Unit 13 Were trying to save the earth！Period 5 单元语法专练

Unit13We’retryingtosavetheearth！Period5单元语法专练重点①现在进行时的结构及用法；重点②

usedtodosth.短语的用法；重点③被动语态在一般现在时、一般过去时和一般将来时中的结构和用法，以及含情态动词的被动语态；重点④现在完成时的结构及用法。一、语法点单句特训。

(

)1.Look！Somechildren

onthebeach.

A.islying

B.lying

C.arelying(

)2.—Thereisgoingto

abasketballmatchtomorrowafternoon.

—Great！Let’sgoandwatchit.A.is

B.have

C.be

C

C

(

)5.He

eatjunkfood，butnowhe

eatingmorevegetablesandlessmeat.

A.usedto；usedto

B.usedto；isusedto

C.isusedto；usedto(

)3.Howlonghaveyou

thisstorybook？

A.bought

B.borrowed

C.had

(

)4.HongKong

tobeagoodplaceforeatingdeliciousfood.

A.knows

B.knew

C.isknown

B

C

C

(

)6.A.eventhough

B.asif

C.sothat(

)7.A.they

B.them

C.their

A

二、语法选择。Howtodealwiththewasteisagreatproblemfortheworldtoday.Wastemustbetreatedproperly

6

itwillnotbecomeadangertolife.Unfortunately，insomecountries，wastefromfactoriesisstillthrownstraightintorivers.Peoplewhousethewaterfromtheseriversoftengetsick.Whentheseriversfinallyreachthesea，

7

pollutetheocean.

C

(

)8.A.pour

B.ispoured

C.poured(

)9.A.safe

B.safely

C.safety(

)10.A.suggests

B.suggest

C.weresuggesting

B

A

Inmanycountrieswithcoasts(海岸)，humanwaste

8

directlyintotheseawithoutbeingdealtwith.Thisisnot

9

.Beachesmaybepolluted，althoughtheseawatercanbreakdownthewaste.Soscientists

10

peopleshouldtakethewastefarouttoseainships.Therethewindandwavescanbreakitdown.

B

(

)11.A.stopped

B.stop

C.tostop(

)12.A.One

B.It

C.That(

)13.A.be

B.is

C.are

A

B

Manyyearsago，aninternationallawwaspassed

11

peopleputtingwasteintothesea.

12

isnowagainstthelawtoputallwasteintothesea.Rubbishlikeplasticcan’t

13

thrownintothesea.

C

Otherwastecanbeputintotheseaeither19

14

morethan40kilometersfromland，dependingonthenatureofthematerials.

Theproblemofdealingwithwastewillbecomesoseriousthatseveralinternational

15

havebeensetuptoprotecttheenvironmentandcontrolthepollution.

(

)14.A.a