【正文】 A.To know about their growth rates.B.To find out how much they weigh.C.To check whether they were healthy.D.To assess the carbon amounts in them.（3）What advantage do city trees have over forest trees? A.They are more likely to access growth promoters.B.They can enjoy more water ing from the air.C.They can enjoy more shade from neighbors.D.They are better at peting for light.（4）What will probably be talked about if the passage is continued? A.How urban trees can live longer.B.Why city living makes trees die young.C.How trees respond to dry soil conditions.D.Why fastergrowing trees absorb more C02.【答案】 （1）D（2）A（3）A（4）B 【解析】【分析】本文是一篇說明文。一項(xiàng)新的研究發(fā)現(xiàn)：與長(zhǎng)在森林中的樹木相比，城市里的樹木長(zhǎng)得更快，但死得更早。 （1）考查推理判斷。根據(jù)第二段中的“the earth would be freezing or burning hot without CO2.”可知，如果沒有二氧化碳，地球?qū)?huì)極冷或極熱?？梢酝茢啵趸伎梢苑乐沟厍蜃兊貌贿m合居住。故選D。 （2）考查細(xì)節(jié)理解。根據(jù)第四段中的“To figure on how quickly trees were growing, researchers tracked their diameters.”可知，研究人員監(jiān)測(cè)樹木的直徑是為了了解樹木的生長(zhǎng)速度。故選A。 （3）考查細(xì)節(jié)理解。根據(jù)最后一段中的“Street trees also benefit from higher levels of nitrogen (氮）in rainwater. Nitrogen helps plants grow. Waste gases from gasburning cars also contain nitrogen, thus enriching city air with nitrogen. Later, rainwater may wash much of it to the ground.”可知，與生長(zhǎng)在森林中的樹木相比，城市里的樹木長(zhǎng)得更快是因?yàn)樗鼈儫o需與鄰近的樹木爭(zhēng)奪光照，也能得到更多的氮量，還更容易得到水。光、氮和水都可以促進(jìn)樹木的生長(zhǎng)。由此可以推斷，城市里的樹木比森林中的樹木更可能獲得生長(zhǎng)促進(jìn)劑。故選A。 （4）考查推理判斷。首句就提到了一項(xiàng)新的研究結(jié)果：城市里的樹木比森林中的樹木長(zhǎng)得更快，但死得更早；文章第三段說到“以前有研究表明森林會(huì)吸收二氧化碳，但是城市里的樹木的生長(zhǎng)、死亡和吸收二氧化碳的速度是否跟森林中的樹木一樣，這方面的數(shù)據(jù)不多。因此一些研究人員決定弄清楚”；文章第四段再次介紹了他們的研究發(fā)現(xiàn)：城市里的樹木比森林中的樹木長(zhǎng)得更快，但死得更早；文章最后一段介紹了城市里的樹木比森林中的樹木生長(zhǎng)得更快的幾個(gè)原因。由此可以推斷，文章接下來很可能就要介紹城市里的樹木死得更早的原因。故選B。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解和推理判斷兩個(gè)題型的考查，是一篇科研類閱讀，考生需要準(zhǔn)確掌握細(xì)節(jié)信息，并根據(jù)上下文進(jìn)行邏輯推理，從而選出正確答案。7．閱讀下列短文，從所給的四個(gè)選項(xiàng)（A、B、C、D）中選出最佳選項(xiàng)。 Supermarket shoppers who buy lots of foods on two for one deals are far more likely to be obese (肥胖的), a major study suggests. Cancer Research UK found that those with highest consumption of discounted foods were at 50 percent greater risk of obesity, pared with those with low takeup of such deals. The study of more than 16,000 households found almost one in three food and drink items in UK supermarket baskets were bought on promotion. And the discounts were far more likely to be applied to unhealthy foods, with almost half of all chocolate, crisps, popcorn, and savoury snacks bought on promotion. Shoppers whose baskets contained between 40 and 80 percent of goods on special offer were 54 percent more likely to be obese than those with a maximum 20 percent of foods on such deals. Those with highest takeup of the deals bought 30 percent less fruit, and nearly 25 percent fewer vegetables than those shunning the deals. The study follows a government consultation on proposals to ban buy one, get one free deals on unhealthy foods and supermarket guilt lanes as part of its childhood obesity strategy. One in five children are overweight or obese when they start primary school, rising to around one in three when they leave. Research has found that obesity increases the risk of 13 different types of cancer including bowel and breast disease. Alison Cox, director of cancer prevention at Cancer Research UK, said: The government39。s proposed 9 p. m. ban on junk food ads is a step forward in fighting childhood obesity. Now we want to see restrictions on price promotions for unhealthy food and drink items, as well as those strategically placed at checkouts. This will help families to make healthier choices. There isn39。t one magic fix for the problem, but getting rid of these encouragements to buy unhealthy food is key to changing it.（1）Who are far more likely to be obese? A.Those who buy food and drink items in UK supermarkets.B.People who prefer buy one, get one free deals on unhealthy foods.C.Shoppers whose baskets contained a maximum 20 percent of discounted foods.D.Households with low takeup of chocolate, crisps, popcorn, and savoury snacks.（2）What does the underlined word shunning in Paragraph 4 mean? A.ClosingB.AcceptingC.AvoidingD.Negotiating（3）To fight childhood obesity, the government has ________. A.suggested a ban on unhealthy food ads at a specific period of the dayB.restricted price promotions for unhealthy food and drink itemsC.officially prevented junk food from sale after 9 p. m.D.helped families to make healthier choices（4）What might be a solution to the problem? A.Changing people39。s attitudes towards healthy diet.B.Finding out the reason why people like junk food.C.Removing what makes people buy unhealthy food.D.Teaching consumers the right way of picking food.【答案】 （1）B（2）C（3）A（4）C 【解析】【分析】本文是一篇說明文，文中介紹了一項(xiàng)研究的結(jié)果。研究表明在超市購(gòu)買“買一贈(zèng)一”促銷食品的顧客更有可能肥胖。因?yàn)檫@些促銷的食品大部分都是不健康食品。研究還表明肥胖與多種癌癥有關(guān)。故在這篇文章中作者建議禁止超市的這種促銷活動(dòng)。 （1）考查細(xì)節(jié)理解。根據(jù)第一段中的“Supermarket shoppers who buy lots of foods on ‘two for one’ deals are far more likely to be obese(肥胖的)”可知超市購(gòu)買“買一贈(zèng)一”促銷食品的顧客更有可能肥胖。故選B。 （2）考查詞義猜測(cè)。本段主要是在喜歡購(gòu)買促銷食品的人比不買促銷食品的人之間做了一下比較。根據(jù)第四段中的“Those with highest takeup of the deals bought 30 percent less fruit, and nearly 25 percent fewer vegetables than those shunning the deals.”可知那些最喜歡購(gòu)買促銷食品的人比不買促銷食品的人買的水果要少30%，蔬菜少幾乎25%。由此可知shunning意為“避免，避開”。故選C。 （3）考查推理判斷。根據(jù)倒數(shù)第二段中的“The government39。s proposed 9 p. m. ban on junk food ads is a step forward in fighting childhood obesity.”據(jù)可知作為為與小孩肥胖現(xiàn)象作斗爭(zhēng)的一個(gè)措施，政府已經(jīng)建議晚上九點(diǎn)禁止播放垃圾食品廣告。故選A。 （4）考查推理判斷。根據(jù)最后一段中的“There isn39。t one magic fix for the problem, but getting rid of these encouragements to buy unhealthy food is key to changing