现在英语水平的高低很大程度上决定着毕业生是否能找到一份高薪的工作，为帮助大学生更好地学习英语，特提供以下资料：
1.____native to North America, corn has now spread all over the world.
A. In spite of
B. That it is
C. It was
D. Although
2. Our civilization cannot be thought of as____in a short period of time.
A. to have been created
B. to be created
C. having been created
D. being created
3. We feel it is high time that the Government ____something to check the inflation.
A. did
B. do
C. should do
D. would do
4. It has been proposed that we____our decision until the next meeting
A. delayed
B. delay
C. can delay
D. are to delay
5. Hurricanes are severe cyclones with winds over seventy?five miles an hour ____originate over tropical ocean waters.
A. which
B. who
C. where
D. how to
谜底:
1. D)
玉米虽原产于北美洲，但此刻已普遍全世界。
四个选项中，B)和C)不合理。A)项的in spite of 是复合介词，后接名词。D)项的although是连词，后接从句，在本句中接的是一个省略主语的从句。
2. C)
不应把我们的文明看作是短期内缔造出来的。
as 在这里是介词，后面应接名词性质的词，create的动作是曩昔发生的，所以选C)。
3. A)
我们认为该到政府采纳法子按捺通货膨胀的时辰了。
it is high time that后面接虚拟语气，时态用一般曩昔时，意为“该到…时辰了”。
4. B)
有人建议我们应将我们的抉择推迟到下次会议作出。
在suggest, propose, demand ,insist 等动词后面的宾语从句中，应使用(should)+动词真相的虚拟语气。
5. A)
飓风是生成于热带海洋水域上空、风速磁缦憧小时75英里以上的强烈气旋。
关系代词which指导的定语从句润色名词winds.