语法练习

1.On no account ___ ever leave the baby at home alone.

A.should you
B.you should
C.shall you
D.you shall

2.___ the center of our planetary system was considered as heresy by the church in the MiddleAges.

A.It is the sun and not the earth
B.That the sun and not the earth
C.Being the sun and not the earth
D.The sun and not the earth

3.The reason that his property was confiscated by the country, it ___, was that he was involved in a lot of fraudulent activities during the war.

A.was turned out
B.was being turned out
C.being turned out
D.turned out

4.The director gave me his ___ that he would double my pay if I did my job well.

A.warrant
B.obligation
C.assurance
D.certainty

5.The Christmas tree was decorated with shining ___ such as coloreed lights and glass balls.

A.ornaments
B.luxuries
C.exhibits
D.complements

答案详解

1.[A]【解析】主谓倒装，on no account意为“决不”，属否定意义的词，引导倒装句，所以只有A项正确。句意：你决不应该把小孩一个人放在家里。

2.[B]【解析】主语从句。that引导主语从句，全句的谓语是was considered。句意：太阳系的中心是太阳而不是地球这一事实被中世纪的教会认为是异端邪说。

3.[D]【解析】插入语。it turned out(to be)这里作插入语，意为“证明……是……”。句意：后来证明他的财产被国家没收的原因是，战争期间他参与了诈骗活动。

4.[C]【解析】名词词义辨析。assurance意为“保证，担保”，其他三个名词的意思是：warrant作名词意为“证明，凭证”；作动词有“担保，保证”的意思。此处应为名词，意思不适合本句。obligation“义务”；certainty“肯定”，也都不符合本句意思。句意：主任向我保证，如果我把工作做好，他会给我双倍的工资。

5.[A]【解析】名词词义辨析。ornaments“装饰物”；luxuries“奢侈品”；exhibits“展览品”；complements“补充物”。因此正确答案为A项。句意：圣诞树用彩灯和玻璃球之类的装饰物修饰了起来。