语法练习

1.Passengers may leave bulky articles under the stairs ___ the conductor's permission.

A.at

B.with

C.on

D.in

2.His parents never intended ___ together with him though they hoped to see him off.

A.live

B.living

C.to have lived

D.to be living

3.You don't have to worry ___ we are here.

A.while

B.even if

C.though

D.until

4.The population of Pennsylvania increased from 50,000 in 1730 to more than 200,000 in 1763, ___ to the thousands of Scotch Irish.

A.in effect

B.in consequence

C.in large part

D.at large

5.It is due to the invention of the computer that man has been able to work so many wonders in the past few years. A case ___ is the successful launching of space shuttle.

A.in point

B.in question

C.in a way

D.in brief

答案详解

1.[B]【解析】介词。with one's permission意为“得到某人的允许”。句意：旅客们在得到列车员的允许后把沉重的行李放在台阶下。

2.[B]【解析】动词搭配。intend doing sth.意为“想要做某事”。句意：他的父母尽管希望经常见到他，却从不想和他住在一起。

3.[A]【解析】连词。while在这里相当于“as long as”，其余选项均不符合题意。句意：只要我们在这里，你就不用担心。

4.[C]【解析】介词与名词固定搭配。in large part表示“主要的”，相当于mainly；in effect意为“实际上，实际”；in consequence意为“因而，结果”；at large意为“大体上”。根据题意，只有C项正确。句意：宾夕法尼亚的人口从1730年的5万增加到1763年的20万，主要是由于苏格兰和爱尔兰人混血的后裔造成的。

5.[A]【解析】介词与名词固定搭配。in point意为“恰当的，切题的”；a case in point意为“恰当的例证”；in question意为“正在被谈论的，正在被考虑的”；in a way意为“从某种意义上说”；in brief意为“简言之”。只有A项正确。句意：计算机的发明使得人类在过去几年中创造了许多奇迹。一个恰当的例子就是航天飞机的成功发射。