Question

New genetic analysis has revealed that many Amazon tree species are likely to survive human-made climate warming in the coming century, contrary to previous findings that temperature increases would cause them to die out. A study,   1  in the latest edition of Ecology and Evolution, reveals the   2  age of some Amazonian tree species -- more than 8 million years -- and   3  shows that they have survived previous periods as warm as many of the global warming imagined periods   4  for the year 2100.

The authors write that, having survived warm periods in the past, the trees will   5  survive future warming, provided there are no other major environmental changes.   6  extreme droughts and forest fires will impact Amazonia as temperatures   7 , the trees will stand the direct impact of higher temperatures. The authors   8  that as well as reducing greenhouse gas emissions to minimize the risk of drought and fire, conservation policy should remain   9  on preventing deforestation（采伐森林）for agriculture and mining.

The study disagrees with other recent researches which predicted tree species’ extinctions   10  relatively small increases in global average air temperatures.

Study co-author Dr Simon Lewis (UCL Geography) said the   11  were good news for Amazon tree species, but warned that drought and over-exploitation of the forest remained major   12  to the Amazon’s future.

Dr Lewis said: “The past cannot be compared directly with the future. while tree species seem likely to   13  higher air temperatures than today, the Amazon forest is being transformed for agriculture and   14 , and what remains is being degraded by logging, and increasingly split up by fields and roads.

“Species will not move as freely in today’s Amazon as they did in previous warm periods, when there was no human   15 . Similarly, today’s climate change is extremely fast, making comparisons with slower changes in the past   16 .”

“With a clearer   17  of the relative risks to the Amazon forest, we   18  that direct human impacts -- such as forest clearances for agriculture or mining -- should remain a key point of conservation policy. We also need more aggressive   19  to reduce greenhouse gas emissions in order to make minimum the risk of drought and fire impacts and   20  the future of most Amazon tree species.”

1.                A．advertised      B．described       C．published D．presented

2.                A．frightening      B．surprising       C．exciting   D．interesting

3.                A．still            B．nevertheless     C．however  D．therefore

4.                A．assess          B．confirm         C．forecast  D．promise

5.                A．particularly      B．probably        C．merely   D．possibly

6.                A．Since          B．Although        C．When    D．If

7.                A．rise            B．change         C．drop D．end

8.                A．consider        B．decide         C．guarantee D．recommend

9.                A．based          B．built           C．focused  D．made

10.               A．in relation to    B．in response to   C．in reply to D．in reference to

11.               A．findings        B．thoughts        C．inventions D．writings

12.               A．threats         B．disadvantages    C．embarrassments D．instructions

13.               A．accept         B．tolerate        C．permit    D．Require

14.               A．farming        B．planting        C．catering   D．mining

15.               A．power         B．influence       C．desire D．violence

16.               A．difficult        B．clear           C．easy  D．important

17.               A．belief          B．direction       C．understanding  D．suggestion

18.               A．doubt          B．conclude       C．calculate  D．prefer

19.               A．thought        B．guidance       C．protection D．action

20.               A．secure         B．advance        C．sacrifice   D．evaluate

Answer

1.C

2.B

3.D

4.C

5.B

6.B

7.A

8.D

9.C

10.B

11.A

12.A

13.B

14.D

15.B

16.A

17.C

18.B

19.D

20.A

【解析】

试题分析：本文的主要内容是，气候变暖不会使亚马逊古代树种灭绝。

1.C。publish为发表之意，其他意思不符合。

2.B。一些树种并未随气温的升高而灭绝，因此超高的树龄令人惊讶。

3.D。该空所表明的事实是以前面的树龄为依据的，所以是“因此”的意思。

4.C。2100是将来的时间，预测符合意思。

5.B。亚马逊的树曾经在高温气候中生存下来，所以将来也很有可能升高的气候。

6.B。Although引导让步状语。

7.A。气温的升高。

8.D。recommend此处是建议的意思，后面的should表明这一层意思。

9.C。防止采伐森林是保护政策的中心。

10.B。先前的观点认为树种灭绝是对相对小幅气温升高的反应。

11.A。最新研究的发现。

12.A。过度采伐威胁亚马逊的未来。

13.B。耐高温之意。

14.D。农业和矿业，A、B与agriculture同一范畴，C毫不相干；最后一段有提示。

15.B。没有人类影响，物种移动更为自由。

16.A。今天的气温升高速度远远快于以前，因此难以与过去相对比。

17.C。更为清楚的了解亚马逊森林面临的风险。

18.B。得出的结论。

19.D。积极的行动和措施。

20.A. 保护，使…安全。

考点：教育类短文完形填空