Question

 

A. stable     B. solutions    C. considerable    D. role             E. included

F. task      G. compose     H. impact         I. challenges         J. certainly

With the world's population growing from six to nine billion by 2050, researchers, businesses and governments are already dealing with the ___1.___ this increase will have on everything from food and water to infrastructure (基礎(chǔ)設(shè)施) and jobs. The demand for energy will keep growing, and is expected to double over the next 40 years.

Finding the resources to meet this demand in a ___2.___, sustainable way is the basis of our nation's energy security, and will be one of the major ___3.___of the 21st century. Alternative forms of energy- bio-fuels, wind and solar are ___4.____ being funded and developed, and will play a growing___5.___ in the world's energy supply. But experts say that even when combined, alternative energy sources will likely meet only about 30% of the world's energy needs by 2050.

For example, even with ___6.___ investments, such as the $93 million for wind energy development ___7.___ in the American Recovery and Reinvestment Act, important alternative energy sources such as wind and bio-fuels __8.___ only about 1% of the market today.

Energy and sustainability experts say the answer to our future energy needs will likely come from a lot of ___9.___ both traditional and alternative.

 

Answer 1

【答案】

1.H

2.A

3.I

4.J

5.D

6.C

7.E

8.G

9.B

【解析】

試題分析：本文敘述了隨著世界上人口的增長，為了滿足人們的生活的需要開發(fā)利用其他的能源例如生物燃料、風能和太陽能這已經(jīng)成為21世紀的最大的挑戰(zhàn)。在未來要調(diào)整這三種能源所占的能源比例。

1.根據(jù)this increase will have on everything from food and water to infrastructure (基礎(chǔ)設(shè)施) and jobs.研究人員企業(yè)和政府都在處理這種人口的增長將給一切從糧食到基礎(chǔ)設(shè)施及工作帶來的影響，空格后是定語從句，有on連用的是impact，故選H。

2.根據(jù)與sustainable way相對應的詞stable“穩(wěn)定的”，故選A。

3.本空前面為形容詞major, 于是這里需要填入名詞，之前還有one of，于是必須填入復數(shù)名詞，在I與B中選。本句主語是“找尋”某資源，所以這被概括為一種挑戰(zhàn)更為恰當，故選I。

4.本空所在句不缺任何成分，并且其還出現(xiàn)在被動語態(tài)be動詞和實義動詞之間，所以必然填入副詞，故選J。

5.空前a growing表明此處填名詞，再往前看有個動詞play，因此填入role構(gòu)成習語play a role in，故選D。

6.空后Investments為名詞，此處填入形容詞，剩下形容詞中只有significant可表示可觀的、大量的，形容投資非常多。故選C。

7.本空出現(xiàn)在名詞development之后，整句在such as所引導的例子里，本應為一整個名詞性結(jié)構(gòu)，而其后又有專有名詞ARRA，于是此處應填入非謂語動詞作development的后置定語，剩下詞中只有included這一個。故選E。

8.空后有明顯語言標志1%，因此這里應該選擇表示組成、構(gòu)成、占有的comprise由組成, 故選G。

9.此處在a lot of之后，因此填入復數(shù)名詞，整句意為“能源與可持續(xù)專家認為，日后能源需求的解決可能將來自于許多傳統(tǒng)和替代的_______�！边�剩下“解決方式”和“工作”兩個選項； solutions更符合語義。故選B。

考點：選詞填空。

點評：選詞填空題型是一種綜合性很強的閱讀類試題，集閱讀理解與完形填空于一身，主要考查學生對詞匯、句型、語法知識的綜合運用能力、閱讀能力以及邏輯推理、綜合判斷和分析歸納的能力。要求學生根據(jù)文章含義從所給的10 個詞匯中選出9 個恰當?shù)脑~，每詞只能用一次，并用其正確形式進行填空，使短文語法正確、意思通順、前后連貫、結(jié)構(gòu)完整。該題設(shè)置靈活，難度較大，考生極易失分。