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D
There’s more evidence that what’s good for your heart is good for your head．A new study shows that people who run，swim or do other moderate intensity(中等强度的)exercise have brains that look，on average，10 years younger than the brains of couch potatoes．
“Our study showed that for older people，getting moderate intensity exercise may be protective，helping them keep their brains work better，”said Dr．Clinton Wright of the University．Of Miami，who led the study．But it’s not necessarily easy．Walking，golf，bowling and yoga didn’t count，and people need to start before they begin showing memory loss，Wright’s team reported in the journal Neurology．
The study of nearly 900 people who exercise regularly showed that 90 percent fell into the low-intensity group．These people are part of a larger group taking part in a bigger study called Northern Manhattan Study．They were asked how long and how often they exercised during the past two weeks．Five years later，they were tested for memory and thinking skills and got a brain MRI．Seven years after that，they took the memory and thinking tests again．The 10 percent who said they took part in moderate intensity exercise scored better on the tests．These included running，climbing，swimming，riding bicycles and so on．
“We found that those with moderate heavy activity had higher scores and slower decline than inactive patients when comparing the results，”the study team wrote．
Many studies have shown that exercise may not prevent Alzheimer’s but may delay it．The findings fit in with a study that found two years of exercising，eating healthier food and brain training can promote people’s memory function．
32．According to the study，moderate heavy exercise________.    
A．makes people’s heart better than their heads
B．helps people keep a younger brain
C．makes people ten years younger
D．makes people look like potatoes
33．What’s true about the study?
A．Most people surveyed took low-intensity exercise．
B．Only 900 people took part in the bigger study．
C．High-intensity exercise is better．
D．Ten people scored best on the test．
34．How did the study team come to the conclusion?
A．By observing people exercise．     B．By using examples．
C．By making a comparison． D．By doing a brain MRI．
35．What’s the best title for this passage?
A．How to keep healthy    B．Ways to make your brain work better
C．To exercise or not D．Moderate exercise keeps your brain younger
第二节(共5小题，每小题2分，满分10分)
    根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。
    Eleven-year old Nya lives in South Sudan．For seven months of the year，she has to make two long walks to a pond near her village to fetch water for her family．During the dry months，the family moves to a camp by a lake where Nya and her family dig the clay of the lake bed with their hands and wait for hours to gather a small amount of dirty water that trickles in．
    36 Often they are unable to go to school to learn how to read and write．
But did you know that water is one of the most abundant resources on our planet? Water makes up 71％of the Earth’s surface． 37．We often tend to take water for granted until it is in short supply．
    To bring our awareness to this life-giving resource，the United Nations determined in 1993 that March 22nd every year will be observed to celebrate World Water Day．
    Every year，the United Nations General Assembly sets a theme for the World Water Day． 38 The theme in 2016-water and jobs—intends to bring our attention to the quality of life of the workers who ensure the safety and availability of this critical resource．
39 Workers in factories around the world fall ill and die when they have poor access to clean water．
    In many countries，women and children like Nya walk several hours every day to bring home water to their families． 40 Now imagine，if clean and safe water was guaranteed—these children could be learning skills that could help them find better work．
A．But these jobs are often not paid for nor are they recognized．
B．This year’s theme is“Better Water，Better Jobs”．
C．What would happen if we run out of clean water?
D．Every day countless kids like Nya work hard to fetch clean water for their families．
E．Unfortunately only 3％of the water is fresh water that can support human and other animal life．
F．It is hard for these poor kids to fetch enough clean water．
G．Did you know that 340，000 workers die each year because of inadequate water supply?
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