四个基本时态-句型转换精讲及练习-适合小升初

1、4 个基本时态：、。一、 一般现在时 ：描述兴趣、爱好、客观事实、普遍真理、性格、能力、特征等（ 1）当主语是第一人称或复数时，肯定句主语 + 动词原形 +其他 I go to school at 7:00 every morning.否定句主语 +don't+ 动词原形 +其他.一般疑问句Do+ 主语 + 动词原形 + 其他?（ 2）当主语是，肯定句主语 + 动词的第三人称单数+ 其他 Lily goes to school at 8:00 every morning.否定句主语 +doesn't+ 动词原形 + 其他.一般疑问句Does+ 主语 + 动词原形 +其他?二、一

2、般过去时： 表示过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为；过去主语所具备的能力和性格。基本结构：主语+动词过去式 +其他；否定形式 was/were+not; 在行为动词前加一般疑问句 Did+ 主语 +do+ 其他 ?didn't ，同时还原行为动词；动词规则变化：1.直接加ed： work ,2.以 e 结尾的单词，直接加d： live 3 以辅音字母+y 结尾的，变y 为 i 加 ed： study 4 以元音字母+y 结尾的，直接加ed： enjoy 5 以重读闭音节结尾的，双写最后的辅音字母+ed ：stop 动词不规则变化- 略三、现在进行时：表示动作

3、发生的时间是“现在 ”，动作目前的状态是“正在进行中 ”。基本结构：主语+be+V.ing现在分词形式The teacher is speaking right now.否定句：主语+be （ is/am/are ） +not+ 现在分词一般疑问句:be（ is/am/are ） + 主语 +现在分词特殊疑问句：特殊疑问词+ 相应 be 动词 +主语+现在分词+Sth?.动词加ing的规则(1) 直接在谓语动词后加ing.例如：go-, start-, work-.(2) 去掉词尾不发音的e，再加ing.例如leave-, dine-.注意：如果单词结尾的e 发音，则不能去掉，也直接加ing.

4、例如： see -另外，有少数动词比较特殊，请用心记住： 例如： lie lying /diedying/tie(3)对于重读闭音节词，双写末尾字母再加ing.例如： sitting, beginningtying/agree -/picnic - picnicking.四、一般将来时：表示将来某一时刻的动作或状态，或将来某一段时间内经常的动作或状态。常常和表示将来的时间状语连用。如：tomorrow （明天）， next week（下周）， from now on （从现在开始） ； in the future （将来）等。（ 1） “will+ 动词原形” 表示将来发生的事情，用于征求对方

5、的意见或表示客气的邀请。We will go to Disneyland next month.（ 2） “be going to+ 动词原形”表示即将发生的或最近打算进行的事。例如We're going to meet outside the school gate. Look!.我们打算在校门口见面。瞧！快下雨了。（ 3） be about to表示即将发生的动作，意为：很快，马上。Theyleave. (=They're going to leave.)他们就要走了。句型转换小练习：1.I am Miss Gao. ( 改为否定句 )Miss Gao.2.There is

6、 some water in the bottle. (改为否定句 )in the bottle.3.She doesn t like this coat.（改为肯定句）.4.Did Lucy and Lily go to the cinema last night?（改为陈述句）the cinema last night.同义句转换1. How interesting the story-book is!it is!2.Bill is in.Bill.3.Lucy hasn t finished the work. Lily hasn t finished it, either.LucyLi

7、lythe work.4.Jim went to the park last Sunday. Tom went to the park, too.JimTom went to the park last Sunday.5.He is so weak that he can t carry it.He iscarry it.时态转换1.I get up at six every morning.用 yesterday morning改为一般过去时.用 tomorrow morning改为将来时.用 now 改为现在进行时.2.Linlin is doing his homework now.用

8、every day改为一般现在时.用 tomorrow evening改为将来时.英语句型转换练习（一）一般疑问句一、把 be 动词（ amisare）和情态动词(can, may, must.) 放到句首，其它照写。遇 I/we you,my your. some any.句号变成问号（？）例如：陈述句 :They are in the park.一般疑问句 :Are they in the park?He can play the guitar.Can he play the guitar?把下列句子变成一般疑问句1.Iamlisteningtomusic._2.Mikeisastuden

9、t._3.Sarahcancleantheclassroom._4.Theyareinthezoo._5. Therearesomeflowersinthevase._6.Thisismysister._7.Wearesweepingthefloor._二、借助助动词 do/does,第三人称单数用 does,其余人称用 do，放到句首，其他照写。 特别记住：前面用 does,后面的动词一定还原成原形。 遇 I/we you, my your, some any. 句号变成问号（？）例如： 陈述句 :I like the ducks.He likes the dogs. 一般疑问句： Do y

10、ou like the ducks?Does he like the dogs?把下列句子改为一般疑问句。1. We need some masks._2. They like making the puppet._3. Su Hai and Su Yang live in a new house._4.I put a book on my head._5. They sing“ In the classroom” together._6.We play basketball on Sundays._7. Tom likes listening to music._英语句型转换练习（二）否定句

11、一、在 be 动词（ am is are）和情态动词(can, may, must.)后面加 not，其它照写。 some变成 any.例如：陈述句 :They are in the park.He can play the guitar.否定句 :They are not in the park. He cannot play the guitar.或： They aren tinthe park He cantplay the guitar.am not 不能缩写is not=isn tare not=aren cant not=cant把下列句子变成否定句1. I amlistening

12、 to music._2.Mikeis astudent._3. Sarah can clean the classroom._4. They are in the zoo._5. There are some flowers in the vase._6.This is my sister._7.Wearesweepingthefloor.二、借助动词dont/doesn第三t,人称单数用doesn其t,余人称用dont，(如果原句子时态是过去时，用did)放到人称后面，动词前面其他照写。特别记住：前面用doesnt,后面的动词一定还原成原形。some 变成any.例如：陈述句:I like

13、 the ducks.He likes the dogs.否定句：I dont like the ducks.He doesntlike the dogs?把下列句子改为否定句。4. We need some masks._5. They like making the puppet._6. Su Hai and Su Yang live in a new house._4.I put a book on my head._5. They sing“ In the classroom” together._6.We play basketball on Sundays._7. Tom like

14、s listening to music_同义句转换1.It s very heavy. Can you help me?It s very heavy. Can you?2.Helen is good at playing the violin.Helenplaying the violin.3.How interesting the story-book is!it is!4.What s your father s job?5.We sometimes go to the movie.We sometimes.6.Bill is in.Bill.7.He is so weak that

15、he can t carry it.He iscarry it.8.She was happy when she heard the news.She was happythe news.9.He is taller than any other boys in his class.He isin his class.10. Could you tell me how I can get to the park?Could you tell methe park?句子结构分析(请把以下句子按要求填入第六页的表格)1. My name is Mary.2. I did my homework for 1 hour.3. My mother took me to the park yesterday.4. I like reading very much.5. I play basketball three times a week.6. Yesterday we went to the museum.7. Lily studies in No. 3 Middle School.8. The shop is about 3 miles away from here.9. The coat looks like hers.10