2018年6月23日托?？荚囬喿x預測機經(jīng)（版本合集！）

2018年6月23日托?？荚?/a>日期臨近，各位備戰(zhàn)托福考試的考生們，來看看留學監(jiān)理網(wǎng)小編為大家整理的不同版本的閱讀預測機經(jīng)，放松一下緊張的心情吧！

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{版本1}

Butterflies are among the most extensively studied insects — it is estimated that 90 percent of the world's species have scientific names. As a consequence, they are perhaps the best group of insects for examining patterns of terrestrial biotic diversity and distribution. Butterflies also have a favorable image with the general public. Hence, they are an excellent group for communicating information on science and conservation issues such as diversity."

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Perhaps the aspect of butterfly diversity that has received the most attention over the past century is the striking difference in species richness between tropical and temperate regions. For example, in 1875 one biologist pointed out the diversity of butterflies in the Amazon when he mentioned that about 700 species were found within an hour's walk, whereas the total number found on the British islands did not exceed 66, and the whole of Europe supported only 321. This early comparison of tropical and temperate butterfly richness has been well confirmed.

A general theory of diversity would have to predict not only this difference between temperate and tropical zones, but also patterns within each region, and how these patterns vary among different animal and plant groups. However, for butterflies, variation of species richness within temperate or tropical regions, rather man between them, is poorly understood. Indeed, comparisons of numbers of species among the Amazon basin, tropical Asia, and Africa are still mostly "personal communication" citations, even for vertebrates. In other words, unlike comparison between temperate and tropical areas, these patterns are still in the documentation phase.

In documenting geographical variation in butterfly diversity, some arbitrary, practical decisions are made. Diversity, number of species, and species richness are used synonymously;little is known about the evenness of butterfly distribution. The New World butterflies make up the preponderance of examples because they are the most familiar species. It is hoped that by focusing on them, the errors generated by imperfect and incomplete taxonomy will be minimized.

托福閱讀題目：

1. Which aspect of butterflies does the passage mainly discuss?

(A) Their physical characteristics

(B) Their names

(C) Their adaptation to different habitats

(D) Their variety

2. The word "consequence" in line 2 is closest in meaning to

(A) result

(B) explanation

(C) analysis

(D) requirement

3. Butterflies are a good example for communicating information about conservation issues

because they

(A) are simple in structure

(B) are viewed positively by people

(C) have been given scientific names

(D) are found mainly in temperate climates

4. The word "striking" in line 8 is closest in meaning to

(A) physical

(B) confusing

(C) noticeable

(D) successful

5. The word "exceed" in line 11 is closest in meaning to

(A) locate

(B) allow

(C) go beyond

(D) come close to

6. All of the following are mentioned as being important parts of a general theory of diversity EXCEPT

(A) differences between temperate and tropical zones

(B) patterns of distribution of species in each region

(C) migration among temperate and tropical zones

(D) variation of patterns of distribution of species among different animals and plants

7. The author mentions tropicalAsia in lines 19 as an example of a location where

(A) butterfly behavior varies with climate

(B) a general theory of butterfly diversity has not yet been firmly established

(C) butterflies are affected by human populations

(D) documenting plant species is more difficult than documenting butterfly species

8. Which of the following is NOT well understood by biologists?

(A) European butterfly habitats

(B) Differences in species richness between temperate and tropical regions

(C) Differences in species richness within a temperate or a tropical region

(D) Comparisons of behavior patterns of butterflies and certain animal groups

9. The word "generated" in line 26 is closest in meaning to

(A) requested

(B) caused

(C) assisted

(D) estimated

{版本2}

閱讀1

Egypt選都問題，為什么選擇了一個叫做Ma的城市

第一段講的是地理位置上可以控制，可以控制全國，因為位置靠上，對比舊首都。此處有題，細節(jié)題，問為什么新首都比舊首都都好。

第二段講的是從經(jīng)濟貿(mào)易上，講新首都可以統(tǒng)治者控制經(jīng)濟，因為新首都M是經(jīng)濟運輸?shù)谋亟?jīng)之地。

第三段講的是這個首都可以提供pasture，為陸貿(mào)易提供便利。

第四段講的是河道的問題

閱讀2

農(nóng)藥的使用問題。農(nóng)藥開始使用，可以減少蟲害，但是由于蟲害的繁殖速度快和可大量繁殖，造成自然選擇(是這個意思)，同時農(nóng)藥大量殺死predator，但是predator就沒有這么幸運了，他們不能大量繁殖，而且毒素通過實物量可以傳遞到他們身體里，這一點造成了害蟲的數(shù)量的增加，最后一段提到了California的一種吃cotton害蟲，很難控制，因為他們的競爭對手和天敵被農(nóng)藥害死，所以農(nóng)民不能不極大用農(nóng)藥的量。

閱讀3

上石器時代

閱讀4

版本1：將sea grass適合什么情況下的海水環(huán)境，吸收沉淀物為養(yǎng)分什么的。

版本2：講egg的進化，一開始是軟的外殼，后來因為種種原因殼變硬了。

>>>點擊下載2018年托?？荚囶A測機經(jīng)匯總(版本合集!).PDF

2018年6月23日托福預測機經(jīng)

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任何關于托?？荚?/a>問題，比如托福閱讀考試有哪些注意事項，2018托福閱讀評分標準、托?？荚囎⒁馐马棥?a href="http://wxline.cn/meiguodaxue/" target="_blank">美國大學對托福成績要求是多少等問題，大家都可以在線咨詢或持續(xù)訪問該欄目的其它相關文章。

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