Lesson 5 知识点（讲义）-2021-2022年新概念英语第二册 全国

Lesson5单词讲解

1.pigeonn.鸽子

Dove

D■ow

=a

2.messagen.信Msend

amessagereceive/get

amessageleavea

message

anurgentmessage

shortmessageservice=SMS

informationn.[u]

3.distancen.总巨离distantadj.遥远的

differencen.不同，差异differentadj.不同的

importancen.重要importantadj.重要的

confidencen.信心confidentadj.有信心的

conveniencen.方便convenientadj.方便的

4.requestn.要求，请求

Theirrequestisabsurd.We

willrefusetherequest.

5.sparepart备件

sparetime

Lesson5课文&语法讲解

现在完成时vs一般过去时

现在完成时

形式：have/has+done

用法：

1现在全部完成

2现在部分完成

现在完成时

形式：have/has+done

用法：现在的之前

Hehasleft.

1现在全部完成

WehavelearnedEnglishfortenyears.

2现在部分完成

现在完成时

形式：have/has+done

用法：现在的之前

变否定疑问：

Hehasleft.

Hehasnotleft.

Hasheleft?

补充：现在完成时与一般过去时的区别

Hehasleft.

1现在全部完成可以换成一般过去时

Hehasleft,soIcannotfindhimnow.

Helefttwohoursago.

补充：现在完成时与一般过去时的区别

WehavelearnedEnglishfortenyears.

2现在部分完成不能换成一般过去时

WelearnedEnglishfortenyears.???

1Mr.JamesScotthasagarage...andnowhehasjustboughtanothergarage...

现在完成时

have/has+just+done

already

ever

never

现在完成时

肯定“已经”

have/hasalreadydone

Hehasalreadyhadhisbreakfast.

否定“还没有”

have/hasnotdoneyet

Hehasnothadhisbreakfastyet.

2....sohehasjustboughttwelvepigeons.

现在完成时

3.Yesterday,apigeoncarriedthefirstmessagefrom...to...

一般过去时

4.Uptonow,Mr.Scotthassentagreatmanyrequests...andanotherurgent

messagesfromonegaragetotheother.

uptonow=uptillnow

Sofar

one...theother

some...others

5.5thiswav,hehasbegunhisownprivate“telephone"service.

beginbeganbegun

one'sown+n

Lesson5知识拓展

Keypoints:

现在完成时

have/has+done

现在的之前

Uptonow,theprogramthousandsofchildrenwhowouldotherwisehavedied.

A.wouldsave

B.saves

C.hadsaved

D.hassaved

Uptonow,theprogramthousandsofchildrenwhowouldotherwisehavedied.

A.wouldsave

B.saves

C.hadsaved

D.hassaved

-Look!Somebodythesofa.

-Well,itwasn'tme.Ididn'tdoit.

A.iscleaning

B.wascleaning

C.hascleaned

D.hadcleaned

-Irememberyouwereatalentedpianistatcollege.Canyouplaythepianoforme?

-Sorry,Ipianoforyears.

A.don'tplay

B.wasn'tplaying

C.haven'tplayed

D.hadn'tplayed

-Alvin,areyoucomingwithus?

-I'dloveto,butsomethingunexpected.

A.hascomeup

B.wascomingup

C.hadcomeup

D.wouldcomeup

Formanyyears,peopleelectriccars.How