A. arrange choose 【答案】D
B. differ C. select D.
【解析】choose指一般意义上的选择。select指“精选”
②It was so dark in the cinema that I could hardly ________ my friend. A. turn out pick out
B. bring out
C. call out
D.
考点-16. let off
【教材原句】However，many other human activities also let off carbon gases.(P39)然而，人类的许多其他活动
也会释放出二氧化碳。
【例句研读】根据英语句子完成汉语句子
①The boys were letting off fireworks to celebrate the coming New Year. 男孩子 来庆祝即将到来的新年。 ②The old woman prayed to be let off. 这个老太太祈祷 。 ③She let out a scream of terror. 她 叫喊。
④Don't worry. I'll never let you down(=make you disappointed). 别担心。我决不会 。
⑤Protecting the air, let alone improving it, is a challenge. ，现在就是保护它也很难。
【自主归纳】
排放；燃放，(使)爆炸；放过，宽恕let off 使失望；降低let ... down 更不用说let alone 泄露，发出；出租；放大let out 【即时巩固】完成句子 ①She ____________(没被处罚)with a warning. ②The boys are fond of ____________(燃放)fireworks.
③At the sight of the accident，she ____________(发出)a cry of terror. ④This machine won't ____________(让你失望).
⑤The baby can not even walk，____________(更不用说)run.
【答案】①was let off ②letting off ③let out ④let you down ⑤let alone 二、经典句型
考点-1.it+连系动词be+表语+that从句
【教材原句】It is clear that you are very concerned about the present situation of our environment.(P23)
很显然，你们对环境的现状很担忧。
【句法分析】本句中使用了“it+连系动词be+表语+that从句”的句型。句中“that”
引导的是主语从句。It代替真正的主语作形式主语。
【考点聚焦】考查的重点在于引导主语从句的连接词。 【即时巩固】单项选择题
①(2020天津卷)It is obvious to the students ______ they should get well
prepared for their future.
A. as that
B. which
C. whether
D.
②(2020浙江卷) It is uncertain side effect the medicine will bring about, although about two
thousand patients have taken it.
A. that B. what C. how D. whether
考点-2….+of+关系代词引导的非限制性定语从句及其变形
【教材原句】However, I do agree that we should produce more things from
materials that have been recycled，and less from raw materials, the supply of which is growing smaller and smaller.(P23) 然而，我非常赞同我们应该利用回收材料制造更多的产品，减少原材料的使用，因为原材料的供应越来越紧张。
【句法分析】本句中使用了“the+名词+介词+which非限制性定语从句”的句型。 【考点聚焦】该结构的几种变形：
①不定代词＋介词＋关系代词
Last week, only two people came to look at the house, neither
of whom wanted to buy it.
②数词＋介词＋关系代词
The factory produces half a million pairs of shoes every year, 80% of which are sold abroad. ③the＋名词＋介词＋关系代词
The man pulled out a gold watch, the hands of which were made of small diamonds.
注意：本句中的“the hands of which”还可以说出成“of which the hands”或“whose hands”。
④the＋形容词比较级(最高级)＋介词＋关系代词
There are two buildings, the larger of which stands nearly
a hundred feet high.
⑤介词＋whose＋名词
Last month, part of Southeast Asia was struck by floods, from
whose effects people are still
suffering.
【即时巩固】单项选择题
①(2020四川卷)In our class there are 46 students, _______ half wear glasses.
A. in whom
them
B. in them C. of whom
D. of
②(2020江苏卷) The newly built café, the walls of_______ are painted light green, is really a peaceful place for us, specially after hard work.
A. that
D. which
B. it C. what
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