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2017年專八考試改錯考前指導(dǎo)試題

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2017年專八考試改錯考前指導(dǎo)試題

　　part 1

　　The term biological clock is applied to the means which living __1__things adjust their activity patterns, without any obvious cue, the __2__　time of day, or the month, or the year. They are affected but little,if at all, by drugs, chemicals, or wide temperature differences—factors may alter substantially the rates of all ordinary processes of __3__the body.

　　The nature of the biological clocks mechanism is still a mystery __4__two quite different theories have been advanced to account to __5__them. According to the first of these theories, each individual have envolved, aided by natural selection, an adaptation to the rhythmic __6__environment. It has now become independent on the environment __7__according to this view, the clocks are not perfect timers.

　　They require regular corrections by the natural light and tide cycles and the changed lengths of the day throughout the year. __8__The other theory holds up living things react continuously to __9__their rhythmic physical environment. The setting of their biological clocks, therefore, involves a constant adjustment to subtle clocks which are potential perfect times. __10__

　　答案:

　　1.^which—by

　　by the means of 指“通過……方式”，如果吧means作為先行詞，后面定語從句就要有by，這句話意思是“生物鐘指的是生物調(diào)節(jié)其行為的方式”。

　　2.^the time – to

　　adjust A to B 指A適應(yīng)B，這句指“在沒有任何提示的情況下，是自己的行為方式適應(yīng)外界的時間”。

　　3.factors^--which/ that

　　這是一個定語從句，修飾factors，which/that做主語不能省略。

　　4.clocks—clock’s

　　5.to(第二個)--for

　　account for意思是explain，為固定詞組。

　　6.^an—as

　　這句話意思是“這些是由于對規(guī)律環(huán)境的適應(yīng)進(jìn)化而來的'”。

　　7.on—of

　　be independent of 意思是“獨(dú)立于……，不依賴……”

　　8.changed—changing

　　文章要表達(dá)的是“變化著的長度”，應(yīng)該用現(xiàn)在分詞。

　　9. up去掉或者將up改為that

　　hold本身就有“持……觀點(diǎn)”的意思。

　　10. potential—potentially

　part 2

　　One question is often risen in response to international __1__test comparisons: Do these results really mean anything? In the past, international testing programs have been criticized on variety of grounds. Two allegations, in particular, have __2__been common: first, that other nations have not tested as large a percentage of their student population, and nevertheless their __3__

　　scores have been inflated; and second, that our best students are among the world’s best, with our average brought down by a __4__large cohort of low-achievers.

　　Whatever the historic validity of such concerns, they are now, __5__if anything, reversed. Particularly in the fourth and eighth grade,education has become universal in all of the leading nations.Therefore, in science, the percentage of randomly selected __6__U.S. schools and students that actually did participate at the eighth-grade level was just 73 percent—the third-lowest of all

　　45 participating countries, and 11 percentage points under the __7__United States had third-lowest overall participation rate for both __8__grades in both subjects. Japan, Taiwan and Singapore all had participation percentages in the 90s.

　　How about our best and brightest? At the fourth-grade level,there is some real truth to the idea that the best American students __9__are among the best in the world. Looking only at the top 5 percent of test-takers, American fourth-graders beat the average of wealthy nations by 13 percentage points. By the eighth grade, however, the tables have turned, with America’s brightest students fallen to __10__percentage points behind their foreign peers.

　　答案:

　　1. risen—raised

　　提出問題應(yīng)該用及物動詞raise

　　2. ^variety—a

　　A variety of 為固定搭配

　　3.nevertheless—hence/thus/consequently

　　根據(jù)上下文，這里應(yīng)該用表示結(jié)果關(guān)系的連接詞，而不是轉(zhuǎn)折關(guān)系的連接詞

　　4.^brought—being

　　這里應(yīng)該用表示被動的`現(xiàn)在分詞短語做獨(dú)立主格結(jié)構(gòu)

　　5.historic—historical

　　Historic是“歷史上著名的;與過去時代有關(guān)的”這里應(yīng)該用historical是“歷史上的”

　　6.Therefore—Moreover/Furthermore