9.Do you want to know what lives in the Earth's waters?Some 300scientists from  fifty-three different countries are (72)wondering the same thing.For the first time in history,scientists are trying to count how (73)many species (物種) of fish,animals and plants live under water.Everyone knows that oceans cover seventy per cent of the Earth's (74)surface.The study began in 2000and is expected to (75)end in 2013,at a cost of US$1billion.So far,scientists have got the number of more than 15,000species of fish and around 200,000species of animals and plants in the oceans.They expect to find at (76)least another 5,000species of fish in the near future.
Scientists believe (77)that the animals and plants they've found so far represent just 10% of the world's total underwater (78)population.That means that they may find almost 2million species of animals and plants by 2013."Our goal is to know as much about(79)life in the oceans by 2013as we know about life on land now,"says a woman scientist who is working on the project.
The newly-discovered animals or plants are not (80)all new.Many of them have already been discovered before and just never been recorded.Scientists are (81)worried that the variety (多樣化) of species living in the ocean is becoming less because of humans.They hope their studies and reports will help people learn how human activity,such as fishing and agriculture,is affecting the oceans.

分析 你想知道地球水域里有什么嗎?來自五十三個不同國家的大約300名科學(xué)家對同樣的事情感到疑惑.有史以來第一次,科學(xué)家們正試圖計算生活在水下的魚、動物和植物有多少種.每個人都知道海洋覆蓋了地球表面的百分之七十.這項研究開始于2000,預(yù)計到2013年結(jié)束,耗資10億美元.到目前為止,在海洋中科學(xué)家們已經(jīng)獲得了超過15000種魚類和約有200000種動植物.他們希望在不久的將來至少能找到另外5000種魚類.
科學(xué)家認為到目前為止,他們所發(fā)現(xiàn)的動植物僅占水下世界生命總數(shù)的10%.這意味著他們到2013年為止可能還會發(fā)現(xiàn)動植物近200萬種."我們的目標(biāo)是到2013年為止,像現(xiàn)在我們知道的陸地上的生命一樣盡可能多地了解海洋中的生命."一位正在從事這個項目的女科學(xué)家說.
新發(fā)現(xiàn)的動物或植物并不都是新的物種.他們中的許多之前已經(jīng)被發(fā)現(xiàn)過,只是從來沒有被記錄過.科學(xué)家們擔(dān)心,由于人類的原因,生活在海洋中的物種越來越少了.他們希望他們的研究和報告將幫助人們了解人類活動,如捕魚和農(nóng)業(yè),正在影響海洋.

解答 72.wondering. 考查動詞的用法及語境理解.根據(jù)上文Do you want to know what lives in the Earth's waters,可知你想知道地球水域里有什么嗎,而這里是說來自五十三個不同國家的大約300名科學(xué)家對同樣的事情感到疑惑,他們也想知道,所以這里用wonder,想知道,這里前面有are,時態(tài)應(yīng)該是現(xiàn)在進行時,故填wondering.
73.many. 考查形容詞的用法及語境理解.根據(jù)scientists are trying to count,這里count是數(shù)數(shù)的意思,所以下面表示的應(yīng)該是數(shù)量,而提問數(shù)量應(yīng)該用how many表示多少,故填many.
74.surface.考查名詞的用法及語境理解.根據(jù)題干Everyone knows that oceans cover seventy per cent of the Earth's,眾所周知,海洋面積占了地球表面的百分之七十,根據(jù)首字母s,可知這里填寫surface,表面.故填surface.
75.end.考查動詞的用法及語境理解.根據(jù)The study began in 2000,可知這項研究開始于2000年,所以后面說的是到2013年結(jié)束,根據(jù)首字母e及語境,可知句子應(yīng)該填end,動詞,結(jié)束.故填end.
76.least.考查形容詞的用法及語境理解.根據(jù)They expect to find at--another 5,000 species of fish in the near future,可知他們希望在不久的將來至少能找到另外5000種魚類.這里考查短語at least至少,故填least.
77.that.考查連詞的用法及語境理解.根據(jù)Scientists believe--the animals and plants they've found so far represent just 10% of the world's total underwater--.可知科學(xué)家認為到目前為止,他們所發(fā)現(xiàn)的動植物僅占水下世界生命總數(shù)的10%.這里believe后面跟的是一個賓語從句,這里句子不缺少任何成分,所以這里用that引導(dǎo).故填that.
78.population.考查名詞的用法及語境理解.根據(jù)Scientists believe--the animals and plants they've found so far represent just 10% of the world's total underwater--.可知科學(xué)家認為到目前為止,他們所發(fā)現(xiàn)的動植物僅占水下世界生命總數(shù)的10%,這里動植物都是有生命,根據(jù)首字母p,可知這里用population,表示生物種群.故填population.
79.life.考查名詞的用法及語境理解.根據(jù)下文as we know about life on land now,可知像現(xiàn)在我們知道的陸地上的生命一樣,前面說的是海洋中的生命,根據(jù)首字母l及語境,可知這里填life.故填life.
80.a(chǎn)ll.考查形容詞的用法及語境理解.根據(jù)下文Many of them have already been discovered before and just never been recorded.可知他們中的許多之前已經(jīng)被發(fā)現(xiàn)過,只是從來沒有被記錄過,從這里可以推知新發(fā)現(xiàn)的動物或植物并不都是新的物種,根據(jù)首字母a及語境,可知這里用all,表示所有的,全部的,故填all.
81.worried.考查形容詞的用法及語境理解.根據(jù)題干the variety (多樣化) of species living in the ocean is becoming less because of humans.可知由于人類的原因,生活在海洋中的物種越來越少了,所以科學(xué)家們很擔(dān)心,根據(jù)首字母w及語境,可知這里用形容詞worried,擔(dān)心的,be worried about為…擔(dān)心.故填worried.

點評 此篇為英語閱讀填空.做題時先讀一遍題,不要看選項,盡量弄懂在講什么; 第二遍的時候,開始試著填,確定好詞性及詞意,注意利用固定搭配等輔助做題,其中聯(lián)系上下文是做好此類題的關(guān)鍵所在.第三遍根據(jù)所填的詞匯復(fù)讀文章,看前后是否連貫通順,是否符合邏輯,查漏補缺,完成校正.

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