be动词,助动词、情态动词用法

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1、Be动词、助动词和情态动词专题二：Be动词~一般现在时中be动词的用法beamisare（1）am用在I后Iamastudent.I'mhappy.（2）are用于复数主语和第二人称单数（你，您）等情况AreyouChinese?Theyarebasketballplayers.Thebooksareexpensive.（3）is用在主语是第三人称单数或不可数名词等情况Heismyfriend.Thedogisyellow.Timeismoney.be动词的缩写形式Iam=I'mhe/she/itis=he's/

2、she's/it'swe/you/theyare=we're/you're/they'reisnot=isn'tarenot=aren'twhois=who'swhatis=what'sbe动词的在一般现在时中的各种句型1）肯定句：主语+be+其他成分Sheisbeautiful.2）否定句：主语+be+not+其他成分Sheisnotbeautiful.3）一般疑问句（用yes或no来回答）：be+主语+其他成分+？Isshebeautiful？4）特殊疑问句：疑问词+be+主语（其他成分）+？What'syo

3、urname?Who'sthat?be的用法口诀：我用am，你用are,is跟着他、她、它。单数is，复数are，勿忘be的三变化。变疑问，往前提，句末问号莫丢弃。变否定，更容易，be后not莫忘记。疑问否定任你变，句首大写莫迟疑。一般现在时中be动词的用法相对简单，上面的口诀基本包括了be动词的各种问题。Exercises用am/is/are填空1、She（）astudent.2、Hisjacket（）onthetable.3、We（）family.4、-How（）you?-I（）fine,thanks.5、J

4、ackandI（）goodfriends.6、（）sheastudent?7、（）youateacher?I______anEnglishteachernow.They_______gladtoseeeachother.HelenandNancy________goodfriends.Thelittledog_____twoyearsoldthisyear.Look,there________lotsofgrapeshere.There________asignonthechaironMonday.Today__

5、___thesecondofJune.Yesterday______thefirstofJune.It_____Children’sDay.Allthestudents______veryexcited.Theskyblue.Iaboy.There________(be)somewaterinthebottle.amareareareamwasisisisisiswaswere16.Theblackgloves______forSuYang.17.Thispairofgloves______forYangLing

6、.18.Thetwocupsofmilk_____forme.19.Sometea______intheglass.20.Gaoshan'sshirt_______overthere.21.Mysister'sname______Nancy.22.This______notWangFang'spencil.23.______DavidandHelenfromEngland?24.There______agirlintheroom.25.There______someapplesonthetree.26._____

7、__thereanykitesintheclassroom?27._______thereanyapplejuiceinthebottle?28.There_______somebreadontheplate.29.There_______aboy,twogirls,threemenandtenwomeninthepark.30.You,heandI______fromChina.areisareisisisisAreisareAreIsisareare句型转换1.Theyaredoinghousework.(分

8、别改成一般疑问句和否定句)2．Thestudentsarecleaningtheclassroom.(改一般疑问句并作肯定和否定回答)3.Tomisunderthetree.（变为否定句）Aretheydoinghousework?Yes,theyare./No,theyaren’t.Theyaren’tdoinghousework.Arethestudentsclean