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DAY6 打卡格式： 1. 做每题所化的时间 （可以让大家更好的把握自己的pace）
2. 逻辑链 （大家平时练习最重要是梳理好GMAT逻辑链）
3. 5个选项简单分析 （正确正确在哪，错误错误在哪）
打卡模版： 时间：2‘15 逻辑链：Premise：voles live in large groups from late autumn through winter, live in smaller groups from spring through early autumn. Conclusion：the mortality among young voles can explain the seasonal variation in group.
Logic: because the cold/food, the voles dead, they are together form late autumn through winter.
选项：
A.提到young voles 但是时间段the spring and early summer 不对。Pass
B.无关。
C.spring食物丰富，时间段不对。
D.时间点没有严格对应 late atumn 没有E严格。
E.bingo 时间完全对应。简单推断也向到mortality，所以选E
6-1 With a record number of new companies starting up in Derderia, and with previously established companies adding many new jobs, a record number of new jobs were created last year in the Derderian economy. This year, previously established companies will not be adding as many new jobs overall as such companies added last year. Therefore, unless a record number of companies start up this year, Derderia will not break its record for new jobs created. Which of the following is an assumption on which the argument relies? - In a given year, new companies starting up create more new jobs on average than do previously established companies.
- The number of people seeking employment is no larger this year than it was last year.
- This year, the new companies starting up will not provide substantially more jobs per company than did new companies last year.
- Previously established companies in Derderia will be less profitable this year than such companies were last year.
- The number of jobs created in the Derderian economy last year was substantially larger than the number of jobs lost.
6-2 Many people suffer an allergic reaction to certain sulfites, including those that are commonly added to wine as preservatives. However, since there are several wine makers who add sulfites to none of the wines they produce, people who would like to drink wine but are allergic to sulfites can drink wines produced by these wine makers without risking an allergic reaction to sulfites. Which of the following is an assumption on which the argument depends? A. These wine makers have been able to duplicate the preservative effect produced by adding sulfites by means that do not involve adding any potentially allergenic substances to their wine. B. Not all forms of sulfite are equally likely to produce the allergic reactions. C. Wine is the only beverage to which sulfites are commonly added. D. Apart from sulfites, there are no substances commonly present in wine that give rise to an allergic reaction. E. Sulfites are not naturally present in the wines produced by these wine makers in amounts large enough to produce an allergic reaction in someone who drinks these wines. 6-3 Which of the following most logically completes the passage? Concerned about financial well-being of its elderly citizens, the government of Runagia decided two years ago to increase by 20 percent the government-provided pension paid to all Runagians over 65. Inflation in the intervening period has been negligible, and the increase has been duly received by all eligible Runagians. Nevertheless, many of them are no better off financially than they were before the increase, in large part because ________. A. They rely entirely on the government pension for their income B. Runagian banks are so inefficient that it can take up to three weeks to cash a pension check C. They buy goods whose prices tend to rise especially fast in times of inflation D. The pension was increased when the number of elderly Runagians below the poverty level reached an all-time high E. In Runagia children typically supplement the income of elderly parents, but only by enough to provide them with a comfortable living 6-4 Last year all refuse collected by Shelbyville city services was incinerated. This incineration generated a large quantity of residue ash. In order to reduce the amount of residue ash Shelbyville generates this year to half of last year’s total, the city has revamped its collection program. This year city services will separate for recycling enough refuse to reduce the number of truckloads of refuse to be incinerated to half of last year’s number. Which of the following is required for the revamped collection program to achieve its aim? A. This year, no materials that city services could separate for recycling will be incinerated. B. Separating recyclable materials from materials to be incinerated will cost Shelbyville less than half what it cost last year to dispose of the residue ash. C. Refuse collected by city services will contain a larger proportion of recyclable materials this year than it did last year. D. The refuse incinerated this year will generate no more residue ash per truckload incinerated than did the refuse incinerated last year. E. The total quantity of refuse collected by Shelbyville city services this year will be no greater than that collected last year. 6-5 When storing Renaissance oil paintings, museums conform to standards that call for careful control of the surrounding temperature and humidity, with variations confined within narrow margins. Maintaining this environment is very costly, and recent research shows that even old oil paint is unaffected by wide fluctuations in temperature and humidity. Therefore, museums could relax their standards and save money without endangering their Renaissance oil paintings. Which of the following is an assumption on which the argument depends? - Renaissance paintings were created in conditions involving far greater fluctuations in temperature and humidity than those permitted by current standards.
- Under the current standards that museums use when storing Renaissance oil paintings, those paintings do not deteriorate at all.
- Museum collections typically do not contain items that are more likely to be vulnerable to fluctuations in temperature and humidity than Renaissance oil paintings.
