专业八级英语考试改错题练习

专业八级英语考试改错题练习2018

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　　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“通过……方式”，如果吧means作为先行词，后面定语从句就要有by，这句话意思是“生物钟指的是生物调节其行为的方式”。

　　2.^the time – to

　　adjust A to B 指A适应B，这句指“在没有任何提示的情况下，是自己的行为方式适应外界的时间”。

　　3.factors^--which/ that

　　这是一个定语从句，修饰factors，which/that做主语不能省略。

　　4.clocks—clock’s

　　5.to(第二个)--for

　　account for意思是explain，为固定词组。

　　6.^an—as

　　这句话意思是“这些是由于对规律环境的`适应进化而来的”。

　　7.on—of

　　be independent of 意思是“独立于……，不依赖……”

　　8.changed—changing

　　文章要表达的是“变化着的长度”，应该用现在分词。

　　9. up去掉或者将up改为that

　　hold本身就有“持……观点”的意思。

　　10. potential—potentially

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