人教版八年級英語上主將從現(xiàn)

1、八年級上語法專項一.主將從現(xiàn)f 如果主句是將來時或表示將來含義時.那么條件和時間狀語從句多用一茂現(xiàn)在時ta： When I grow up. I will be a nurse and look after patients/1 want to be a nurse and look after patients.我長大后要當(dāng)一名護士.肥顧柄入.二、如果主句進祈使句那么從由迎常要用一般現(xiàn)在時fcl： Don* t laugh at me when I make a mistake.我犯錯衆(zhòng)的時候不要笑話我:、如果主句是含有情杏動訶的一段現(xiàn)在時，眼據(jù)需要從句多用一妝現(xiàn)在時fcl： You sho

2、uld be quiet when you are in the reading room在閱覽室時應(yīng)保持安靜四、上將從現(xiàn)說的是在含有時間狀沽從句和親件狀語從句的上從紗合句中，如果主句的時態(tài)是一般將.來時, 那么從句要用般現(xiàn)在時。例如？ I will tell him about it when he comesIf it is fine tomorrow, we will go outing.11、如果主句的時態(tài)星:辻去將來時.鄲么從句要用一辰過去時例如：He said that he would have another try if he had the chance.I knew he

3、 could help me if he was free the next day.主要標(biāo)志有:if、unless、until、 when、as soon as等注意if條件句的時態(tài)捂削：If從句用般現(xiàn)在時,主句用股將來時If he runs he II get there in tirrlBL他川浪的.他就會及時趕史那兒.The cat will scratch you rf you pull her tail.如果你拉貓的尾巴，它壊會抓你.if從句用一股現(xiàn)在時.主句用 may/mighl/canIf the fog gets thicker the plane maymight be d

4、iverted.如果勢在大些，EHWJ能就合改在別的機場降落,If it stops snowing we can go out如果雪停了，我們就可以出去.3. if從句用一般現(xiàn)在時,主句用 must/shouklIf you want to lose weight you musUshauld eat less bread.如果你想凝肥，你必須少吃面包.4. if從句用一般現(xiàn)在時，主句用-股現(xiàn)在時If you heat ice it turns to water.（ 也可川 Ml turn）如果把冰加熱.它就會化成水。4. if從句用現(xiàn)在進行時.主句司 耿將來時If you are look

5、ing for Peter you II find him gi徐呈在找彼得，上樓就會找到仏if引導(dǎo)的條件狀語從句專項練習(xí)I .單項選擇()1.lf you to the party, youA. will goB. went()2. I her the answer if she II have a great time. C. gome.D. goingA. can tell, will askB. will tell, will askC. would tell, askD. will tell, asks()3.- What are you going to do tomorrow?I

6、I go to the library tomorrow if it .A. isn t rain B. rainC. won ()4. What will you do if you to the old folkA. goB. wentC. going()5. I II give the book to him if he _ here next Sunday.A. will come B. comesC. is comingIl .用所給詞的適當(dāng)形式壊空t rainD. doesn t rains home?D. will goD. cameIf you (feel) tired, yo

7、u (have) Io have a restWhere he (see) the film if he (have) time?If there (be) fewer trees, there ( be) more pollution.If Marcia (live) alone, she ( Keep) a pet parrot.Lana ( buy) a new dress if the old one (be) out of style.The twins (fight) if they (argue).13.1 (have) a bake sale if I (need) money for education.14. Peter ( send) me a beautiful souvenir if he (tour) Spain.15.1 (go) to the beach if it ( not ra