- None of the materials in Renaissance oil paintings other than the paint are vulnerable enough to relatively wide fluctuations in temperature and humidity to cause damage to the paintings.
- Most Renaissance oil paintings are stored in museums located in regions near the regions where the paintings were created.
6-6 Which of the following most logically completes the argument? Yorco and Zortech are two corporations that employ large numbers of full-time workers who are paid by the hour. Publicly available records indicate that Yorco employs roughly the same number of such hourly wage workers as Zortech does but spends a far higher total sum per year on wages for such workers. Therefore, hourly wages must be higher, on average, at Yorco than at Zortech, since _____. - Zortech spends a higher total sum per year than Yorco does to provide its hourly wage workers with benefits other than wages
- the work performed by hourly wage workers at Zortech does not require a significantly higher level of skill than the work performed by hourly wage workers at Yorco does
- the proportion of all company employees who are hourly wage workers is significantly greater at Yorco than it is at Zortech
- overtime work, which is paid at a substantially higher rate than work done during the regular work week, is rare at both Yorco and Zortech
the highest hourly wages paid at Yorco are higher than the highest hourly wages paid at Zortech 6-7 In order to withstand tidal currents, juvenile horseshoe crabs frequently burrow in the sand. Such burrowing discourages barnacles from clinging to their shells. When fully grown, however, the crabs can readily withstand tidal currents without burrowing, and thus they acquire substantial populations of barnacles. Surprisingly, in areas where tidal currents are very weak, juvenile horseshoe crabs are found not to have significant barnacle populations, even though they seldom burrow. Which of the following, if true, most helps to explain the surprising finding? - Tidal currents do not themselves dislodge barnacles from the shells of horseshoe crabs.
- Barnacles most readily attach themselves to horseshoe crabs in areas where tidal currents are weakest.
- The strength of the tidal currents in a given location varies widely over the course of a day.
- A very large barnacle population can significantly decrease the ability of a horseshoe crab to find food.
Until they are fully grown, horseshoe crabs shed their shells and grow new ones several times a year. 6-8 From 1973 to 1976, total United States consumption of cigarettes increased 3.4 percent, and total sales of chewing tobacco rose 18.0 percent. During the same period, total United States population increased 5.0 percent. If the statements above are true, which of the following conclusions can be properly drawn? - United States manufacturers of tobacco products had higher profits in 1976 than in 1973.
- Per capita consumption of cigarettes in the United States was lower in 1976 than in 1973.
- The proportion of nonsmokers in the United States population dropped slightly between 1973 and 1976.
- United States manufacturers of tobacco products realize a lower profit on cigarettes than on chewing tobacco.
- A large percentage of United States smokers switched from cigarettes to chewing tobacco between 1973 and 1976.
6-9 A diet high in saturated fats increases a person’s risk of developing heart disease. Regular consumption of red wine reduces that risk. Per-capita consumption of saturated fats is currently about the same in France as in the United States, but there is less heart disease there than in the United States because consumption of red wine is higher in France. The difference in regular red-wine consumption has been narrowing, but no similar convergence in heart-disease rates has occurred. Which of the following, if true, most helps to account for the lack of convergence noted above? - Consumption of saturated fats is related more strongly to the growth of fatty deposits on artery walls, which reduce blood flow to the heart, than it is to heart disease directly.
- Over the past 30 years, per-capita consumption of saturated fats has remained essentially unchanged in the United States but has increased somewhat in France.
- Reports of the health benefits of red wine have led many people in the United States to drink red wine regularly.
- Cigarette smoking, which can also contribute to heart disease, is only slightly more common in France than in the United States.
- Regular consumption of red wine is declining dramatically among young adults in France, and heart disease typically does not manifest itself until middle age.
6-10 Which of the following most logically completes the reasoning? Either food scarcity or excessive hunting can threaten a population of animals. If the group faces food scarcity, individuals in the group will reach reproductive maturity later than otherwise. If the group faces excessive hunting, individuals that reach reproductive maturity earlier will come to predominate. Therefore, it should be possible to determine whether prehistoric mastodons became extinct because of food scarcity or human hunting, since there are fossilized mastodon remains from both before and after mastodon populations declined, and ______. - there are more fossilized mastodon remains from the period before mastodon populations began to decline than from after that period
- the average age at which mastodons from a given period reached reproductive maturity can be established from their fossilized remains
- it can be accurately estimated from fossilized remains when mastodons became extinct
- it is not known when humans first began hunting mastodons
- climate changes may have gradually reduced the food available to mastodons
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发表于 2020-9-5 11:03:40
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erderia will not break its record for new jobs created.
ublicly available records indicate that Yorco employs roughly the same number of such hourly wage workers as Zortech does but spends a far higher total sum per year on wages for such workers.