北师大版高中英语选修七unit 21《human biology》（lesson1）word学案

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1、Unit21Lesson1学习目标Bytheendoftheclass,thestudentswillbeableto:lreviseConditionalsllearnandexperienceMixedConditionalsllearnandrevisewordsrelatedtothetopic.学习过程课前准备Intervaldigestswaphearingpulseenhancesupremetoleratedoubtfulseekannualabuseviolatefundamentaloppose课堂活动

2、（一）预习交流Checktheanswers.（二）合作探究1.Whatisthegeneralideaofthepassage?2.Readthetextagain,matchthekeyinformationwitheachpart.Partone.(1-2)DopingPartone.(3-6)RecordshavefallenPartone.(7)OlympicspiritPartone.(8)Gene-therapy（三）分层提高Task1:Whichkindoftheconditionalsdothefollo

3、wingsentencesbelongto?A.theZeroConditionalB.theFirstConditionalC.theSecondConditionalD.theThirdConditional()1.IfIdon’teatbreakfast,Ialwaysgethungryduringclass.()2.Iftherainstops，thematchwillbegin.()3.Ifmybrotherwerehere,everythingwouldbeallright.()4.Ifhehadseenyou

4、yesterday,hewouldhaveaskedyouaboutit.真实条件句______________虚拟条件句_____________________Task2:Accordingtotheabovesentences,fillinthetable.Ifclause(谓语形式)mainclause(谓语形式)theZeroConditionaltheFirstConditionaltheSecondConditionaltheThirdConditionaltheFirstConditional用来描述___

5、_____________________________________________________theSecondConditional用来描述_______________________________________________________theThirdConditional用来描述________________________________________________________theFourthConditional用来描述_____________________________

6、__________________________Practice（一）总结归纳（二）巩固反馈AccordingtotheChinese,completethefollowingsentences.1.如果他遵照医生的劝告，现在病就好了。If he ____________________the doctor's advice，he would recover already．2.如果我当时在学校用功读书，我现在就有一个更好的工作了。IfI__________________harderatschool,I_______

7、_______________abetterjobnow.3.如果我不害怕蜘蛛的话，我就会把它抓起来的。IfIwasn’tafraidofspiders,I______________________itup.4.要是他们一大早就出发，再过半个小时就该到了。Iftheyhadstartedintheearlymorning，they_________________inhalfanhour．5.如果昨晚下雨，今天就要凉快些了。Ifit_________________lastnight,it________________

8、_______coolertoday.