最新新概念英语第一册第19课第20课教学讲义ppt课件.ppt

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1、新概念英语第一册第19课第20课Lesson19TiredandthirstyWhydothechildrenthanktheirmother?Becausetheirmotherbuyice-creamsforthem.Mother:What’sthematter,children?What’sthematter?What’swrong?…怎么了？/…有什么事？Girl:We’retired…Boy:…andthirsty,Mum.withyouwithLily1.Therebe句式通常带有一个地点，表示在某地有某物。如：Thereisablack

2、boardintheclassroom.Therearetwoemptybottlesonthedesk.Therebe结构的用法2.该句式中be动词的单复数形式取决be动词后面的名词：be动词后面的名词是单数，be动词用is;be动词后面的名词是复数，be动词用are.Thereisaboyintheroom.Therearethreeredapplesonthetable.3).如果该句式的主语是由几个名词并列构成，则按就近原则处理，即与靠近be动词的第一主语保持一致Thereisabook,adictionaryandtwopensonthed

3、esk.Therearetwopens,abookandadictionaryonthedesk.4.Therebe句式变疑问句时，只需要把be动词提到there的前面就可以了。Isthereapolicemanintheroom?Yes,thereis./No,thereisn’t.5.Therebe句式变否定句时，只需要把be动词后面加not就可以了Thereisnotapolicemanintheroom.There___apolicemanintheroom.is1.There______5orangesand4pears.2.There__

4、_abookandtwodictionaries.3.There___twomapsandapicturesonthewall.4.Thereisanice-creammannearthetree.(变一般疑问句）____________________________________________5.Thereisamilkmanneartheschool.(变否定句）____________________________________________6.桌子上有一个苹果。__________________________练习题areisa

5、reIsthereanice-creammannearthetree?Thereisn’tamilkmanneartheschool.Thereisanappleonthetable.桌子上有一个大苹果和两个小苹果。________________________________________Thereisabigappleandtwosmallapplesonthedesk.bigsmalllongopenShutheavylightgrandfathergrandmotherLookatthem!!Theyarehappy.Lookatthem

6、!!Theyarehard-working.Theyareshut.Theyareopen.bye~1.5×4=2.5×4=0.13×4=5.4÷10=0.18×0.3=4.2×1000=0.45÷0.15=3.6÷0.1=8.5×100=8.5÷1.7=3.2÷100=1.2÷0.30.49÷7=0.04×25=0.096÷0.03=84÷4.2=1000×0.756=0.5×100=0÷0.25=1÷0.01=1.25×8=3.8×2=7.2÷0.9=1.6×0.2=9.3÷0.3=4÷0.4=0.45÷0.50.2÷0.01=0.9×

7、6=2.1×0.3=7×0.08=1.87×0=0.24×5=0.2×0.5=60×0.5=0.05×1.6=0.5×1.1=0.8×0.5=6÷0.12=1.25×4=4×0.25=0.4÷8=1.8×0.5=8÷0.5=0.32÷16=2.5÷10=6.3÷2.1=0.92÷4=80÷1.6=6.2＋1.7=0.56÷14=1.6÷0.8=6.3÷9=0.15×8=7.2÷0.6=4.2÷1.4=3.9÷3.9=0÷6.81=1.47×0.4=0.4×0.25＝0.8×7＝1.5×7＝1.32×8＝0.7×8＝10.3×2＝5×0.6＝3.21×

8、23＝3.21×2.3＝32.1×2.3＝10×0.05＝0.13×7＝0.21×100＝0.7×4＝0.0