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．a(chǎn)dvertised      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．a(chǎn)ssess          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．a(chǎn)ccept         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．a(chǎn)ction

 

20.               A．secure         B．a(chǎn)dvance        C．sacrifice   D．evaluate

 

 

【答案】

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】

試題分析：本文的主要內(nèi)容是，氣候變暖不會(huì)使亞馬遜古代樹種滅絕。

1.C。publish為發(fā)表之意，其他意思不符合。

2.B。一些樹種并未隨氣溫的升高而滅絕，因此超高的樹齡令人驚訝。

3.D。該空所表明的事實(shí)是以前面的樹齡為依據(jù)的，所以是“因此”的意思。

4.C。2100是將來的時(shí)間，預(yù)測符合意思。

5.B。亞馬遜的樹曾經(jīng)在高溫氣候中生存下來，所以將來也很有可能升高的氣候。

6.B。Although引導(dǎo)讓步狀語。

7.A。氣溫的升高。

8.D。recommend此處是建議的意思，后面的should表明這一層意思。

9.C。防止采伐森林是保護(hù)政策的中心。

10.B。先前的觀點(diǎn)認(rèn)為樹種滅絕是對相對小幅氣溫升高的反應(yīng)。

11.A。最新研究的發(fā)現(xiàn)。

12.A。過度采伐威脅亞馬遜的未來。

13.B。耐高溫之意。

14.D。農(nóng)業(yè)和礦業(yè)，A、B與agriculture同一范疇，C毫不相干；最后一段有提示。

15.B。沒有人類影響，物種移動(dòng)更為自由。

16.A。今天的氣溫升高速度遠(yuǎn)遠(yuǎn)快于以前，因此難以與過去相對比。

17.C。更為清楚的了解亞馬遜森林面臨的風(fēng)險(xiǎn)。

18.B。得出的結(jié)論。

19.D。積極的行動(dòng)和措施。

20.A. 保護(hù)，使…安全。

考點(diǎn)：教育類短文完形填空

點(diǎn)評(píng)：答題前一定要略讀全文，把握文章要表達(dá)的主題，注意前后句與句，段落與段落之間的關(guān)系。答題中，一定要認(rèn)真分析，注意選項(xiàng)與上下文的關(guān)系，與前后單詞的關(guān)系。對于一時(shí)沒有太大的把握的題可以放到最后再來完成，因?yàn)橛袝r(shí)答案可以從下文內(nèi)容體現(xiàn)出來。答完后再通讀一遍文章，看看所選選項(xiàng)能不能是語句通順，語意連貫。

 

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【小題1】
A．a(chǎn)dvertisedB．describedC．publishedD．presented
【小題2】
A．frighteningB．surprisingC．excitingD．interesting
【小題3】
A．stillB．neverthelessC．howeverD．therefore
【小題4】
A．a(chǎn)ssessB．confirmC．forecastD．promise
【小題5】
A．particularlyB．probablyC．merelyD．possibly
【小題6】
A．SinceB．AlthoughC．When D．If
【小題7】
A．riseB．change C．dropD．end
【小題8】
A．considerB．decideC．guaranteeD．recommend
【小題9】
A．basedB．builtC．focusedD．made
【小題10】
A．in relation toB．in response toC．in reply toD．in reference to
【小題11】
A．findingsB．thoughtsC．inventionsD．writings
【小題12】
A．threatsB．disadvantagesC．embarrassmentsD．instructions
【小題13】
A．a(chǎn)cceptB．tolerateC．permitD．Require
【小題14】
A．farmingB．plantingC．cateringD．mining
【小題15】
A．powerB．influenceC．desireD．violence
【小題16】
A．difficultB．clear C．easyD．important
【小題17】
A．beliefB．directionC．understandingD．suggestion
【小題18】
A．doubtB．concludeC．calculateD．prefer
【小題19】
A．thoughtB．guidanceC．protectionD．a(chǎn)ction
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  1. 1.
    1. A.
      advertised
    2. B.
      described
    3. C.
      published
    4. D.
      presented
  2. 2.
    1. A.
      frightening
    2. B.
      surprising
    3. C.
      exciting
    4. D.
      interesting
  3. 3.
    1. A.
      still
    2. B.
      nevertheless
    3. C.
      however
    4. D.
      therefore
  4. 4.
    1. A.
      assess
    2. B.
      confirm
    3. C.
      forecast
    4. D.
      promise
  5. 5.
    1. A.
      particularly
    2. B.
      probably
    3. C.
      merely
    4. D.
      possibly
  6. 6.
    1. A.
      Since
    2. B.
      Although
    3. C.
      When
    4. D.
      If
  7. 7.
    1. A.
      rise
    2. B.
      change
    3. C.
      drop
    4. D.
      end
  8. 8.
    1. A.
      consider
    2. B.
      decide
    3. C.
      guarantee
    4. D.
      recommend
  9. 9.
    1. A.
      based
    2. B.
      built
    3. C.
      focused
    4. D.
      made
  10. 10.
    1. A.
      in relation to
    2. B.
      in response to
    3. C.
      in reply to
    4. D.
      in reference to
  11. 11.
    1. A.
      findings
    2. B.
      thoughts
    3. C.
      inventions
    4. D.
      writings
  12. 12.
    1. A.
      threats
    2. B.
      disadvantages
    3. C.
      embarrassments
    4. D.
      instructions
  13. 13.
    1. A.
      accept
    2. B.
      tolerate
    3. C.
      permit
    4. D.
      Require
  14. 14.
    1. A.
      farming
    2. B.
      planting
    3. C.
      catering
    4. D.
      mining
  15. 15.
    1. A.
      power
    2. B.
      influence
    3. C.
      desire
    4. D.
      violence
  16. 16.
    1. A.
      difficult
    2. B.
      clear
    3. C.
      easy
    4. D.
      important
  17. 17.
    1. A.
      belief
    2. B.
      direction
    3. C.
      understanding
    4. D.
      suggestion
  18. 18.
    1. A.
      doubt
    2. B.
      conclude
    3. C.
      calculate
    4. D.
      prefer
  19. 19.
    1. A.
      thought
    2. B.
      guidance
    3. C.
      protection
    4. D.
      action
  20. 20.
    1. A.
      secure
    2. B.
      advance
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