高二英语下学期期末辅导Ⅲ北师大版

Unit 21 Module 7重点点击
【考点考例一】 in turn的用法
People try to avoid public transportation delays by using their own cars, and this creates further problems. (2007湖北)
A. in short
B. in case
C. in doubt
D. in turn
【知能进阶】
in turn表示“轮流，依次；反过来”。

如：
Interest rates were cut and, in turn, share prices rose.
Each of us in turn had to describe how alcohol had affected our lives.
名词turn还可以用于下列短语：
It is one’s turn to do sth轮到某人做某事；by turns轮流；take turns to do=take turns in doing轮流干，如：
I think it’s our turn to drive the kids to school this week.
Dan and I usually take turns to cook.
We took turns in pushing the bike along.
【能力拓展】
英语中经常出现的“in+名词”短语还有：in return作为回报；in all共计；in fact 实际上；in short简而言之；in case万一；假使；in doubt感到怀疑的。

【实例对接】 Global warming refers to an average increa se in the Earth’s temperature that, in turn, leads to climate change. (P6)
【考例答案】 D
【考点考例二】 quantity的用法
—Why does the lake smell terrible?
—Because large quantities of water . (2009福建)
A. have polluted
B. is being polluted
C. has been polluted
D. have been polluted
【知能进阶】
large quantities of表示“许多，大量”，后接复数名词或不可数名词，该短语作主语，谓语动词应与quantities一致，用复数；a large quantity of意思相同，但是谓语应用单数形式。

如：
A quantity of nuts was on the table.
Large quantities of information have been offered since the organization was built.
【能力拓展】
表示“许多，大量”的短语还有：a lot of, lots of, plenty of，常修饰可数名词或不可数名词；quite a few, a large number of常修饰可数名词；a large amount of, a great deal of常修饰不可数名词。

【实例对接】 ..if we continue to produce carbon dioxide and other gases in such huge quantities, we are condemning life on Earth…(P6)
【考例答案】 D
【考点考例三】 result的用法
Jenny nearly missed the flight doing too much shopping. (2009全国II)
A. as a result of
B. on top of
C. in front of
D. in need of
【知能进阶】
result用作动词主要搭配有：
1. result from表示“由……造成；起因于”。

如：
His difficulty in walking results from a childhood illness.
2. result in表示“造成；导致”。

如：
Icy road conditions in Teesdale resulted in two roads being closed.
【能力拓展】
as a result是介词短语，表示“因此，结果是”，用于前后两个句子的衔接。

as a result of表示“因为……；作为……对……的结果”，后接名词或代词。

如：
He didn’t work hard , as a result he failed his exam.
Profits have declined as a result of the recent drop in sales.
【实例对接】As a result, a hotter ocean causes more powerful winds. (P11) 【考例答案】 A。