新概念4第7课课后习题及答案.docxVIP

新概念4第7课课后习题及答案

Unit7DCABABACDAAC

新概念英语第4册课后习题:

Multiplechoicequestions多项选择题

Choosethecorrectanswerstothefollowingquestions.

Comprehension理解

1Whathappensifyoushoutonamountainside?

a.Youwillbeabletomeasuredistance.

b.Nothing.

c.Itwilltakealongtimeforanechotocomeback.

d.Youwillhearanecho.

2Youcanmeasurethedepthoftheseaby____.

a.shoutingsoyougetbackanecho

b.tappingonthehullofaship

c.workingouthowlongittakestogetanechofromtheseabottom

d.calculatingthereflection

3Theecho-locationprinciplemeansyoucaneven____.

a.locateanddistinguishdifferentspeciesoffish

b.hearafish”secho

c.improvetheapparatusnowinuse

d.easilycatchdifferentspeciesoffish

4Batsuseecho-locationto____.

a.seewherethey”regoing

b.avoidbumpingintothings

c.avoidflyinginsects

d.emitsqueaks

Structure句型

5Not____soundmadebyanimalsservesaslanguage.(l.1)

a.every

b.each

c.thewhole

d.theentire

6Wehaveonlytoturntothatextraordinarydiscoveryofecho-locationinbatstoseeacase____thevoiceplaysastrictlyutilitarianrole.(11.1-2)

a.which

b.where

c.when

d.why

7____heshoutinthevicinityofawall,anechowillcomeback.(1.4)

a.Should

b.If

c.When

d.Though

8____theecho-soundingapparatuswasborn.(11.7-8)

a.Such

b.Theway

c.That”show

d.Likethis

Vocabulary词汇

9Thevoiceplaysastrictly____role.(1.2)

a.secondary

b.important

c.usual

d.practical

10Asoundmadeby____thehullofaship-(11.5-6)

a.hitting

b.knocking

c.beating

d.bashing

11Thesoundvaries____thesizeandnatureoftheobject.(11.8-9)

a.dependingon

b.relatingto

c.influencing

d.by

12A____offishwilldothis.(1.9)

a.class

b.herd

c.school

d.flock