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1、第三課時Section A(Grammar Focus4c)單元同步語法精講精練Unit 13Were trying to save the earth! 六大?？紩r態(tài)的主動語態(tài)構(gòu)成一般現(xiàn)在時主語動詞原形/第三人稱單數(shù)其他一般過去時主語動詞過去式其他現(xiàn)在進(jìn)行時主語be動詞動詞ing其他過去進(jìn)行時主語was/were動詞ing其他一般將來時主語will/be going to動詞原形其他現(xiàn)在完成時主語have/has動詞過去分詞其他 六大?？紩r態(tài)的被動語態(tài)構(gòu)成時態(tài)被動語態(tài)謂語構(gòu)成一般現(xiàn)在時am/is/are動詞過去分詞一般過去時was/were動詞過去分詞現(xiàn)在進(jìn)行時am/is/arebeing動

2、詞過去分詞過去進(jìn)行時was/werebeing動詞過去分詞現(xiàn)在完成時have/hasbeen動詞過去分詞一般將來時will/shallbe動詞過去分詞 *含情態(tài)動詞的被動語態(tài)謂語構(gòu)成為：情態(tài)動詞be動詞過去分詞注意問題主動語態(tài)中有些動詞，如：make，see，listen，watch，feel后常跟不帶to的動詞不定式作賓語補足語，變?yōu)楸粍诱Z態(tài)要帶上to。如：He made the boy work for him.The boy was made to work for him.那個男孩被迫為他工作。動詞短語變?yōu)楸粍诱Z態(tài)時，動詞短語后面的介詞或副詞不能省略。如：The baby was lo

3、oked after by her sister.這嬰兒由她的姐姐照顧。 may(might)用來征求對方意見，意為“可以”?？谡Z性較強。might可以指過去時間；也可指現(xiàn)在時間，語氣更委婉。表猜測和對可能性的判斷，意為“可能；也許”。might可以指過去時間；也可指現(xiàn)在時間，但語氣更加不肯定。must表說話人的主觀意愿，意為“必須，應(yīng)該”。無時態(tài)變化。其否定答語常用neednt或dont have to，意為“不必”。注：have to意為“不得不；必須”，主要強調(diào)受到外界客觀因素的迫使。它可用于多種時態(tài)，且有人稱和數(shù)的變化。must本身的否定形式mustnt意為“不許；一定不要”，表示禁止

4、和告誡。 表示對事物的推測，意為“想必；一定”，只用于肯定句。且比may的語氣要肯定得多。would作情態(tài)動詞時，無人稱限制，表意愿，常與like，love連用。should表義務(wù)，意為“應(yīng)該”(某件事宜于做)，用于各種人稱。表推測，意為“想必一定、照說應(yīng)該、估計”等。 一、根據(jù)句意，用括號中所給單詞的適當(dāng)形式填空。1Mary (criticize) by her teacher yesterday.2The sky is (cover) with grey clouds.3It is said that a new space station (build) on the moon.How

5、amazing！But it may take a long time，I guess.4Miss Brown，we (finish) cleaning our classroom.Can we go home now?5Were proud that the China (become) stronger and stronger these years.was criticizedcovered will be builthave finishedis becoming 6I (shop) with my parents when he rang me up yesterday after

6、noon.7Stop smoking，Joe！You (kill) yourself if you keep on doing it like that.8We (tell) to set out at once，or we will miss the train.9You used (go) to school by bike，didnt you?10As middle school students，we shouldnt (be) afraid of difficulties if we want to make our dreams come true.was shopping may

7、/will killare toldto go be 二、單項選擇。11Who is that lady?Shes Miss Green.She us music，and she is so good.(2016，武漢)Ataught BteachesCwill teach Dis teaching12Last week Vivian a dress for her mother with her firstmonth salary.(2016，上海)AbuyBbought Cwill buyDwould buy13When the baby dog ，it was very hungry.S

8、o we gave it some food.(2016，安徽)Ais found Bwas found Chas been found Dwill be foundBBB 14I think it is true that Jill to work today because she is on a trip.(2016，沈陽)Ahas come Bdidnt comeCis coming Dwill not come15Please dont make so much noise.The baby now.(2016，北京)Asleeps BsleptCwill sleep Dis sle

9、eping16May I speak to Mrs. Black?Sorry，Mum cant come to the phone now.She a shower.(2016，江西)Ahas Bhad Cis having Dwas having D DC 17Grandpa glasses when he reads.(2016，河北)Awears BworeChas worn Dwas wearing18My sister with my parents dumplings when I got home yesterday evening.(2016，蘭州)Aare making Bi

10、s makingCwas making Dwere making19What a nice watch！How long you it?For just two weeks.(2016，天津)Awill；buy Bhave；hadCwere；having Ddid；buyA C B 20I the History Museum twice.Ive learned a lot there.(2016，重慶)Avisit Bam visitingChave visited Dwill visit21We are going to take the highspeed train to Xian t

11、omorrow，so an early arrival at the station (2016，河南)Aadvises Bis advisedCis advising Dwas advised22Football to our school subjects last year.(2016，陜西)Ais added Badds Cwas addedDaddedC BC 23Many people play with mobile phones all day instead of reading books.Thats too bad.Everyone be a book lover.Rea

12、ding is more enjoyable.(2016，山西)Amay Bshould Cwould24Rock music sound popular with the young，but its not the favor of the aged people.(2016，泰安)Amust Bneed Cshould Dmay25After dinner，he used to computer games，but now he gets used to .(2016，齊齊哈爾)Aplay；walk Bplaying；walkingCplay；walking BD C 本課時其他知識點精講

13、精練afford動詞，意為“買得起；承擔(dān)得起(后果)”，其后直接接名詞、代詞或動詞不定式作賓語，常與情態(tài)動詞can，could或be able to 連用。eg：The poor parents cant afford to buy some new clothes.這對貧窮的父母買不起新衣服。重點詞組歸納take part in參加turn off關(guān)掉pay for付費；付出代價take action采取行動 1I dont have enough money to (為付費) these books.2Be sure to (關(guān)掉) the lights when you go out.3The government (采取行動) to help the people in the train accident.4Lily doesnt (參加) any of the afterclass activities.5They walked home last night because they couldnt to take a taxi.(2015，重慶)AleaveBbuyCaffordDallowpay forturn offtook actiontake part in C