Question

【題目】When the natural climate changes due to global warming, it can surely affect seals. The majority of them live in the Antarctic region so as the ice is melting, their natural habitat（棲息地）can be seriously affected. These changes don’t take place overnight. They can be the result of many years of additional temperatures in the area. The seals then have to find ways to adapt.

Seals depend on the cool air currents to bring plenty of food for them. When the temperatures get higher, there is less and less food and the seal population starts to get depleted. Mothers aren’t healthy enough to feed their babies. Many of them end up abandoned as the mothers have to leave to find their own source of food.

The fact that their desire to produce young can be changed by the warmer temperatures is frightening too. It is also believed that the warmer temperatures can allow different diseases and viruses to attack the seals. This is a huge concern as they can rapidly wipe out huge numbers of seals out there.

However, these changes in climate and temperature aren’t all bad for other species of seals. Scientists have found that those living in warmer climates are producing more young due to the changes. Research also shows that the females are moving further to find food and water. When they are out of the reach of the governing males, they are more willing to accept the moves of other males in the group.

This is good news too because it means that there will be more selection in the gene pool（基因庫(kù)）for future generations. It can help the seals as a species adapt to changes in their natural environment more easily.

The climate change problem for seals is directly linked to humans. When we take action to change what we let out into the environment, we will make positive changes for the seals. However, it is going to take a very long time to reverse（徹底改變）the effects of what has already been done.

【1】What does the author regard climate changes for seals as?

A. An unavoidable disaster for existence.

B. A double-edged sword.

C. A mirror of evolution

D. A requirement for more choice in the gene pool.

【2】What does the underlined phrase in Paragraph 2 most probably mean?

A. Explode B. Disappear

C. Shrink D. Vary

【3】What will happen to the seals in warmer climates?

A. Their number will be on the increase

B. The female seals will be in the lead.

C. Their genes will change a great deal.

D. The females will keep away from the males.

【4】Which the following can be the best title for the text?

A. The Importance of Protecting Seals.

B. Seals’ adaptation to Climate Change.

C. How Climate Change Affects Seals.

D. Why Are Seals Becoming Less and Less.

Answer 1

【答案】

【1】B

【2】C

【3】A

【4】C

【解析】

本文是一篇說(shuō)明文。主要講述了全球變暖導(dǎo)致自然氣候的變化，進(jìn)而影響海豹的生活，但是也會(huì)使海豹更容易適應(yīng)自然環(huán)境的變化。

【1】B 細(xì)節(jié)理解題 根據(jù)第一段their natural habitat（棲息地）can be seriously affected.（全球變暖可能會(huì)嚴(yán)重的影響海豹的自然棲息地）和第五段It can help the seals as a species adapt to changes in their natural environment more easily.全球變暖可以幫助海豹成為更容易適應(yīng)自然環(huán)境變化的物種。綜上，氣候變化對(duì)海豹來(lái)說(shuō)是一種雙刃劍，故選B。

【2】C 詞義猜測(cè)題 上半句When the temperatures get higher, there is less and less food氣溫變高，食物變少，結(jié)果就是海豹的數(shù)量會(huì)get depleted，所以此處get depleted的意思是減少（shrink），故選C。

【3】A 細(xì)節(jié)理解題 根據(jù)第四段Scientists have found that those living in warmer climates are producing more young due to the changes.可知科學(xué)家們發(fā)現(xiàn)，由于氣候變化，生活在氣候暖和區(qū)域的海豹會(huì)繁殖更多的幼崽，即氣候變暖，海豹的數(shù)量會(huì)增加，故選A。

【4】C 主旨大意題 通讀全文可知本文主要講述了全球變暖導(dǎo)致自然氣候的變化，進(jìn)而影響海豹的生活，但是也會(huì)使海豹更容易適應(yīng)自然環(huán)境的變化，故選C。