英語四級考試備考復(fù)習(xí)資料

1、英語四級考試備考復(fù)習(xí)資料英語四級考試備考復(fù)習(xí)資料匯總1：閱讀練習(xí)題 There is evidence that the usual variety of high blood pressure is, in part, a familial disease. Since families have similar genes as well as similar environments, familial diseases could be due to shared genetic influences, to shared environmental factors, or to bo

2、th. For some years, the role of one environment factor commonly shared by families, namely dietary salt (i.e., sodium chloride), has been studied at Brookhaven National Laboratory. These studies suggest that long excess salt intake can lead to high blood pressure in man and animals. Some individuals

3、, however, and some rats consume large amounts of salt without developing high blood pressure. No matter how strictly all environmental factors were controlled in these experiments, some salt-fed animals never developed hypertension whereas a few rapidly developed very severe hypertension followed b

4、y early death. These marked variations were interpreted to result from differences in genetic constitution. By mating long successive generations of those animals that failed to develop hypertension from salt intake, a resistant strain (the R strain) has been evolved in which consumption of large qu

5、antities of salt fails to influence the blood pressure significantly. In contrast, by mating only animals that quickly develop hypertension from salt, sensitive strain (the S strain) has also been developed. The availability of these two strains permits investigations possible. They provide a plausi

6、ble laboratory model on which to investigate some clinical aspects of the human hypertension. More important, there might be the possibility of developing methods by which genetic susceptibility (敏感性) of human beings to high blood pressure can be defined without waiting for its appearance. Radioacti

7、ve sodium 22 was an important tool in working out the characteristics of the sodium chloride metabolism. 21. The study of the effects of salt on high blood pressure was carried out_. A. as members of the same family tend to use similar amounts of salt B. to explore the long-term use of a sodium base

8、d substance C. because it was proven that salt caused high blood pressure D. because of the availability of chemically pure salt and its derivatives 22. The main difference between S and R rats is their_. A. need for sodium 22 B. rate of mating C. reaction to salt D. type of blood 23. We can infer f

9、rom the article that sodium 22 can be used to_. A. control high blood pressure B. cure high blood pressure caused by salt C. tell the S rats from the R rats D. determine what a sodium chloride metabolism is like 24. The most beneficial results of the research might be_. A. development of diets free

10、of salt B. an early cure for high blood pressure C. control of genetic agents that cause high blood pressure D. the early identification of potential high blood pressure victims 25. Which of the statements best relates the main idea of this article? A. When salt is added rats and human beings react

11、similarly. B. The near future will see a cure for high blood pressure. C. The medical field is desperately in need of research. D. A tendency toward high blood pressure may be a hereditary factor. 21. A 22. C 23. D 24. D 25. D 英語四級考試備考復(fù)習(xí)資料匯總2：高頻詞組 名詞詞組和固定搭配 1.介詞+名詞 by accident 偶然 on account of 因為，由于

12、，為了的緣故 in addition to 另外，加之 in addition 除之外(還) in the air 流傳中 on (the/an) average 按平均值，通常 on the basis of 根據(jù)，在的基礎(chǔ)上 at best 充其量，至多 for the better 好轉(zhuǎn)，向好的方向發(fā)展 on board 在船(車或飛機)上 out of breath 喘不過氣來 on business 因公，因事 in any case 無論如何，不管怎樣 in case of 假如，如果發(fā)生;防備 in case 假使，以防(萬一) in no case 決不，無論如何不 by ch

13、ance 偶然，碰巧 in charge (of) 負責(zé)，管理 (a)round the lock 日夜不停地 in common 共用的，共有的 in conclusion 最后，總之 on condition (that) 如果 in consequence of 由于的緣故，因為 on the contrary 正相反 in contrast with/to 與對比起來，與形成對比 out of control 失去控制 under control 處于控制之下 at all cots 不惜任何代價，無論如何 at the cost of 以為代價 in the course of 在過

