課后練習：

1. Theclean-energy businessis turning intothe next big investment boom, risksare often ignored.

A.which B. where C. inwhich D.that

2.Until recently, venture capitalists were far too busy captains of the information-technology industry on "hippy-dippytree-huggers" like himself.

A.catering to; to not waste time B.cater to; to waste time

C.catering to; that waste time D.catering to; to waste time

3.Venture Business Research reckons thatinvestmentin the field by venture capitalists and private-equity firms in the past two years.

A. havequadrupled B. quadrupled C. has quadrupled

4.Clean-energy fever threethings.

A. isbeing fuelled B. is fuelled by

C. isbeing fuelled by D. be fuelled by

5. Theindustry's cheerleaders say the provision of energy will change over the coming decades.

A.radical B. radically C. rapid D.rapidly

6.Jefferies, an investment bank, askedparticipants solar power competitivewithold-fashionedgenerationtechnologies.

A. howmuch; would become B. how soon;would became

C. howsoon; would become D. howsoon; will become

7. Onevisitor happily observed about of those present were"check-writers".

A.three-fourth B.three-quarters C. third-fourths

英語幾分之幾的說法：分子為基數詞，如one two, three…；分母為序數詞，如second, third, fifth…；分子大于1時，作分母的序數詞后加s。如：“十一分之十”為ten elevenths，“五分之三”為three fifths。

8. Butclean-energy advocates growth issustainable.

A.insist B. insists C. insect D.insist on

9. Heeasily won reelection partly because he global warming as a concern andsigned into law.

A.seize on B. seize up C. size on D. seized on

答案：請在課文中尋找。