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【題目】 ①It's hard to turn down a tasty banana. They taste good and you don't have to wash them before eating them. However, British scientists say that the fruit may disappear by 2050.

②One reason for this is climate(氣候)change. Scientists at the University of Exeter collected data (數據)from 27 countries and regions that produce 86 percent of the world's bananas. They found that climate change has improved growing conditions in 21 of these countries. In the past 60 years, the average yield (平均產量)has reached 1. 37 tons of bananas per hectare (公頃).

③However, if temperatures keep rising, this advantage will disappear. Ten of the countries, including India, the world5s biggest producer of bananas, will produce fewer bananas. By 2050, the fruit may die out.

Shouldn't bananas grow more easily if it*s hotter outside? In fact, the perfect temperature range for growing bananas is between 24 and 32 "C. If temperatures get too high, they will stop growing.

Diseases are another danger to bananas. Unlike other crops, the bananas we grow come from shoot cuttings (莖段)rather than seeds (系中子). This means that all banana plants have the same genotype. In other words, if a disease is able to kill one plant, it could kill them all.

⑥One serious disease is called Panama. Caused by fungus (真菌)in the soil, it spreads easily. It has spread across South Asia, Africa, the Middle East, and Australia. If one banana plantation suffers from the disease, it will take 30 years until it is able to grow bananas again. Scientists have yet to find a cure for this disease.

1What does the underlined word "this" in Paragraph② refer to?

A.A banana is a much-loved fruit.

B.A banana tastes great.

C.A banana is convenient to be eaten.

D.A banana will die out in 30 years.

2According to the passage, we can infer that ?

A.In the last few years, the average yield of bananas has increased.

B.Panama has killed all the bananas in some areas like South Asia.

C.The higher the temperature is, the better bananas will grow.

D.Bananas grow from shoot cuttings instead of seeds.

3What does the passage mainly talk about?

A.The difficulties of growing bananas.

B.The perfect conditions of growing bananas.

C.The reasons for the disappearance of bananas.

D.The advice for growing bananas.

4How is the passage organized?

A.B.C.D.

【答案】

1D

2A

3C

4B

【解析】

文章大意:英國科學家稱香蕉這種水果可能在2050年消失。原因之一是氣候的變化。然而,如果溫度繼續(xù)上升,這種優(yōu)勢將會消失。其中10個國家,包括世界上最大的香蕉生產國印度,將減少香蕉的產量。到2050年,這種水果可能會滅絕。事實上,種植香蕉的最佳溫度范圍是在2432攝氏度之間。如果溫度太高,香蕉就會停止生長。疾病是香蕉的另一個危險。一個嚴重的疾病叫做巴拿馬?茖W家尚未找到治療這種疾病的方法。

1

詞義猜測題。根據文中“However, British scientists say that the fruit may disappear by 2050.

One reason for this is climate(氣候)change.” 然而,英國科學家稱這種水果可能在2050年消失。這是氣候的原因之一(氣候)的變化?芍,下劃線的單詞“this”②段指香蕉將在30年內滅絕。故答案為D。

2

理解推斷題。根據文章內容可知,在過去的60年里,平均收益率(平均產量)已達到137噸香蕉每公頃(公頃)。我們可以推斷,在過去的幾年里,香蕉的平均產量增加了。故答案為A。

3

主旨大意題。根據文章內容可知,英國科學家稱香蕉這種水果可能在2050年消失。原因之一是氣候的變化,疾病是香蕉的另一個危險。一個嚴重的疾病叫做巴拿馬?茖W家尚未找到治療這種疾病的方法。這篇文章主要講了香蕉消失的原因,故答案為C。

4

篇章結構題。根據文章內容可知,第一段,英國科學家稱香蕉這種水果可能在2050年消失。主要有兩個原因,原因之一是氣候的變化,2,3,4段介紹的;另一個原因是疾病,疾病是香蕉的另一個危險,是后兩段,故選項B是正確的,故答案為B。

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