the country side , I often swam in the river.2. 与一般过去时连用的时间状语 last night , last week ,yesterday, yesterday morning/ afternoon/ evening, some years ago , in 1995, in the past , the other day, at that time , just now, after two days 等。3. 一般过去时的构成类别构成方法例词读音规则一般情况加-edlook-looked play-playedstart - started清辅音后面读作/t/；浊辅音和元音后面读作/d/；/t/和 /d/后面读作/id/ 。以e 结尾的动词加-d live-livedhope-hopeduse-used以重读闭音节结尾的动词，末尾只有一个辅音字母双写这个辅音字母，再加-ed Stop-stoppedPlan-planned以辅音字母加y结尾的动词变y 为i，再加-edstudy-studiedcarry-carriedworry-worried其主要用动词的过去式表示，并且过去式无人称和数的变化，即它不随主语变化。动词的过去式分为有规则变化和无规则变化两种情况。无规则动词的过去式：原形过去式原形过去式原形过去式am/iswasarewerebringbroughtbuy bought come camecutcutbo/doesdid drawdrewdrinkdrankdrivedroveeatatefeedfedfeelfeltFight foughtfindfoundflyflewforgetforgotgetgotgo went三 习题训练：1. He doesnt feel well and _(not eat) any food this moring.2. -When _you _(write) this poem? -I _(write)it last year.3. -What _Bill _(do) on Saturday afternoon? - He _(play)soccer and _(read) an interesting book.4. He _(not see) me come in ,for he _(read ) something with great interest.5. Who _(dance) the best in your class?6. My friend,Lucy,_(study)for the math test and _(practice) English last night.7. Mr.Zhang _(teach) us English three years ago.8. -Guess what! I saw Sally in London. - Really?I _(think) she was in New York.9. I often _(ride) a bike to school in the past, but now I _(take) a bus to school.10. It _(start) to rain when we got to the cinema.4 单选。1. -Ive just got a new MP4. - Where_you _it ? - In a shopping mall near here.A. have, bought B. did, buy C. are, bought D. were, getting2. -Hello,mum.Are you still on Lushan Mountain?-Oh,no. We are back home. We _ a really good journey.A. have B. had C. are having D. will have3. If you _ for your favorite TV programs, you will feel sleepy. A. stay up B.set up C. stay at D. pick up4. -You look so tired . What happened? - I _ late writing an article for a newspaper yesterday evening.A. stayed up B. woke up C. got up D. picked up5. -Be careful! A car may hit you. - Thank you ! I _I _ so close to the road.A. didnt know, am standing B. dont know, am standing C.didnt know , was standing D. didnt know, would stand6. The factory _its waste into the river ,but now it deals with the waste in a new way. A. used to dump B. is used to dump C. used to dumping D. is used to dumping dump (倾倒）7. John is always _ others. A. help B. helpi