高一英语Unit 18考点透视与点拨
1. New Zealand has a mild sea climate，while the north is subtropical. （Reading）
[考点1] climate此处意为气候，既可作可数名词，又可作不可数名词。它还有有某种天气情况的地区之意。
[考例] For the sake of her daughters health，she decided to move to a warm ______.（上海2002春）
A. weather B. temperature
C. season D. climate
[点拨] 选D.句意为为了女儿的健康，她决定搬到暖和的地方去。此处climate为上述的第二个释义。 weather意为天气，是不可数名词；temperature意为气温，温度，体温，不符合句意；season意为季节，不能和move搭配。
[考点2] 句中while表示对比，意为而，当却。
[考例] I do every single bit of housework ______ my husband Bob just does the dishes now and then. （NMET 2004 III）
A. since B. while C. when D. as
[点拨] 选B.前后两个分句构成对比关系，故用while.
2. The North Island is famous for an area of hot springs，some of which throw hot water high into the air. （Reading）
New Zealand has a population of about 3.8 million people，of which about fourteen percent are Maori.（Integrating Skills）
[考点] of which引导的是非限制性定语从句。在定语从句中，基于意义上的需要，可以在some，any，several，many，most，all，both，neither，none，half，one等词和形容词比较级、最高级之后接of whom或of which.
[考例1] The factory produces half a million pairs of shoes every year，80% ______ are sold abroad. （辽宁 2004）
A. of which B. which of
C. of them D. of that
[考例2] There are altogether eleven books on the shelf，______ five are mine. （NMET 2004 IV）
A. on which B. in which
C. of which D. from which
[考例3] There are two buildings，______ stands nearly a hundred feet high. （湖北 2004）
A. the larger B. the larger of them
C. the larger one that D. the larger of which
[点拨] 考例1选A； 考例2选C； 考例3选D.
3. It is a good thing that New Zealand helps the Maori to keep their own language and culture. （Language Study）
[考点] 句中it是形式主语，真正的主语是that引导的从句。
[考例1] In fact ______ is a hard job for the police to keep order in an important football match.（上海2001）
A. this B. that C. there D. it
[考例2] The Foreign Minister said，______ our hope that the two sides will work towards peace.（北京 2004）
A. This is B. There is
C. That is D. It is
[点拨]考例1和考例2均选D.当句子的主语是动词不定式或从句时，通常把it用作形式主语放在句首而把真正的主语不定式或从句放在后面。
4. Some farmers have turned to keeping deer （Integrating Skills）
[考点] turn to是固定短语，此处意为开始干，转向，to是介词，其后接名词或动词？鄄ing形式。turn to还有找（某人寻求帮助等）；查阅（某书），求助于之意。
[考例] In the dark street，there wasnt a single person ______ she could turn for help. （MET 1992）
A. that B. who C. from whom D. to whom
[点拨] 选D.此处主要考查对固定短语turn to sb. for help的识别。原句可还原为there wasnt a single person whom she could turn to for help.此处为介词to提前，构成介词+关系代词引导的定语从句。关系代词whom指代先行词a single person，在从句中作宾语。
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