1. Despite his wealth, he worked to make a career in science.（Reading）

【考点】wealth意为“财富”，多用作不可数名词。

【考例】He gained his ______ by printing______ of famous writers.  (NMET 1995)

A. wealth; work      B. wealths; works

C. wealths; work     D. wealth; works

【简析】根据wealth的词性，可排除B、C；works意为“作品，著作”。（注意：斜体部分为最佳选项。下同）

2. Secondly, the purpose of the expedition was to record, classify and describe all plants and animal life observed during the trip.  （Reading）

【考点】动词不定式可用作表语，表示主语的具体内容，尤其可用于指未发生的情况。

【考例】The purpose of new technology is to make life easier, ______ it more difficult. (上海2005春)

A. not making     B. not make  

C. not to make    D. nor to make

【简析】两个或多个不定式表示并列或递进关系时，后面的不定式符号to常常省略，但当它们表示对比关系时，不定式符号to常常保留。本题题意为“新技术的目的是使生活更容易，而不是让生活更艰难”，两个不定式之间是对比关系。

3. As a reward for his contribution to botany, Joseph Banks had a flower named after him.（Grammar）

【考点】reward可用作动词或名词。意为“报酬；报答；奖赏；赏金”。

【考例】A ______ will be offered for information leading to the arrest of the bank robber.  (上海 1998)

A. price  B. fund  C. reward   D. profit

【简析】题意为“提供有关抓获那个银行抢劫犯信息的人将得到奖金（reward）”。price价格；fund基金; profit赢利；利益。

4. It was Darwin’s visit on the Beagle to the Galapagos Isles that gave him the key to his new theory. （Integrating Skills）

【考点】强调句的结构为：It is / was +被强调的部分（主语、宾语或状语等）+ that / who...。

【考例1】It is these poisonous products ____ can cause the symptoms of the flu, such as headache and aching muscles.  (上海2003)

A. when        B. that         C. how        D. what

【简析】题干为强调句型，强调句子的主语。

【考例2】It was after the invention of printing ______ to publish large numbers of books and pictures.   (上海2005春)

A. were people able      

B. that people were able

C. when were people able     

D. people were able

【简析】题干为强调句型，强调句子的状语。

5. He had found the key to explaining differences between species. （Integrating Skills）

【考点】key意为“钥匙；关键；答案”，后跟由to引起的介词短语。to后常接名词、代词或?鄄ing形式，不可接动词原形。

【考例】 —How do you deal with the disagreement between the company and the customers?

—The key ______ the problem is to meet the demand ______ by the customers.  (北京2002)

A. to solving; making  B. to solving; made

C. to solve; making   D. to solve; made

【简析】第一空处表示“解决问题的关键”，故填to solving； demand和make之间为被动关系，应用过去分词made作后置定语。

6. If plants from one habitat were moved to the other type of habitat, they changed their appearance and adapted to the new environment. （Integrating Skills）

【考点】appearance为动词appear的名词形式，既可表示“外表，外貌”，也可作“出现”解。

【考例】The environmentalists and wild goats’______ on the vast grasslands was a good indication of the better environment. (上海 2004)

A. escape      B. absence      

C. attendance       D. appearance

【简析】此句意为 “环境保护论者和野山羊在广阔的草原上的出现（appearance）是环境好转的迹象”。escape逃跑；逃避；absence缺席；attendance出席；照料。