練習:
1. Which of the following is closest in meaning to the word “build” in the first sentence of the second paragraph?
A) Construct. B) Extend. C) Create. D) Expand.
2. What is the ice cover in the Arctic by the end of 2007 summer?
A) 4.2 million square kilometers. B) 11.4 million square kilometers. C) 1.13 million square kilometers. D) 38 million square kilometers.
3. What are the reasons for the ice melt according to the scientists?
A) Strong winds and clear skies. B) Long summer and short winter.
C) Open water and thin ice. D) Light clouds and light winds.
4. Why is the ice melting from both above and below?
A) Because extra heat warms the air.
B) Because extra heat warms the water.
C) Because the temperature above the water is higher. D) Both A and B.
5. What can be a possible title for the passage?
A) What are scientists looking for in the Arctic Ocean? B) What are scientists doing in the Arctic Ocean?
C) Why are scientists worrying about the Arctic Ocean? D) Why are scientists interested in the Arctic Ocean?
答案與題解:
1.D build 是個多義詞,四個選項都是該詞的潛在詞義。但在第二段的第一句中,build 與后半句中 shrink(become smaller)一詞相對,意思是 become bigger 之義。Extend 是增 長的意思,不適合用在此處。
2.A 答案可在第四段的第二句中找到。該句的意思是:2007 年夏末,冰的覆蓋面積已經 縮小至 420 萬平方公里。
3.A 短文的第五和第六段回答了這個問題。第五段告訴我們,由于強風的原因,大面積海 面僅有薄冰覆蓋或沒有冰層覆蓋。第六段告訴我們,晴朗的天空使太陽直接照射海面,導致 高溫。所以 A 是正確選擇。B 的內容沒有在文中提到。C 的表述內容是間接原因,是刮強風 的結果。D 選項中,light clouds 的確是 ice melt 的原因,但 fight winds 是錯誤的理解。
4.D 答案可在倒數第三段第一句話中找到。from both above and below 的意思是:無論 從海水上面還是底下,也就是說,無論是海水還是海面上的空氣。所以 A 和 B 都回答了問題 : 高溫不但可能使水溫增高,也使氣溫增高。
5.C 本文描述了科學家對北冰洋冰覆蓋量的研究,研究結果是 Arctic is stuck in a warming trend from which it may never recover.(北冰洋變暖的趨勢可能不會逆轉)。第四段最后一句說:This continuing trend has scientists concerned,短文最后一句也 告訴我們,科學家對這種趨勢十分憂慮(fear)。所以,C 是本題的答案。