Plant diversity in Yunnan云南植物的多樣性

周艷霞

生物多樣性在維持氣候、保護水源和土壤及維護正常的生態(tài)過程中做出了巨大的貢獻。云南省內(nèi)的生物多樣性的現(xiàn)狀和未來又是什么樣的呢？

主題語境：環(huán)境保護 篇幅：305詞 建議用時：6分鐘

Yunnan， located in the southwest border of China， has a complex natural environmentand rich biological resources. It is known as the“Kingdom of Animals and Plants”. It isone of the 17 biodiversity hot spots in China and one of the 34 biodiversity hot spots in theworld. Although its land area only accounts for 4.1% of China， Yunnan nearly harbors halfof the total number of higher plant species of China （about 19，000 species）， which has al?ways drawn the attention of researchers all over the world.

The research groups for Plant Diversity and Evolution from the Kunming Institute ofBotany have been continuously focusing on the plant diversity of Yunnan. Based on theavailable data from the latest released publications and online resources， the researchersanalyzed the current situation of the plant diversity in Yunnan Province.

They found that the northwest， south and southeast of Yunnan are the areas with thelargest number of species， endemic （地方性的） species and new species published in re?cent seven years. The southeast of Yunnan is a hot spot of plant species with an extremelysmall population.

In addition， combined with the data of the nature reserves， the result showed that al?though there are currently 160 protected areas in Yunnan， only 109 of the 129 county?leveladministrative units have protected areas.

Moreover， the protected areas in central and eastern Yunnan are low?grade， with smallareas and relatively fragmented （分散的） distribution， which may be related to the frequenthuman activities in central and eastern Yunnan.

On this basis， in order to better protect biodiversity resources and achieve sustainabledevelopment in the future， the researchers put forward many suggestions for the future de?velopment of plant diversity in Yunnan. They claimed that government support was neededfor scientific research.

The related studies were recently published in Plant Diversitys special issue.

Reading Check

1. What is the first paragraph mainly about？

A. Yunnans biodiversity. B. Yunnans landscape.

C. Yunnans hot spots. D. Yunnans harbors.

2. Which part of Yunnan has a lot of rare plant species？

A. The northwest. B. The southwest.

C. The southeast. D. The northeast.

3. What problem is shown by the research result？

A. There are too few administrative units.

B. Some protected areas are too small.

C. Some protected areas are too close.

D. There is too little human participation.

4. What did researchers do to protect biodiversity resources？

A. They did a lot of experiments.

B. They volunteered at local reserves.

C. They stood against the government.

D. They offered useful advice.

Language Study

Ⅰ. Difficult sentences in the text1. Although its land area only accounts for 4.1% of China， Yunnan nearly harbors halfof the total number of higher plant species of China （about 19，000 species）， which has al?ways drawn the attention of researchers all over the world. 云南雖然土地面積僅占中國的4.1%，但其高等植物種類卻占中國的近一半（約1.9萬種），這引起了世界各國研究者的關(guān)注。

【點石成金】句中的Although引導的是讓步狀語從句；which引導的是非限制性定語從句，代指前面的內(nèi)容，且在從句中作主語。

2. They found that the northwest， south and southeast of Yunnan are the areas with thelargest number of species， endemic species and new species published in recent sevenyears. 他們發(fā)現(xiàn)云南西北部、南部和東南部是近七年來公布的物種數(shù)量、地方性物種和新物種數(shù)量最多的地區(qū)。

【點石成金】本句為主從復合句。that引導的從句作found的賓語；with the largestnumber of species...為with的介詞結(jié)構(gòu)作定語，修飾the areas；published in recent sevenyears為過去分詞結(jié)構(gòu)作定語。

Ⅱ. Text?centered chunks

be located in 位于……

be known as 作為……而著名

account for 占……

draw the attention of 吸引……的注意力

focus on 集中于

be based on 以……為基礎(chǔ)

put forward 提出