各位要參加2020年GMAT考試的小伙伴們注意啦！今天幫考網要給各位小伙伴分享2020年GMAT考試《GMAT數學》的模擬試題，感興趣的小伙伴趕快來看看哦！

1、Normally, the pineal gland governs a person’s sleep-wake cycle by secreting melatonin in response to the daily cycle of light and darkness as detected by the eye. Nonetheless, many people who are totally blind due to lesions in the visual cortex of the brain easily maintain a 24-hour sleep-wake cycle. So the neural pathway by which the pineal gland receives information from the eye probably does not pass through the visual cortex.

For purposes of evaluating the argument it would be most useful to establish which of the following?

(A) Whether melatonin supplements help people who have difficulty maintaining a 24-hour sleep cycle to establish such a pattern

(B) Whether the melatonin levels of most totally blind people who successfully maintain a 24-hour sleep-wake cycle change in response to changes in exposure to light and darkness

(C) Whether melatonin is the only substance secreted by the pineal gland

(D) Whether most people who do not have a 24-hour sleep-wake cycle nevertheless have a cycle of consistent duration

(E) Whether there are any people with normal vision whose melatonin levels respond abnormally to periods of light and darkness

題目類型：

evaluate the argument

題目翻譯：

通常，PG通過分泌M來控制一個人的睡-醒循環(huán)，而M是眼睛所探測到的光暗的反應。然而，許多因為大腦視覺皮質受到損傷致盲的人可以很容易地維持24小時的睡-醒循環(huán)。所以，從眼睛到PG的神經傳導可能不通過大腦的視覺皮質。以下哪一項最有助于評估這段論述的正確性?

解題思路：

無既定思路，逐項分析。

逐項分析：

A、M并非越多越好，補充M有可能導致過量，故無法得出確切結論，排除。

B、正確選項。符合題干主旨。

C、M是不是PG分泌的唯一物質。無關項。

D、沒有24小時睡-醒循環(huán)的人是不是有他們特定的周期。無關項。

E、對光暗的異?？赡苡泻芏嘣?，不一定是視覺皮質引起的，排除。

正確選項：B

2、Vargonia has just introduced a legal requirement that student-teacher ratios in government-funded schools not exceed a certain limit. All Vargonian children are entitled to education, free of charge, in these schools. When a recession occurs and average incomes fall, the number of children enrolled in government-funded schools tends to increase. Therefore, though most employment opportunities contract in economic recessions, getting a teaching job in Vargonia’s government-funded schools will not be made more difficult by a recession.

Which of the following would be most important to determine in order to evaluate the argument?

(A) Whether in Vargonia there are any schools not funded by the government that offer children an education free of charge

(B) Whether the number of qualified applicants for teaching positions in government-funded schools increases significantly during economic recessions

(C) What the current student-teacher ratio in Vargonia’s government-funded schools is

(D) What proportion of Vargonia’s workers currently hold jobs as teachers in government-funded schools

(E) Whether in the past a number of government-funded schools in Vargonia have had student-teacher ratios well in excess of the new limit

題目類型：

evaluate the argument

題目翻譯：

V要求公立學校的學生教師比不得超過一個特定的數值。所有的V地的學生都有權在公立學校接受免費教育。當經濟危機發(fā)生的時候，平均收入會下降，此時到公立學校上學的人會增加。因此，在經濟危機中，到V地的公立學校找一份教師的工作不會很難。以下哪一項最有助于評估這段論述的正確性?

解題思路：

無既定思路，逐項分析。

逐項分析：

A、在V地，是不是有非公立的學校也為學生提供免費教育。無關項。

B、正確選項。如果答案是“是”，那么在經濟危機中到V地的公立學校找一份教師的工作就會很難;如果答案是“否”，就不會很難。

C、V地公立學?，F在的學生教師比例是多少。無關項。

D、V地的勞動力現在有多少在公立學校當老師。無關項。

E、過去V地公立的學校有沒有學生教師比超過現在新規(guī)定的。無關項。即使過去有，以后也不會有，因為規(guī)定是新的。

正確選項：B

好了，以上就是2020年GMAT考試《GMAT數學》模擬試題（7）的全部內容了，如果各位小伙伴還有不明白的地方，可以進入幫考網咨詢了解哦！