Question

【題目】 As far back as the age of dinosaurs millions of years ago, turtles(海龜) wandered around the Earth. Even nowadays, it is generally assumed that turtles are the world's steadiest creature.

However, a new research shows 61 percent of the 356 species of turtles are already threatened or no longer exist. The destruction of their homes, disease, climate change and other reasons have caused their population to drop sharply. In a new study published in the journal BioScience, a team of scientists from various institutions claims that turtles are one of the most threatened among the major vertebrate(脊椎動(dòng)物) groups.

This could, the authors say, have serious consequences for the ecology. Turtles contribute to the health of many environments, including desert, wetland, freshwater and marine ecosystems, and the decline may lead to bad effects on other species, including humans, they explain. Whit Gibbons, seruor author and professor at the Utuversity of Georgia's Savannah River Ecology Laboratory, says in a statement that the intention of the study is to inform people about the vital ecological roles of turtles.

One of the important qualities of turtles is how diverse they are when it comes to food. This allows them to have a major impact on food webs of their homes all over the world. In some areas, the density(密度) of the turtle population makes them an important part of the ecosystem. With their gathering, other species that feed on them and their eggs are sure to have a large pool of food.

For plants, turtles are also extremely important as they distribute the seeds of many plant species. When they eat some seeds are not destroyed by the digestive process and instead make their way out of the animals' body. Some turtles are the main dispersal(傳播 ) agents of certain plants and their seeds.

These are only a few yet very vital roles that turtles play in the ecological landscape. Unfortunately, many species are in serious decline and in danger of disappearing completely.

【1】What does the new study aim to do?

A. To save the grand vertebrate groups on earth. .

B. To wam people of turtles' terrible situation.

C. To make the importance of turtles' roles known.

D. To claim turtles may be related to dinosaurs.

【2】How might the disappearance of turtles influence certain plants?

A. Speed up these plants' disappearing.

B. Put an end to these plants' seeds spreading.

C. Allow more. seeds to grow into plants.

D. Give these plants no chance of survival. .

【3】Which of the following shows the structure of the text?

I:Introduction P:Point Sp: Sub-point(次要點(diǎn) ) C:Conclusion

A. B.

C. D.

【4】What can be a suitable title for the text?

A. Turtles Are Sure to Stop Existing.

B. The Ecology Will Change with Turtles.

C. Decline of Turtles Threatens the World.

D. Turtles' Dying Out Worldwide Matters a Lot.

Answer 1

【答案】

【1】C

【2】A

【3】B

【4】D

【解析】

本文是一篇說(shuō)明文，介紹了目前海龜數(shù)量大范圍減少的狀況以及海龜?shù)拇嬖趯?duì)生態(tài)系統(tǒng)的重要作用。

【1】細(xì)節(jié)理解題.根據(jù)第三段的” the intention of the study is to inform people about the vital ecological roles of turtles“可知,這個(gè)研究的目的是讓人們了解海龜對(duì)生態(tài)的重要作用，故C項(xiàng)正確。

【2】推理判斷題。根據(jù)第五段內(nèi)容可知，海龜通過(guò)吃下植物的種子然后將其排出體外來(lái)進(jìn)行植物種子的傳播，一些海龜是某些植物及其種子的主要傳播媒介，由此可推知，海龜?shù)南�失也可能加速這些植物的滅絕，故A項(xiàng)正確。

【3】推理判斷題。通讀全文并分析文章結(jié)構(gòu)可知，第一段是全文的引言( Introduction),引入海龜這一話(huà)題;第二段是要點(diǎn)一( Point1),介紹了海龜數(shù)量驟減的情況;第三段是要點(diǎn)二( Point2),總述海龜對(duì)生態(tài)系統(tǒng)的作用;第四、五段都是要點(diǎn)二的次要點(diǎn)(Sp1和Sp2),分別介紹了海龜在生態(tài)系統(tǒng)中所起的兩個(gè)作用;最后一段對(duì)全文進(jìn)行總結(jié)( Conclusion)，故B項(xiàng)正確。

【4】主旨大意題。通讀全文可知，本文介紹了目前海龜數(shù)量大范圍減少的狀況以及海龜?shù)拇嬖趯?duì)生態(tài)系統(tǒng)的重要作用，故D項(xiàng)（世界范圍內(nèi)海龜?shù)南�失影響重大）最能概括本文大意，�?/span>D項(xiàng)正確。

本篇第2題B項(xiàng)的干擾性較大，但根據(jù)第五段第一句" Some turtles are the main dispersal(傳播) agents of certain plants and their seeds可知,一些海龜是某些植物及其種子的主要傳播媒介,但這只是指物及其種子的傳播媒介之一，因此并不能說(shuō)明海龜?shù)南�失就意味著這些植物的種子徹底不能得到傳播了，故排除B頂。