人教精通版英语四年级下册Lesson12优质课件

人教精通版英语四年级下册Lesson12优质课件

Unit2Therearefortystudentsinourclass.Lesson12精通·四年级下册 Reviewtwenty-onetwenty-twotwenty-threetwenty-fourtwenty-fivetwenty-six二十一二十二二十三二十四二十五二十六twenty-seventwenty-eighttwenty-nineeleventwelvethirty二十七二十八二十九十一十二三十 fortyfiftysixtyseventyeightyninetyonehundred四十五十六十七十八十九十一百 1.问答数量的句型：—Howmany+可数名词复数+arethere+其他？—(Thereis/are+)基数词.你们班有多少名学生？—Howmanystudentsarethereinyourclass?有40名学生。—Therearefortystudents. 2.Let’s引导的祈使句，表示让我们做某事：Let’sdosth.让我们从一数到二十九报数。Let’scountfrom1to29.3.表示……怎么样的句型：Howabout…？你们学校怎么样？Howaboutyourschool? 4.问答对方拥有物品的具体数量的句型：—Howmany+名词的复数形式+doyouhave?—I/we+have+a/an+可数名词单数.—(I/we+have+)基数词(+可数名词复数形式).—Howmanybagsdoyouhave?你们有多少书包？—Wehaveninetybags.我们有90个书包。 Funstory Let’shelpchildreninneed.Weneedbooks. Howmanybooksdoyouhave?Ihavetwenty-fivebooks. Howmanybooksdoyouhave?Ihavethirty-fivebooks. Howmanybooksdoyouhave?Ihavefortybooks. Wehaveonehundredbooksnow.No,wehaveninety-ninebooks.Why? There’sonebookhere! Languagepoints1.Let’shelpchildreninneed.我们帮助需要帮助的孩子们吧！helpsb./sth.帮助某人/某事。例：我们需要帮助那只小狗。Weneedhelpthesmalldog. inneed意为“在危难中，在穷困中”例句：他非常贫穷。Heisingreatneed． 2.Weneedbooks.我们需要书。此句中need为实义动词，意为“需要”。其用法如下：(1)当主语为物时，后接名词或动词-ing。例句:这些花需要浇水。Theflowersneedwatering. (2)当主语是人时，后可接名词和动词不定式.即：needsth./needtodosth.例句:Heneedssomehelp.Youneedtowearmoreclothes. 注意：need后跟不定式且用于否定句中时，表示“不必”，指没义务或没必要做某事。例句:你不必马上做那件事情。Youdon’tneedtodoitatonce. Let’scheck5×10students20+7boys20+3girls5×8teachers4×20books10×10pencils234156 Howmanystudentsarethere?Therearefifty.Playroles5×10students Howmanyboysarethere?Therearetwenty-seven.Playroles20+7boys Howmanygirlsarethere?Therearetwenty-three.Playroles20+3girls LanguagesFocusHowmanystudentsarethereinyourclass?Twenty-nine.Howmanystudentsarethereinyourclass?Thereareforty.Howmanyteachersarethereinyourschool?Therearefifty.Howmanybagsdoyouhave?Wehaveseventybags.Howmanypensdoyouhave?Wehaveninetypens.twenty-one~twenty-ninethirtyfortyfiftysixtyseventyeightyninetyonehundredeleventwelveboygirlteacherschoolbagbookpenpencil 同学们，这一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的视频开始听写吧！