最新新概念英语第四册课后习题及答案

Structure 句型

Lesson 1

5 in some part of the world people are still____b__ to write

A incapable b impotent c enable d unable

6 they can preserve their history _____d_ down legends

A by hand b by handing c to hand d in hand

7the ____a__ why these legends are useful is that they tell us about migrations

A cause b effect c why d reason

8 there weren't ___a___ of then who could write down what they did.

A any b none c no one d no

Lesson 2

5 it would ____a__ impossible for us to live in this world if insects had no enemies.

A make it b stay c be d have it

6 we owe __c____ to the birds and beast who eat insects.

A a great deal b a lot of c a great many d much of

7 how many spiders are involved _____a_ this work on our behalf?

A at b for c in d to

8 there are many different ___a___ spiders

A sort of b kind of c type of d kinds

Lesson 3

5 earlier climbers liked summits ____c__ had never been climbed before.

A which b which they c that they d unless they

6 _____d_ single aim was getting to the top

A they're b there c their d theirs

7 ___a___ Zermatt and Chamonix,most places were unknown.

A except b unless c without d apart from

8 ____b__ were generally dirty and flea-ridden.

A the few inns that existed b inns like this

C such inns d few inns

Lesson 4

5 several cases have been reported in Russia recently of people ____b__ can read

A whom b that c which d they

6 one day she came into his office and put her hands on the door of the safe ____c__

A as it happened b by chance c perhaps d intentionally

7 _d_____ these tests were being conducted ,she was able to read a newspaper.

A during b on occasion c while d as if

8 Vera couldn't see with her skin ____a__ she was blindfold .

A only b except c as if d unless

Lesson 5

5 the problem,if there is one, __d____ by older people

A created b is created c creates d is creating

6 for one thing ,if you ___a___ a problem,you have a certain identity.

A were b being c had d are

7 ____c__ to be linked with life ,and the origin of things.

A they seem b it seems c this seems d what seems

8 it is ___b___ they are conceited and ill-mannered

A necessary b permissible c possible d likely

Lesson 6

5 if only ____a_ possible for the common people to meet each other.

A it would be b it could be c it were d it might be

6 you play __a__ win

A in order to b in order that c so that d for

7 the village green is the _a__ you pick sides.

A the place b the time c the reason d the cause

8 ____d__ the question of national prestige arises

A the moment b just c as long as d proveding

Lesson 7

5 not __b____ sound made by animals serves as language

A every b each c the whole d the entire

6 we have only to turn to that extraordinary discovery of echo-location in bats to see a case ____a__ the voice plays a strictly utilitarian role

A which b where c when d though

7 __c____ he shout in the vicinity of a wall, an echo will come back.

A should b if c when d though

8 ___d___ the echo-sounding apparatus was born.

A such b the way c that's how d like this

Lesson 8

5 american farmers can't export chickens to europe ___b___ differences in national regulations.

A through b according to c in respect of d because of

6 an electric razor from the eu __a____ sold in the us unless it meets us standards.

A oughtn't to be b can't be c shouldn't be d doesn't have to be

7 america and the eu ____a__ to reach a deal

A are still trying b slways try c tried d were trying

8 the details are __b____ that they may be hard-pressed to get a deal.

A so complex b enough complex c such complexity d too complex

1、六年级共有学生207人，选出男生的2/11 和7名女生参加数学竞赛，剩下的男女生人数相同，六年级有女生多少人。

2、一根钢管长10米，第一次截去它的7／10，第二次又截去余下的1／3，还剩多米？师徒两人合做一批零件，徒弟做了总数的2／7，比师傅少做21个，这批零件有多少个？

3、甲乙两地相距1152千米,一列客车和一列货车同时从两地对开,货车每小时行72千米,比客车快2/7，两车经过多少小时相遇？

4、某班男生人数比全班人数的5/7 多6人，女生人数比全班人数的1/4少4人。全班共有多少人？

5、妈妈买3千克香蕉和2千克梨共付13元，已知梨的单价是香蕉的2/3, 每千克梨多少元？

6、有甲乙两根绳子，甲绳比乙绳长35米，已知甲绳1/9和乙绳的1/4相等，乙绳子长多少米？