牛津英语七年级下unit4语法.doc
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牛津英语七年级下unit4语法.doc
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Unit4Savethetrees
二,掌握下列句子释义:
1.beharmfultosb=doharmtosb=bebadforsb(对...有害)
2.Thanksbfor(doing)sth=thanksforsb(doing)sth(感谢某人做某事)
3.Alot=verymuch;alotof=many/much(很多)
5.Too...to=so...that=not...enough(太...以至于)
6,bein(great)danger=benotsafe(处于危险)
7.Lookafter(well)=take(good)care(照顾)
语法
现在进行时:
一、用法
1.表示说话时正在进行的动作。
常和now,Look!
Listen!
。
Eg1.Iamreadingabooknow.
Eg2.Look!
Theyarehavingabasketballmatch.
Eg3.Listen!
Heisplayingthepiano.
Eg4.It’s7:
00pm.TheGreensarewatchingTV.
2.表示现阶段正在进行着的动作但说话时不一定正在进行。
Eg1.Heisworkinginashoefactorythesedays.(临时性的工作)
Eg2.Mr.Greeniswritinganothernovel. (说话时并未在写,只处于写作的状态。
)
3.表示在按计划要进行的动作。
即用现在进行体表示将来要发生的动作。
但一般要与将来时间连用,而且仅限于少量动词。
例如:
come,go,start,arrive,leave,stay等表移动的词。
Eg1.Mr.SmithisleavingforLondontomorrow.
Eg2Areyoustayingheretillnextweek?
二、构成(肯定,否定,一般疑问,特殊疑问)
1、主语+be+现在分词ThestudentsofClassTwoaresinging.二班的学生正在唱歌。
2、主语+be+not+现在分词Iamnotlookingattheblackboard.我没有正在看黑板。
3、be+主语+现在分词Isshedancing?
她正在跳舞吗?
4、特殊疑问词+be+主语+现在分词Whatareyoudoingnow?
你正在做什么?
三、注意动词的现在分词的变化。
动词现在分词构成:
1.正常变化是在动词原型后加ing
如:
read----reading; drink---drinking; eat---eating; listen---listening
jump---jumping; wear---wearing; grow---growing; collect---collecting
2.特殊变化:
1)以e结尾的动词,去掉e再加ing
如:
write---writing; make---making;ride---riding; take---taking
2).以重读闭音节结尾的动词,如果末尾只有一个辅音字母,(只有一个元音字母,而其后跟有一个辅音字母时)要双写结尾的辅音字母再加ing
例如sit---sitting;swim---swimming;put---putting;run---runningget----getting
现在进行时专练
一、写出下列动词的现在分词
stand_________swim_________play__________skate_________run__________ride__________come_________sing__________have_________write________dance_________sit___________
二、 用括号中动词的适当形式填空:
1. My parents _______(watch)TV now.
2. Look. Three boys _______(run).
3. What _______ your mother _______(do)now?
4. _______ your dog _______ now?
(sleep)
5. _______ you _______(listen)to music?
Yes, I am.
6. Look, Miss Chen _______ football.(play)
7. Tom and his sister _______(wait)for you over there.
8. Now Class 3 and Class 4_______(have)a test.
9. Listen, someone _______(sing)in the classroom.
10. ——Where is Zhang Yan?
——She _______(talk)with her teacher in the teacher’s office.
三.选择填空:
( )1. Who ______ over there now?
A. singing B. are sing C. is singing
( 2. It’s nine ten. The students ______ a music class.
A. have B. having C. are having
( )3. Listen!
The boy _______.
A. crying B. is crying C. cries
( )4. Don’t talk here. Grandparents ______.
A. sleep B. is sleeping C. are sleeping
( )5. Is the man _______ tea or milk?
A. drinks B. drink C. drinking
三、根据提示完成下列句子
1.Thestudents_____________(正在上英语课)
2.Somegirls__________________(正在跳舞)
3.I_______________________(正在骑自行车)
4.Mymother_________________(正在做家务)
5._______theboys__________(正在打篮球吗)
课堂作业
一、用所给词的正确形式填空。
1.Waterpollutionis________(harm)toourhealth.
3.Judyis________(collect)somefactsforaclassprojectonpollution.
4.Weallknowthattigersarein______now.(dangerous)
5.Doyouenjoy________(breathe)freshair?
6.I______very______________(interest)playingthepiano.
7.Everyyear,people_______(destroy)manyforests.
8Look!
The_______ofthattreearetoolong,Theyreachthewindowofourlivingroom(branch)
9Treesare_________plants,sopeopleusethemtomakealotofthings(use)
10First,theworkersputsomesoilinthe_________(contain)
二、单项选择。
1.OurEarthwillbe_________ifwegooncuttingdownmillionsoftreeseveryyear.
A.ingreatdangerB.dangerC.dangerouslyD.outofdanger
2.Studentswillmakegreatprogress(进步)ifthey__________asubject.
A.areinterestedinB.areinterestingC.areinterestedD.areinterestingin
3.Look!
Thebaby________happilynowbecausehe________youarehisfriends.
A.similes;isknowingB.issmiling;isknowing
C.issmiling;knowsD.smiles;knows
4.Thetrain__________forBeijingsoon.Thepassengerswhoarestillontheplatform(月台)shouldgetonthetrainatonce.
A.leavesB.isleavingC.leftD.leaving
5.Booksgiveusknowledge(知识)andmakeus________happy.
A.feelingB.feelC.feelsD.felt
6.They’rethebiggestandoldest________thingsonEarth.
A.lifeB.liveC.livingD.alive
7.Theboyenjoys___________intheevening.
A.playtheguitarB.playingtheguitarC.playingguitarD.playguitar
8.Look,who__________ontheplayground?
A.isplayingB.playingC.plays D.played
9.Itisgoingtorain.You’dbette
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