Most people are ______ building a paper factory near here. They are worried that the river will get polluted.

A. for B. with C. against D. beyond

C 【解析】 結(jié)合題干中的“他們擔(dān)心河流被污染”可知，大多數(shù)人反對(duì)在這附近建一家造紙廠。故against符合題意。

Your grandfather ________ be over sixty. But he looks like a young man!

A. can’t B. can C. mustn’t D. must

D 【解析】句意：你的祖父一定六十多歲了。但是他看起來(lái)像一個(gè)年輕人！can’t不可能，表示有把握的推測(cè)；can能，表示能力；mustn’t禁止；must一定，表示有把握的推測(cè)。根據(jù)Your grandfather可知你的祖父，年齡應(yīng)是很大的，故有把握的推測(cè)，故用must，故選D。

Miss Green sounded _______ on the phone. She offered to help us with our studies.

A. politely B. friendly C. properly D. smoothly

B 【解析】句意：在電話上格林小姐聽起來(lái)很友好。她主動(dòng)提出要幫助我們學(xué)習(xí)。politely禮貌地；friendly友好地；properly正確地；smoothly光滑地。根據(jù)She offered to help us with our studies.可知她主動(dòng)提出要幫助我們，因此她是友好的，故選B。

These physics problems are _______ difficult that _______ students can solve them.

A. such; few B. such; little C. so; few D. so; little

C 【解析】句意：這些物理問(wèn)題如此地困難，以至于很少有學(xué)生能解決它們。such+a/an+單數(shù)名詞+that+從句“如此……以至于……”，so+形容詞/副詞+that+從句“如此……以至于……”。此處修飾形容詞difficult，故用副詞so，排除AB兩項(xiàng)。few很少的，修飾可數(shù)名詞；little很少的，修飾不可數(shù)名詞；此處修飾可數(shù)名詞students，故用few，故選C。

—I’m still wondering which school our son should choose.

— him alone, he can make up his mind.

A. Leave B. Keep C. Let D. Allow

A 【解析】句意：-我還在想我們的兒子應(yīng)該選擇哪一所學(xué)校。-讓他自己想想，他可以做決定。leave離開；留下；keep保持，保存；let讓；allow允許。這里的leave sb. alone是固定短語(yǔ)，讓某人一個(gè)人待會(huì)兒，讓某人自己想想。故應(yīng)選A。

— Can I speak to Mrs Green？

— Sorry, wrong number. Please to 114 and check the number.

A. put out B. put off C. put through D. put away

C 【解析】句意：——我可以找格林女士接電話嗎？——對(duì)不起，打錯(cuò)電話了。請(qǐng)撥打114，核查一下號(hào)碼。put out撲滅；put off延遲；put through接通；put away收拾起來(lái)。根據(jù)check the number可知要核對(duì)號(hào)碼，應(yīng)接通114，來(lái)查一下號(hào)碼，故選C。

— Be careful, _ you will make fewer mistakes.

—Thanks for encouraging me.

A. but B. or C. and D. so

C 【解析】句意：——認(rèn)真點(diǎn)，你將會(huì)犯更少的錯(cuò)�！�—謝謝你鼓勵(lì)我。but但是，表示轉(zhuǎn)折關(guān)系；or或者，表示選擇；and那么，因此，表示結(jié)果；so所以，表示因果關(guān)系。此處表示認(rèn)真的結(jié)果是出錯(cuò)少，故選C。

_______ we cannot change yesterday, we can learn lessons to face tomorrow.

A. Though B. As C. Since D. Unless

A 【解析】句意：盡管我們無(wú)法改變昨天，但是我們可以吸取教訓(xùn)來(lái)面對(duì)明天。though盡管，引導(dǎo)了讓步狀語(yǔ)從句；as當(dāng)……時(shí)候，引導(dǎo)時(shí)間狀語(yǔ)從句；since因此，引導(dǎo)原因狀語(yǔ)從句；unless除非，引導(dǎo)條件狀語(yǔ)從句。結(jié)合句意，前半句表示我們無(wú)法改變昨天，后半句表示我們可以面對(duì)明天，前后是讓步關(guān)系，故用連詞though。故選A。

—There are so many swimmers swimming in the swimming pool.

—Yes, and sixty percent _ children.

A. is B. are C. was D. were

B 【解析】句意：——在游泳池里有那么多游泳者正在游泳�！�—是的，而且百分之六十是孩子。根據(jù)謂語(yǔ)are可知此處用一般現(xiàn)在時(shí)，故排除CD兩項(xiàng)。此處的sixty percent代指的是百分之六十的游泳者，故謂語(yǔ)用復(fù)數(shù)形式，故選B。

________ amazing music! Tan Dun made it just by controlling the speed of water flow.

A. How B. How an C. What D. What an

C 【解析】句意：多么令人驚訝的樂曲�。∽T盾通過(guò)控制水流的速度來(lái)完成的這個(gè)曲子。此處修飾不可數(shù)名詞music的感嘆句，故用what，故選C。