if真實(shí)條件句語(yǔ)法及練習(xí)

1、般現(xiàn)在時(shí) 1. 1含be動(dòng)詞的一般現(xiàn)在時(shí)1.含義：表示一般性，經(jīng)常性的動(dòng)作或一般性事實(shí)。2.謂語(yǔ)動(dòng)詞的構(gòu)成：am / is / are3.句型:1).肯定句:主語(yǔ) + be動(dòng)詞+其他。注意:句子的第一個(gè)單詞的首字母大寫；句末加實(shí)心點(diǎn)。2).否定句:主語(yǔ) + be動(dòng)詞+ not +其他。注意： 句子的第一個(gè)單詞的首字母大寫；在be動(dòng)詞后面加not ;句末加實(shí)心點(diǎn)。3). 一般疑問(wèn)句：Be動(dòng)詞+主語(yǔ)+其他?注意：把be動(dòng)詞提前；句子的第一個(gè)單詞的首字母大寫；第一人稱改為第二人稱；句末加問(wèn)號(hào)?？隙ɑ卮穑篩es,主語(yǔ)+ be動(dòng)詞。否定回答：No,主語(yǔ) + be動(dòng)詞 + not.4).特殊疑問(wèn)句：特殊疑

2、問(wèn)詞 + 般疑問(wèn)句?1.2含實(shí)義動(dòng)詞的一般現(xiàn)在時(shí)1.含義：表示現(xiàn)在的事實(shí)或狀態(tài)表示現(xiàn)在的習(xí)慣或反復(fù)的動(dòng)作2.謂語(yǔ)動(dòng)詞的構(gòu)成：do/does3.動(dòng)詞的第三人稱單數(shù)形式的變化形式(動(dòng)詞的適當(dāng)形式)般情況下，直接在動(dòng)詞后面加S。例: want - wants以s,x,sh,ch,o 結(jié)尾的動(dòng)詞，加es。例: wash - washes ; go - goes;do -does以輔音字母加y結(jié)尾的動(dòng)詞，變y 為 i 再加 es。 例：try - tries4.句型:肯定句：主語(yǔ)+動(dòng)詞原形+其他。（主語(yǔ)非二單）主語(yǔ)+動(dòng)詞的適當(dāng)形式+其他。（主語(yǔ)是三單）否定句：主語(yǔ)+ do+ not +動(dòng)詞原形+其他。（

3、主語(yǔ)非三單）主語(yǔ)+ does + not +動(dòng)詞原形+其他。（主語(yǔ)是三單）般疑問(wèn)句：D0+主語(yǔ)+動(dòng)詞原形+其他？（主語(yǔ)非三單）肯定回答:丫es,主語(yǔ)+ do.否定回答:No,主語(yǔ)+do+not.Does+主語(yǔ)+動(dòng)詞原形+其他？（主語(yǔ)是三單）肯定回答：Yes,主語(yǔ)+does.否定回答：No,主語(yǔ)+ does +not.特殊疑問(wèn)句：特殊疑問(wèn)詞 + 般疑問(wèn)句?般將來(lái)時(shí)2.1 Be goi ng to 句型1.含義:打算要做某事準(zhǔn)備做某事2.謂語(yǔ)動(dòng)詞的構(gòu)成：be going to + V3.句型:肯定句：主語(yǔ)+ be going to + V 原 +其他。否定句：主語(yǔ)+ be + not + goin

4、g to + V原+其他。般疑問(wèn)句:Be + 主語(yǔ) + going to + V原+其他?肯定句：Yes,主語(yǔ)+ be.否定句：No,主語(yǔ)+ be + not.特殊疑問(wèn)句：特殊疑問(wèn)詞+ 般疑問(wèn)句?2.2 will/shall1.含義：表示將要做還沒(méi)有做 2.謂語(yǔ)動(dòng)詞的構(gòu)成：will / shall + V3.句型:肯定句：主語(yǔ)+ will / shall + V原+其他。否定句：主語(yǔ)+ will / shall + n ot + V原+其他。般疑問(wèn)句:will / shall +主語(yǔ)+ V原+其他?肯定句：Yes,主語(yǔ) + will / shall.否定句：No,主語(yǔ)+will / shall

5、+ not.特殊疑問(wèn)句：特殊疑問(wèn)詞 + 般疑問(wèn)句?If真實(shí)條件句：（主將從現(xiàn)）1. if意為“如果”，引導(dǎo)條件狀語(yǔ)從句，可放在主句后，也可放在主句前，常用逗號(hào)隔開(kāi)。2.含if引導(dǎo)的條件狀語(yǔ)從句的復(fù)合句中，主句有下列情況時(shí)，從句用一般現(xiàn)在時(shí)表示將來(lái)意義:up.當(dāng)主句為一般將來(lái)時(shí)態(tài)時(shí)。如:If your daughter comes, I will call you當(dāng)主句是祈使句時(shí)。如:PI ease stay at homeif it rains tomorrow.當(dāng)主句的謂語(yǔ)含有 can, may, must等情態(tài)動(dòng)詞時(shí)。女口： If he goes on smoking, it may be

6、 very bad for his health.當(dāng)主句的謂語(yǔ)是hope, wish, want等動(dòng)詞時(shí)。女口： I want to go there if the rain stops.一.單項(xiàng)選擇1.If youto the p arty, youll have a great timeif itA. will go2. IB. wentC. goher the an swer if sheme.A. can tell, will ask B. will tell,will tell, asks3. What are you going to do tomorrow? -WeA. is n

7、 t rainB. rainD. goingwill ask C. would tell, askll go to the library tomorrowD.4. What will you do if youA. goB. went5. I1.2.C. won t rainD. does nt rainto the old folks home visit?C.goi ngD. will goll give the book to him if hehere n ext Sun day.A. will come B. comesC. is comingD. CameIf hehard, h

8、e will get good grades.A. study B. StudiesC. will studyD. StudiedI want to know if Maryto the party tomorrow.A. goB. WentC. will goD.goes3. Every one must dress up. If you,they won t let you in.A. don t B. wonC. can tD.mustn t4. Mary will go to Sanya if shea five-day trip.A. have B. HadC. will haveD

9、. has5. If he comes late,he will miss the train.A. andB. SoC. /D. or二、用所給詞的適當(dāng)形式填空1f you(feel) tired, you(have) to have a rest.2. Wherehe(see) the film if he(have) time?3. If there(be) fewer trees, there(be) more p olluti on.4. He(dress) more casually if he(not work) on weekends.5. If Marcia(live) al

10、one, she(keep) a pet p arrot.6. La na(buy) a new dress if the old one(be) out of style.7.The twins(fight) if they(argue).8. I(have) a bake sale if I(n eed) money for educati on.9. P eter(send) me a beautiful souve nir if he(tour) Spain.10. If Mr Green(say) I am hard- work ing, my p are nts(feel)glad.11.1(go) to the beach if it(not rain) this week.12.they(have) a match if the P.E. teacher(be) busy?13.He(write) a letter to his grandparent