3．As tomato season comes，we can clearly realize that tomatoes offered in supermarkets all the year round can't compare with those that are just picked．After all，the rule of keeping tomatoes fresh is not to refrigerate（冷藏）them，which means that any tomato transported from far away will never be as good as one that is just picked．
Researchers from the U．S Department of Agriculture say they're found an easy way to keep supermarket tomatoes tasting great：Heat them up first．"To produce a better tasting tomato，we added a hot water pre-treatment step to the usual rule that growers follow，"Professor Jinhe Bai said．"We found that this pre-treatment step prevents flavor loss because of being stored in refrigerators．"
Because tomatoes often have a long way to go between being picked and reaching the supermarket shelves，farmers have to pick them while the fruit is green．The tomatoes are kept at a cold 41to 55degrees Fahrenheit during their trip to the store，which keeps them from producing enough enzymes（酶）that give tomatoes their smell and flavor．But when Bai and his team let green tomatoes sit in a bath of hot water for a few minutes，the tomatoes produced large amounts of the enzymes，keeping them tasty even after refrigeration．
The method isn't even the only one his group has experimented with．Growing green tomatoes with a kind of special oil or treating green tomatoes with a gas might also keep them fresh without having to be stored in refrigerators．
Bai even admits that refrigerated tomatoes can't hold a candle to fresh ones．"Generally，tomatoes should be picked when they turned completely red and then sold immediately，"Bai says．
32．The method of keeping tomatoes fresh is toD．
A．put them in a bag with other fruits
B．add some special oil to refrigerators
C．wash them in hot water before eating them
D．put them in hot water before refrigerating them
33．Many green tomatoes are picked early to make sureD．
A．they can be easily stored
B．they taste better than red ones
C．they can be sold at a good price
D．they are still fresh in supermarkets
34．Why do tomatoes become less delicious after being kept in refrigerators？A
A．They don't produce enough enzymes．
B．The temperatures are not low enough．
C．The refrigerators also store other foods．
D．The flavor changes easily in closed spaces．
35．What can be inferred from Bai's words in the last paragraph？D
A．It's better to grow tomatoes by ourselves．
B．It's convenient to store tomatoes in refrigerators．
C．It's necessary to hold a candle when picking tomatoes．
D．It's impossible to keep tomatoes as fresh as they're just picked．
分析 本文讲述了一种可以更好储存番茄的方法，并讲述了原理．
解答 32．D．细节理解题．由第二段To produce a better tasting tomato，we added a hot water pre-treatment step to the usual rule that growers follow，可知添加一个热水预处理步骤可以更好储存番茄，故选D．
33．D．细节理解题．由第三段Because tomatoes often have a long way to go between being picked and reaching the supermarket shelves，farmers have to pick them while the fruit is green．因为番茄采摘之间通常有很长的路要才能到达超市的货架上，农民不得不选择在水果绿的时候就摘下，故选D．
34．A．理解推断题．由第三段The tomatoes are kept at a cold 41to 55degrees Fahrenheit during their trip to the store，which keeps them from producing enough enzymes（酶）that give tomatoes their smell and flavor，可知保持在寒冷的41至55度时，就不会使它们从生产足够的酶来给西红柿味道和香味，故选．A．
35．D．理解推断题．由最后一句tomatoes should be picked when they turned completely red and then sold immediately，当番茄完全变红时，就应当被采摘下来，然后立即出售，可知他是不觉得可以使番茄保鲜得像刚摘下一样，故选D．
点评 在做阅读理解时，考生可快速阅读短文，通读测试题，明确考察点，在对应细读，加快做题速度．有时间还可以复查校对答案．
