高一英语必修一unit2 同步练习题（人教版）
三、知识精讲：
（一）重点词汇。
1. base
1) v. one should always base his opinion on facts.
be based on/upon
the film is based on a novel by lao she.
2) n. we camped at the base of the mountain.
abcd is the base of the pyramid.
our company’s base is in beijing.
2. recognize
they recognized this man without difficulty.
they don’t recognize the new government.
be recognized as 被承认为 recognize sb. to be 承认某人是……
【典型例题】
① —oh, it’s you! iyou. -i’ve just had my hair cut, and i’m wearing new glasses.
② though they hadn’t met for many years， they __each other at first sight.
③ lincoln is recognized __one of the greatest presidents in america.
3. command
command sb. to do sth. 命令（要求）某人做某事
h**e a good command of … 对……精通。
command that … should) +动词原形。
【典型例题】
he commanded that all the gates
a. should shut b. would be shut c. shut d. be shut
4. request
用作名词，意为“请求”，是可数名词。如：
it is my last request — i shall never ask you anything again.
这是我的最后一个请求，我再也不会向你提任何要求了。
she refused all requests for an interview.
她拒绝了所有的采访请求。
用作动词，意为“请求；邀请”。这时，其后可以跟名词、不定式的复合结构以及从句作宾语。尤其要注意，当从句作宾语时，从句谓语常用“(should) +动词原形”结构。如：
you h**e to request permission if you want to take any photos here.
如果你想要在这儿拍照的话，需要申请准许。
request sth. of/ from sb. 向某人请求某物
request sb. to do sth. 请求某人做某事
at one’s request 应某人之请求
request that … should) +动词原形。
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