【RC】GMAT機(jī)經(jīng)3月整理

字號(hào):

RC-1: 關(guān)于員工跳槽的文章(3大段,超長(zhǎng)),解釋人們?yōu)槭裁刺巯忍岢鼋忉宔mbadness的3個(gè)因素,然后有個(gè)s還有一個(gè)b,(人名的確是s和b!,讓我印象特別深刻)提出解釋embadness的另外2個(gè)因素,文章不難,至少?zèng)]有生詞。
    問題(1)主題,(2)in order to 題,(3)except細(xì)節(jié)。
    RC-2: 一篇是講關(guān)于早年經(jīng)歷對(duì)作家的影響,第一段是說了這個(gè)理論(姑且這么稱作吧),第二段是用一個(gè)人作為例子來(lái)支持這個(gè)說法
    RC-3: 某種植物,利用黃蜂(wasp/parasitic wasp寄生蜂)----毛毛蟲(caterpillar)的天敵,攻擊毛毛蟲。
    【版本一】一篇是講毛毛蟲,植物,還有捕捉一種毛毛蟲的動(dòng)物,這三者之間的關(guān)系,這篇是最長(zhǎng)的,我沒太看懂....不好意思啊各位... 主要是講什么/怎么樣導(dǎo)致植物分泌一種物質(zhì)使捕食者來(lái)消滅毛毛蟲
     ;第一段猜測(cè)這三者的關(guān)系
     第二段就是科學(xué)家通過試驗(yàn)來(lái)驗(yàn)證這個(gè)猜測(cè)
    有益補(bǔ)充:WASP會(huì)把它的幼蟲LAVAE寄生到一種蟲身上. 這種蟲吃一種植物.這種植物在這種蟲吃它時(shí)會(huì)分泌一種CHEMICAL, 這種CHEMICAL 會(huì)吸引WASP. 所以這種植物是通過另外一種生物來(lái)抵抗它的天敵.
    【版本二】植物利用黃蜂攻擊毛毛蟲
     [舊JJ內(nèi)容]講一種樹在受到caterpillar的攻擊的時(shí)候可以釋放出一種氣味以吸引wasps來(lái)攻擊這種caterpillar, 不僅如此,科學(xué)家還發(fā)現(xiàn)這種樹還可以判斷caterpillar是否在攻擊自己而釋放出不同的氣味.
    第一題問樹枝被刮斷時(shí)黃蜂會(huì)有什么反應(yīng),
    有一道主題題(一共4題),另外的記不起來(lái),sorry
    再煩請(qǐng)機(jī)經(jīng)作者確認(rèn)是不是這個(gè)JJ?(2004年11月JJ)(感謝一位MM)
    Parasitic and predatory arthropods often prevent plants from being severely damaged by killing herbivores as they feed on the plants. Recent studies show that a variety of plants, when injured by herbivores, emit chemical signals that guide natural enemies to the herbivores. It is unlikely that herbivore-damaged plants initiate the production of chemicals solely to attract parasitoids and predators. The signaling role probably evolved secondarily from plant responses that produce toxins and deterrents against herbivores and antibiotics against pathogens. To effectively function as signals for natural enemies, the emitted volatiles should be clearly distinguishable from background odors, specific for prey or host species that feed on the plant, and emitted at times when the natural enemies forage. Our studies on the phenomena of herbivore-induced emissions of volatiles in corn and cotton plants and studies conducted by others indicate that (i) the clarity of the volatile signals is high, as they are unique for herbivore damage, produced in relatively large amounts, and easily distinguishable from background odors; (ii) specificity is limited when different herbivores feed on the same plant species but high as far as odors emitted by different plant species and genotypes are concerned; (iii) the signals are timed so that they are mainly released during the daytime, when natural enemies tend to forage, and they wane slowly after herbivory stops.
    RC-4 England中世紀(jì)領(lǐng)主與農(nóng)奴的關(guān)系
    【版本1】有一篇說England中世紀(jì)領(lǐng)主(lord)和農(nóng)奴(serf)的關(guān)系的。
    第一段,首先介紹領(lǐng)主和農(nóng)奴的關(guān)系。說領(lǐng)主因?yàn)閾碛型恋貦?quán)就可以剝削農(nóng)奴:任意征收財(cái)產(chǎn),以及稅收,etc,還有幾項(xiàng)忘記了。(有題except細(xì)節(jié)題,定位就可以找到答案)這段最后說由于領(lǐng)主只對(duì)個(gè)人享受感興趣,而農(nóng)奴受壓迫等,造成中世紀(jì)英國(guó)農(nóng)業(yè)生產(chǎn),科技等都停滯。(有道infer題,問作者同意以下什么觀點(diǎn),就是這句的paraphase)
    第二段,話鋒一轉(zhuǎn),說盡管如此,還有其他原因。還應(yīng)該考慮non-serf的因素。(還是道細(xì)節(jié)體,問non-serf通過什么方式影響)
    第三段,做個(gè)總結(jié)。后面印象不深了,因?yàn)闆]有題。