【導(dǎo)讀】袁隆平種植的是被稱(chēng)為“超級(jí)雜交水稻”的稻種。這種特殊的稻種使得同樣的田地多收獲20%的產(chǎn)量。用他的雜交水稻種子，農(nóng)民們種出的糧食比以前多了一倍。他寧愿把時(shí)間花在自己的愛(ài)好上。他從夢(mèng)中醒來(lái)，希望能種植一種可以養(yǎng)活更多人的水稻。的中國(guó)農(nóng)民一樣，過(guò)去50年來(lái)，他一直在努力幫助他們。她努力忍住淚水。為使工作按時(shí)完成，我做了一番努力。跟警察談話前麗莎與自己的良知作斗爭(zhēng)。

　　

【正文】 you may think. 1． According to the passage， harvesting rainwater can . A． benefit people economically and environmentally B． promote the development of economy and peace C． benefit our health and the surroundings as well D． make us live a better life in the near future 答案 A 解析 細(xì)節(jié)理解題。根據(jù)文章首段可知，無(wú)論從經(jīng)濟(jì)還是環(huán)保的角度考慮，收集雨水都是非常有益的。 2． What can we learn from Paragraph 3? A． Harvesting rainwater in America is not mon. B． There is no need for Americans to harvest rainwater. C． Americans don’ t show interest in harvesting rainwater. D． Americans can’ t collect rainwater from the roof correctly. 答案 A 解析 推理判斷題。由第三段可知，美國(guó)的情況與 Bermuda 的情況不同。由此可推知，在利用雨水這方面美國(guó)做得并不好，故選 A項(xiàng)。 3． What is the fourth paragraph mainly about? A． How to fix the equipment under the ground. B． How to reduce the cost of new equipment. C． How to take advantage of the rainwater. D． How to harvest rainwater effectively. 答案 D 解析 主旨大意題。由第四段可知，該段主要講述的是如何有效地收集雨水，故選 D 項(xiàng)。 4． What is the best time for us to harvest rainwater to drink? A． Before it reaches our roofs. B． After it runs over our lawns. C． After it drops from the roof. D． After it runs into the street. 答案 C 解析 細(xì)節(jié)理解題。根據(jù)第四段和第五段可知，在雨水從房頂落下時(shí)收集，短時(shí)間內(nèi)收集的量多，不僅收集效率高，而且更易于凈化處理成可以飲用的水。 B Why do men live a shorter life than women？ The latest research indicates that men’ s hearts going into a rapid decline when they reach middle age could be the cause. The research of ageing on the heart has shown that women’ s longevity may be linked to the fact that their hearts do not lose much pumping power with age. “ We have found that the power of the male heart falls by 20 percent～ 25 percent between 20 and 70 years of age， ” said the head of the study， Samantha of Liverpool John Moores University in the UK. “ Within the heart there are millions of cells which make it the ages of 20 and 70， one third of those cells die and are not replaced in men， ” said Samantha.“ This is part of the ageing process.” What amazes scientists is that the female heart suffers very little loss of these healthy 70 year old woman’ s heart could work almost as perfectly as a 20 year old one’ s. “ This gender(性別 ) difference might give the reason why men live shorter than women， ” said studied over 250 healthy men and women between the ages of 17 and 80， who are mainly healthy persons so as to reduce the influence of disease.“ The team has yet to think about why ageing suffers a greater loss on the male heart， ” said Samantha. But there is also good news— men can enjoy the health of their hearts with regular stressed that women should also take regular exercise to stop their leg muscles getting weaker as they age. 5． The underlined word “ longevity” in the second paragraph means “ ” ． A． health B． long life C． ageing D． effect 答案 B 解析 詞義猜測(cè)題。根據(jù)第一段的第一句話 “ Why do men live a shorter life than women？ ” 可 推知 “ longevity” 的意思是 “ 長(zhǎng)壽 ” 。 6． The text mainly talks about . A． men’ s heart cells B． women’ s ageing process C． the gender difference D． hearts and long life 答案 D 解析 主旨大意題。本文探討了男人比女人壽命短的主要原因，那就是與心臟細(xì)胞數(shù)量的減少有關(guān)。男人的心臟細(xì)胞在 20歲到 70 歲之間會(huì)喪失三分之一，因而心臟的功能降低了 20%～25%，而女人的心臟細(xì)胞在這個(gè)年齡階段幾乎沒(méi)有喪失。因此，本文的中心話題是心臟與長(zhǎng)壽。 7． According to the text， the UK scientists have known that———— . A． men have fewer cells than women when they were born B． women can produce the cells that make the heart beat C． the female heart suffers less loss of the cells with age D． women will never suffer the loss of pumping power with age 答案 C 解析 細(xì)節(jié)理解題。根據(jù)第五段的第一句 “ What amazes scientists is that the female heart suffers very little loss of these cells.” 可知答案為 C。 8． If you want to live a long life， you should . A． enable your heart to beat much faster B． think about the reason for ageing C． take regular exercise D． stop your cells from being lost 答案 C 解析 細(xì)節(jié)理解題。根據(jù)最后一段的內(nèi)容可知，男人經(jīng)常鍛煉可以擁有健康的心臟，女人經(jīng)常鍛煉可以避免腿部肌肉的衰弱無(wú)力。因此，要想長(zhǎng)壽，就要積極鍛煉。