1. It is reported that by the end of next month the bridge ____.?
A. will be built ? ? B. has been built ? ? C. will have been built ? ? D. will have built

解析：由by the end of判斷應(yīng)選完成時，next month 是將來標(biāo)志，故選擇C. ?

2. Our teacher has a strict rule. She said yesterday that all the students ___ to class on time.?
?A. came ? ? B. might come ? ? C. must come ? ? D. must have come ?
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解析：如果從句中所表示的是一個客觀事實或科學(xué)真理，從句謂語動詞不受時態(tài)原則限制，只能（永遠(yuǎn)）用一般現(xiàn)在時，通常根據(jù)常識就可以確定答案。故選C?
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3. One of the requirements for a fire is that the material ____ to its burning temperature?
A. be heated ? B. is heated ? ? C. would be heated ? ?D. to heated
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解析：A)項requirement 這個詞和idea, suggestion等一樣，要求從句里的謂語動詞用（should）+動詞原形。故選A?
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4. ____ what may, we’re not going to make any concessions to his unreasonable demands.??
A. Come ? ? ? ? ?B. Came ? ? ? ?C. Coming ? ? ? ? D. Having come
?
解析：【句意】無論發(fā)生什么事情，我們都不會對他無理的要求做出讓步。?
【難點】come what may 是一個固定的用法，其中come總是用原形動詞，在這一用法中，主謂必須倒裝，此句相當(dāng)于whatever may happen （不管發(fā)生什么情況）。?
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5. Every means ____ tried out but never with success, as far as my knowledge goes.?
A. is ? ? ? ? ?B. are ? ? ? ? C. has been ? ? ? ? ? ? D. have been
?
解析：【句意】就我所知，每種方法都試過了，但都沒有成功。?
【難點】means雖以s結(jié)尾卻是單數(shù)形式，因此謂語動詞應(yīng)選用第三人稱單數(shù)。故選C
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6. He concluded his speech with a remark that failure ____the mother of success.
A. is ? ? ? ? B. were ? ? ? ? ?C .was ? ? ? ?D. must be .
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解析：【句意】他用―失敗乃成功之母‖這句話結(jié)束了他的發(fā)言。?
【難點】表示客觀事實或普遍真理時，句子通常用一般現(xiàn)在時，此類句子的時態(tài)不受其它分句時態(tài)限制。故選A?
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7. The design liaison meeting ____ ten days by the time it ends.?
A. must have lasted ? ? B. will have lasted ? ?C. would last ? ?D. has lasted?
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【句意】本期設(shè)計聯(lián)絡(luò)會將持續(xù)十天才會結(jié)束。??
【難點】by the time意指no later than the moment that something happens，常與過去完成時和將來完成時連用。
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8. ____ before we depart the day after tomorrow, we should have a wonderful dinner party.
A. Had they arrived ? ? ? B. Would they arrive ? ? ? C. Were they arriving ? ? D. Were they to arrive
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8. D)?
【句意】如果他們能在我們后天離開之前趕到的話，我們就舉行一次盛大的宴會。?
【難點】表示將來不可能發(fā)生的事實，常用虛擬語氣，主句的謂語為should+動詞原形(適用于第一人稱主語)或would,could,might+動詞原形(適用于其余人稱主語)；而條件句的謂語應(yīng)該用should+動詞原形，were to+動詞原形或直接用動詞的過去時(如be 改用were)。
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9. As ___ clear from his manners, he is a teacher.
?A. being ? ? ?B. is ? ? ? C. to be ? ? ?D. been?

?9. B)?
【句意】從他的舉止便可以明顯地看出，他是一名教師。
【難點】as意為―如，照(某種事實或情況)‖，在本句中為關(guān)系代詞，指代第二個分句，as代替整個句子作主語時，謂語動詞通常必須用單數(shù)。
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10. Great as Newton was, many of his ideas ____ today and are being modified by the work of scientists of our time.?
A. are to challenge ? ? ? ? ?B. may be challenged ? ? ?C. have been challenged ? ? ?D. are challenging?
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?10. C)?
【句意】盡管牛頓非常偉大，然而他的許多觀點當(dāng)前正受到懷疑，并且當(dāng)今的許多科學(xué)家正在努力對這些觀點進(jìn)行修正。??
【難點】challenge意為―挑戰(zhàn)，懷疑‖，常用作及物動詞。本句中牛頓的觀點受到挑戰(zhàn)為一個當(dāng)前已經(jīng)發(fā)生的事實，故采用現(xiàn)在完成時的被動語