一、单项填空
1.While income worry is______rather common problem of the aged,loneliness is another problem that ______ aged parents may face.
A.a;/ B.the;/
C.a;the
D.the;the
解析:考查冠词的用法。第一个空用不定冠词表示泛指与后句的another相对应;parents是复数名词表示泛指,因此其前不用冠词。句意:虽然收入的担忧是老年人普遍存在的一个问题,而孤独是老年人可能面对的另一个问题。
答案:A
2.Jack came from a poor family,so his parents had to ______ a lot to pay for his education.
A.accuse
B.qualify
C.purchase
D.sacrifice
解析:考查动词词义辨析。sacrifice sth.to do “以牺牲……做某事”;accuse常与of连用,表示“控告”;purchase“购买”;qualify“使合格,使具备资格”。
答案:D
3.As is known to us all,green employees cannot develop well ______ they lack chances of practicing.
A.before
B.when
C.while
D.unless
解析:考查连词的特殊用法。when在这里表示条件,相当于if “如果”。句意:众所周知,如果没有锻炼的机会,没有经验的员工是不能有很好的发展的。
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