Lesson130Hecan’thavebeen…

Hemusthavebeen…NewwordsTheyarewavingtous.

wavetosb.向某人招手

trackn.跑道；（火車等的）軌道

racetrack賽車跑道

Theblackcarisdrivingatseventymilesanhour.

Thewhitecarisdrivingateightymilesanhour.

overtake/overtook/overtakenv.超車

Thewhitecarwillovertaketheblackcar.Speedlimitdreamn.

夢；夢想v.做夢，

dream

of/

aboutdoingsth.夢想著做某事Hedreamedabouthisgrandmotherlastnight.

他昨天夜里夢見他的祖母了。Idreamofbecomingafamousdoctor.我夢想著成為一位聞名的醫(yī)生。對過去的否定推測，那時不可能對過去的肯定推測，那時肯定是過去不可能正在做過去一定正在做wantsbtodosth現(xiàn)在完成進行時表對過去正進行的事推測?！耙欢ā币?..的速度情態(tài)動詞的否定插入語，用在特殊疑問句do表“以...速度行進beafraid沒開小差過去進行時tellsbtodo這次hadbetterdosth頻率副詞takeone'sadvice“聽從某人的勸告”Idon’tthinkitwas.Itcan’thavebeenTuesday.ItmusthavebeenWednesday.Idon’tthinkitwas.Itcan’thavebeencheap.Itmusthavebeenexpensive.Idon’tthinkshewas.Shecan’thavebeenretiring.Shemusthavebeenlookingforanewjob.Idon’tthinkshewas.Shecan’thavebeenadentist.Shemusthavebeenadoctor.can’thavebeendoingmusthavebeenmusthavebeensleepingcan’tbecan’thavedrivenmustbeGreatGrammar情態(tài)動詞表推測一、對現(xiàn)在的推測mustbe“一定是”maybe“可能是”can'tbe“不可能是”couldn'tbe“可能不是”情態(tài)動詞+be一、對將來的動作的推測HemustbeinBeijingtomorrow.他明天一定會到北京.HemaybeinBeijingtomorrow.他明天或許會到北京.Hecan'tbeinBeijingtomorrow.他明天不可能到北京.情態(tài)動詞+be一、對現(xiàn)在進行動作的推測mustbedoing“一定正在”maybedoing“可能正在”can'tbedoing“不可能正在”一、對過去的推測Hemust

havebeentired.他那時一定很累。

Hemay

havebeentired.他那時或許很累。

Hecan'thavebeentired.他那時不可能很累。

情態(tài)動詞+havebeen一、對過去的推測musthavebeen“那時一定是”mayhavebeen“那時可能是”can'thavebeen“那時不可能是”一、對過去正在進行的動作的推測Hemust

havebeen

watchingTV.他那時一定正在看電視。

Hemay

havebeen

sleeping.他那時可能正在睡覺。

Hecan'thavebeen

woking.他那時不可能在工作。

情態(tài)動詞+havebeendoing一、對過去正在進行的動作的推測musthavebeendoing

那時一定正在mayhavebeen

doing那時可能正在can'thavebeendoing那時不可能正在漢譯英。1.向某人招手_____________2.想讓某人做某事______________3.在賽車道上____________4.以每小時70英里的速度___________________5.告訴某人做某事_____________________wavetosb.wantsb.todosth,onaracetrackatseventymilesanhourtellsb.todosth.漢譯英。6.這次__________7.最好做某事_______________8.最好不要做某事____________________9.更小心____________10.下次___________11.采納某人的意見________________________thistimehadbetterdosth.hadbetternotdosth.morecarefultakeone’sadvicenexttime二．單項選擇。1.Theyarewaving______usnow.A.forB.atC.afterD.to2.Somestudentsare______aracetrack.A.atB.onC.forD.to3.Hehasbeendriving______eightymilesanhour.A.forB.atC.onD.in4.Hewasdoinghishomework______hismothercamein.A.whenB.ifC.afterD.because5.Theteachertoldthem______inthestreet.A.don’tplayB.tonotplayC.nottoplayD.notplaying

.me6.You’dbetter______thewindow.A.tonotopenB.notopenC.nottoopenD.notopening7.—Hemustbefifty.—No,he______befifty.A.can’tB.mustn’tC.couldn’tD.needn’t8.Letme_____you.A.tohelpB.helpingC.helpD.helped9.You’dbetter________.A.listenmyadvi