C.substantial

D.potential

正确答案：substantial

第六章单元测试

1、The difficult curriculum， and fierce competition have；a serious ；on；students’ physical and mental health.

A.done ...harm

B.taken ...toll

C.caused ...damage

D.had ...effect

正确答案：taken ...toll

2、Animal fats and sugar ；to a weight problem and can be a factor in heart；disease.

A.yield

B.cause

C.contribute

D.amount

正确答案：contribute

3、Thousands of miles apart， we met with quarrels， and sometimes even a cold war，but we still ；to love.

A.hold on

B.keep on

C.count on

D.get on

正确答案：hold on

4、Encourage your child to reach a（n） ；between what he wants and what you；want.

A.harmony

B.agreement

C.balance

D.compromise

正确答案：compromise

5、Competition in the financial market has ；profits.

A.eroded

B.increased

C.boosted

D.corrupt

正确答案：eroded

第七章单元测试

1、Nowadays；all governments try their best to serve their people and fight against（）.

A.corruption

B.enemies

C.environment

D.efficiency

正确答案：corruption

2、Some；students in our universiy have been（）for cheating on their；final exams.

A.forced

B.failed

C.expelled

D.tested

正确答案：expelled

3、We can use special machines to detect（）money.。

A.false

B.wrong

C.bad

D.fake

正确答案：fake

4、It’s（）to break into people’s house to take pictures.。

A.impolite

B.illegal

C.allowed

D.punished

正确答案：illegal

5、Punishments for（）which is a form of intellectual dishonesty differ from country to country.

A.stealing

B.copy

C.plagiarism

D.absence

正确答案：plagiarism

第八章单元测试

1、The；bulletin board has become the children’s favorite， on which they often display their creative drawings.

A.magnet

B.magnetic

C.magnetically

D.magnetize

正确答案：magnetic

2、If students don’t study their lessons as they were told， ；will show up quickly when they take an exam.

A.deficiency

B.deficit

C.deficiencies

D.defect

正确答案：deficiencies

3、A firefighter tried to get into the burning house， but he was forced to；by the intense heat.

A.retreat

B.retreating

C.retreated

D.being retreated