2019年GRE考試練習及答案4

GRE留學考試考試網 鯉魚小編 更新時間:2019-07-16

還有不到一個月的時間,GRE考試就要開始了,大家復習的怎么樣呢,鯉魚小編整理了一些題目給大家,快來檢測一下吧。

GRE閱讀題目解析:云對地球暖化效應的作用

As of late 1980s, neither theorists nor large-scale computer climate models could accurately predict whether cloud systems would help or hurt a warming globe. Some studies suggested that a four percent increase in stratocumulus clouds over the ocean could compensate for a doubling in atmospheric carbon dioxide, preventing a potentially disastrous planet-wide temperature increase. On the other hand, an increase in cirrus clouds could increase global warming.

That clouds represented the weakest element in climate models was illustrated by a study of fourteen such models. Comparing climate forecasts for a world with double the current amount of carbon dioxide, researchers found that the models agreed quite well if clouds were not included. But when clouds were incorporated, a wide range of forecasts was produced. With such discrepancies plaguing the models, scientists could not easily predict how quickly the worlds climate would change, nor could they tell which regions would face dustier droughts or deadlier monsoons.

1. The author of the passage is primarily concerned with

A. confirming a theory

B. supporting a statement

C. presenting new information

D. predicting future discoveries

E. comparing points of view

2. It can be inferred that one reason the fourteen models described in the passage failed to agree was that

A. they failed to incorporate the most up-to-date information about the effect of clouds on climate

B. they were based on faulty information about factors other than clouds that affect climate

C. they were based on different assumptions about the overall effects of clouds on climate

D. their originators disagreed about the kinds of forecasts the models should provide

E. their originators disagreed about the factors other than clouds that should be included in the models

3. The information in the passage suggests that scientists would have to answer which of the following questions in order to predict the effect of clouds on the warming of the globe?

A. What kinds of cloud systems will form over the Earth?

B. How can cloud systems be encouraged to form over the ocean?

C. What are the causes of the projected planetwide temperature increase?

D. What proportion of cloud systems are currently composed of cirrus clouds?

E. What proportion of the clouds in the atmosphere form over land masses?

解析:

1.As of late 1980s, neither theorists nor large-scale computer climate models could accurately predict whether cloud systems would help or hurt a warming globe.

1980 年代末,無論氣象理論學家還是大規模計算機氣象模型都無法精確預測,云對地球暖化效應發揮積極或消極作用。

2.Some studies suggested that a four percent increase in stratocumulus clouds over the ocean could compensate for a doubling in atmospheric carbon dioxide, preventing a potentially disastrous planet-wide temperature increase.

有些研究認為,海上的層積云增加 4%,可以抵消大氣中二氧化碳翻倍的影響,進而阻止全球氣溫上升帶來的潛在危害。

3.On the other hand, an increase in cirrus clouds could increase global warming.

另一方面,卷云變多則可能加劇暖化。

4.That clouds represented the weakest element in climate models was illustrated by a study of fourteen such models.

十四種模型算法顯示,云是氣象模型中呈現得最不成功的因素。

5.Comparing climate forecasts for a world with double the current amount of carbon dioxide, researchers found that the models agreed quite well if clouds were not included.

假如把現在的大氣二氧化碳水平加倍,比較預報結果,研究者們發現,如果不考慮云的因素,各種模型預報結果相當接近。

6.But when clouds were incorporated, a wide range of forecasts was produced.

但如果考慮云,預報結果就變得大相徑庭。

7.With such discrepancies plaguing the models, scientists could not easily predict how quickly the worlds climate would change, nor could they tell which regions would face dustier droughts or deadlier monsoons.

這種差異困擾著模擬結果,科學家們無法輕易預測世界氣候變化的速度,也不知道那些地區面臨更嚴重的干旱或更致命的雨季。

1. The author of the passage is primarily concerned with

A. confirming a theory

B. supporting a statement

C. presenting new information

D. predicting future discoveries

E. comparing points of view

B

statement 即句 1 內容,科學家和大型計算機都搞不定云在氣候中發揮的作用。

2. It can be inferred that one reason the fourteen models described in the passage failed to agree was that

A. they failed to incorporate the most up-to-date information about the effect of clouds on climate

B. they were based on faulty information about factors other than clouds that affect climate

C. they were based on different assumptions about the overall effects of clouds on climate

D. their originators disagreed about the kinds of forecasts the models should provide

E. their originators disagreed about the factors other than clouds that should be included in the models

C

綜合句 5 - 6

Comparing climate forecasts for a world with double the current amount of carbon dioxide, researchers found that the models agreed quite well if clouds were not included. But when clouds were incorporated, a wide range of forecasts was produced.

不考慮云的因素,預測結果差不多 agreed quite well,加入云的因素,預測結果變得 wide range 。所以我們可以 infer,問題出在云。

3. The information in the passage suggests that scientists would have to answer which of the following questions in order to predict the effect of clouds on the warming of the globe?

A. What kinds of cloud systems will form over the Earth?

B. How can cloud systems be encouraged to form over the ocean?

C. What are the causes of the projected planetwide temperature increase?

D. What proportion of cloud systems are currently composed of cirrus clouds?

E. What proportion of the clouds in the atmosphere form over land masses?

A

題干中出現了 in / of / from / about the passage,答案都在文章里找。

文中出現了兩種云。

stratocumulus clouds(2),抵消二氧化碳,阻止變暖;

cirrus clouds(3)加劇變暖。

想知道云對氣候的影響,要先搞清楚會產生哪種云(或比例多少),才能進一步估計它們發揮的作用。

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