14、程中，在期間 of course 當然，自然 in danger 在危險中，垂危 out of danger 脫離危險 out of date 過時的，不用的 up to date 現(xiàn)代化的，切合目前情況的 in demand 非常需要的，受歡迎的 in debt 欠債，負債 in detail 詳細他 in difficulties 處境困難 in the distance 在遠處 off duty 下了班(的)，不在值班(的) on duty 在上班(的)，在值班(的) on earth 究竟，到底 at all events 無論如何，不管怎樣 in any event 無論如何，不管怎

15、樣 in the event of 萬一，倘若 for example 例如 in the face of 在面前;不顧 in fact 其實，實際上 in favo(u)r of 贊同，支持 on fire 著火，起火 on foot 步行 in force 生效，有效;在實施中;大量的 in front of 在面前，在前面 in future 今后，從今以后 in the future 在將來 in general 一般說來，大體上 on (ones) guard 警惕，提防;站崗，值班 in half 成兩半 at hand 近在手邊，在附近 by hand 用手，用體力 hand d

16、own 把傳下去 hand in hand 手拉手;密切關(guān)聯(lián)地，同時并進地 in hand (工作等)在進行中;在控制中 on hand 在手邊，在近處 on (the) one hand 一方面 on the other hand 另一方面 at heart 內(nèi)心里，本質(zhì)上 by heart 憑記性 at home 在家，在國內(nèi);舒適，無拘束;熟悉，精通 in hono(u)r of 為紀念，為了向表示敬意 on/upon ones hono(u)r 以名譽擔(dān)保 in a hurry 匆忙，急于 for instance 例如;比如 at intervals 不時，每隔一段時間(或距離) a

17、t (long) last 終于 at least 至少 at length 終于，最終;詳細地 in (the) light of 鑒于，由于 2.動詞+名詞 have/gain access to 可以獲得 takeinto account 考慮到，顧及，體諒 take advantage of 占的便宜，利用 pave the way (for) 鋪平道路，為作準備 pay attention to 注意 do/try ones best 盡力，努力 get/have the best of 戰(zhàn)勝 make the best of 充分利用 get/have the better of

18、戰(zhàn)勝，在中占上風(fēng) catch ones breath 屏息;喘氣，氣喘;歇口氣 take care 注意，當心 take care of 愛護，照料 take a chance 冒險，投機 take charge 開始管理，接管 keepcompany 陪伴 take (a) delight in 以為樂 make a difference 有影響，起(重要)作用 carry/bring/put into effect 使生效，實行，實現(xiàn) come/go into effect 生效，實施 take effect 生效，起作用 catch sbs eye 被某人看到，引起某人注意 keep a

19、n eye on 留神，照看，密切注意 make a face 做鬼臉 find fault with 抱怨，挑剔，找岔子 catch (on) fire 著火，開始燃燒 make fiends (with) 與()交朋友 be friends with 與友好 make fun of 取笑，拿開玩笑 keep sbs head 保持鎮(zhèn)靜 in the world 究竟，到底 lose sbs head 慌亂，倉皇失措 lose heart 喪失勇氣，失去信心 get/catch/take hold of 抓住，得到 page keep house 管理家務(wù) throw/cast light

20、on/upon 使人了解，闡明 bear/keep in mind 記住 have in mind 考慮到，想到 make up ones mind 下定決心，打定主意 bring/put into operation 實施，使生效，使運行 come/go into operation 施行，實行，生效 keep pace (with) 與()齊步前進，與()并駕齊驅(qū) play a part (in) 起作用，參與，扮演角色 take place 發(fā)生，進行，舉行 take the place of 代替，取代 put into practice 實施，實行 make progress 進步，

21、進展 give rise to 引起，導(dǎo)致為的原因 make sense 講得通，有意義，言之有理 catch sight of 發(fā)現(xiàn)，突然看見 (go) on the stage 當演員 take ones time 不著急，不慌忙 keep track of 與保持聯(lián)系 lose track of 失去與的聯(lián)系，不能跟上的進展 make use of 利用 put to use 使用 give way 讓路;屈服，讓步;倒塌，坍陷 make ones way 前往，行進，去 make way 讓路，騰出地方或位置 3.名詞詞組的其他形式 appeal to 呼吁，懇求 attempt at 企圖，努力 attitude to/towards 態(tài)度，看法 a great/good