Whale beachings（擱淺）_______ be caused by factors such as illness, or disorientation（迷失方向）caused by extra noise in the oceans, ______ shipping or oil and gas drilling.


  1. A.
    might; from
  2. B.
    will; by
  3. C.
    should; in
  4. D.
    shall; on
A
試題分析：考察情態(tài)動(dòng)詞。本題第一空might也許；will將要；should應(yīng)該；shall將要；句意：鯨魚(yú)擱淺也許是由多種因素導(dǎo)致的，如疾病或者海洋里的噪音導(dǎo)致的迷失方向或者來(lái)自石油鉆探。句中的from表示原因。第一空的might也許，表示不確定的原因，因?yàn)楹竺嫣岢隽硕鄠�(gè)具體的解釋。故A正確。
考點(diǎn)：考察情態(tài)動(dòng)詞
點(diǎn)評(píng)：英語(yǔ)中有不少情態(tài)動(dòng)詞都可以表示推測(cè)，其語(yǔ)氣有強(qiáng)有弱，表示的可能性有大有小，現(xiàn)將它們的用法歸納如下：1. 接近100%的可能，只有must才具有這么高的可能性，它的意思是“一定”“肯定”，所作出的推測(cè)幾乎接近事實(shí)。如：He must be coming by bus. 他一定是乘公共汽車(chē)來(lái)。2. 很有可能，表示可能性較大的情態(tài)動(dòng)詞主要有may, should, ought to，它們大致相當(dāng)于漢語(yǔ)的“可能”“應(yīng)該”“按理會(huì)”。 3. 一般性的可能，在所有表示推測(cè)的情態(tài)動(dòng)詞中，might和could所表示的可能性最小，由于它們的語(yǔ)氣較委婉，較不確定，所以往往相當(dāng)于漢語(yǔ)的“可能”“也許”“說(shuō)不定”等。4. 理論上的可能性，表示理論上的可能通常是用can，且可以用于肯定句中。
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Unfortunately, the leaders invested the money unwisely and lost millions of dollars．In addition，they used millions more dollars for personal expenses．Soon people realized that they had a terrible problem—their phosphate was running out．Ninety percent of their island was destroyed and they had nothing．By 2000，Nauru was financially ruined．Experts say that it would take approximately$433，600，000 and more than 20 years to repair the island．This will probably never happen．
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A．To seek help for Nauru's problems．
B．To tell a heartbreaking story of a war．
C．To show the importance of money
D．To give a warning to other countries
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A．soil pollutionB．phosphate overmining
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B．It spent too much repairing the island
C．Its leaders misused the money
D．It lost millions of dollars in the civil war.
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