1、专题强化练(六)阅读理解之词句猜测题(限时25分钟)对应学生用书(单独成册)第115页A(2020长沙统一模拟)If youll be taking vacation time in the coming year and plan on flying，here are some useful tips for buying a cheap ticket.When to buyIf youre going to buy tickets for domestic flights，check prices on Tuesday afternoons.This is an old tip but s
2、till useful because most US.carriers continue to release sales on Tuesday morning，and competitors quickly drop their fares to match the better deals.When to flyWeekdays continue to be generally cheaper times to fly than weekends for most flights.In the US.，the cheapest days are typically Tuesday，Wed
3、nesday and Saturday.A good itinerary(旅行计划)for the expensive US.spring break travel period is scheduled from Tuesday to Saturday，but it will save you money(in most cases)over weekendtoweekend travel.Where to flyWe continue to see good deals to Boston and Denver and more and more nice prices to Chicag
4、o，Seattle and Washington，D.C.As for Europe，there have been surprising deals throughout the fall and those will continue into the winter.Direct flights vs.connecting flightsCompare the price of direct flights with that of connecting flights.Sometimes adding a stop to your route will save you money，an
5、d it might be enough to endure the extra long flying day.An example: San Francisco to Raleigh: $553 for a direct flight，$362 with one stop.Youd better think twice about the direct flight for San Francisco to Raleigh.Compare，compare，compareStifle_the_impulse to go to your favorite airline site to pur
6、chase tickets without doing any comparison.Example：Lets say you want to fly from New York to London and figuring your favorite US.legacy carrier will get you there for the best price$554 for a round trip.However，the comparison site also shows a cheaper flight from the same legacy carrier($521)See wh
7、at youre missing when you fail to compare?语篇解读本文为乘飞机旅行的游客提供了一些有用的购买便宜机票的建议，包括注意购买的时间、出行时间、旅行目的地等。1When can you possibly find the best price for flights within the US.?AOn Monday morning.BOn Thursday morning.COn Tuesday afternoon.DOn Sunday morning.解析：细节理解题。根据When to buy部分可知，在星期二下午美国境内航班的价格最佳，故C项正确。答
8、案：C2What does the underlined phrase “Stifle the impulse” probably mean?AFeel free to do something.BSuppress the desire to do something.CGet well prepared for something.DMake a quick decision on something.解析：词义猜测题。根据画线短语所在部分的小标题可知，该部分是建议游客买机票时要做比较，并结合画线短语所在句可知，此句是说抑制住你不做任何比较就去你最喜欢的航空公司网站买机票的冲动。B项意为“抑
9、制住做某事的欲望”，故B项符合文义。答案：B3Who is the text intended for?AThose who usually choose first class for their flights.BThose who want to find suggestions on where to fly.CThose who are travelling during the spring break.DThose who are looking for the best airline ticket prices.解析：推理判断题。根据第一段可知，如果你明年要休假并打算乘飞机旅
10、行，这里有一些有用的购买便宜机票的建议，故可推知，本文是写给那些寻找最佳机票价格的人，故D项正确。答案：DB(2020开封一模)Dont like seeds in your tomatoes？You might be pleased to know that seedless ones have been created by gene editing.This could create a wide range of seedless fruits，but few may ever be seen in the supermarket if regulators decide to tre
11、at geneedited crops in the same way as genetically engineered(转基因的)ones.Several seedless fruits，from bananas to grapes，are already available，but have mostly appeared by luck rather than design.And although there are a few seedless varieties of tomatoes，theyve taken researchers many years to create.N
12、ow it can be done very quickly，as Keishi Osakabe at Tokushima University in Japan has shown.His team used the CRISPR geneediting technology to make fruits develop even though no seeds had begun to form.“We havent tasted them yet，but in theory they should taste the same，” says Osakabe.There have been
13、 a few efforts to create seedless tomatoes using earlier genetic engineering techniques.These methods take longer time compared with CRISPR.Some “seedless” fruits just have very small seeds，and still require pollination(授粉)But completely seedless fruits like the edited tomatoes do not require pollin
14、ation at all.Such plants could improve food security by reducing our reliance on smaller bee populations，says Saul Cunningham at the Australian National University.Many fruit growers buy bees to pollinate their crops.There is a deficiency for farmers，however.Seedless plants usually have to be grown
15、from cuttings，which involves more labor than planting seeds.CRISPR could be used to develop other types of fruit that dont require pollinators，as well as introduce beneficial mutations(突变)，says Osakabe.But to make it on to the supermarket，geneedited plants may have to meet the same standards as gene
16、tically engineered plants，which would greatly increase costs.Some argue that since gene editing is used to introduce mutations already found in some of the plants we eat，it should not require such strict regulations.语篇解读该文主要介绍了使用基因编辑技术可以更快地培育出无籽或无核水果，但这种水果要想进入超市，可能必须符合与转基因水果相同的标准。4What has been the
17、problem with seedless tomatoes created in the past?ATheir taste was not very good.BThey still had a few big seeds.CTheir genes could not be recognized.DThey took quite a long time to create.解析：细节理解题。根据第三段中的“theyve taken researchers many years to create”和第五段中的“These methods take longer time compared
18、with CRISPR.”可知，过去培育无籽西红柿很耗时，故选D。答案：D5What did Keishi Osakabes team do?AThey edited tomatoes genes.BThey changed the taste of tomatoes.CThey made seedless bananas and grapes.DThey created genetically engineered tomatoes.解析：细节理解题。根据第四段中的“His team used the CRISPR geneediting technology to.no seeds had
19、 begun to form.”可知，Keishi Osakabe的团队编辑了西红柿的基因，故A项正确。答案：A6Why is CRISPR better than previous methods?AIt will still require pollination.BIt will remain unaffected without bees.CIt will reduce peoples reliance on food security.DIt will make many growers buy bees for pollination.解析：推理判断题。根据第八段中的“CRISPR
20、 could be used to develop other types of fruit that dont require pollinators.”可知，CRISPR可用于研制其他类型的不需要传粉者的水果，由此可推知，CRISPR不会受到没有蜜蜂的影响，故选B。答案：B7What does the underlined word “deficiency” in Paragraph 7 probably mean?ADanger.BDisadvantage.CBenefit. DSolution.解析：词义猜测题。根据第七段中的“Seedless plants usually have
21、to be grown from cuttings，which involves more labor than planting seeds.”可知，种植无籽植物通常需要投入更多劳动，由此可推知，这对农民来说并不是什么好事，故画线词的含义与B项词义最接近。danger“危险”，disadvantage“劣势”，benefit “益处”，solution “解决办法”。答案：B词汇积累：Para.1：seedless adj.无籽的，无核的第6题：unaffected adj.未受影响的构词：gene n基因genetic adj.基因的；遗传学的genetically adv.从遗传学角度；
22、从基因方面genetics n遗传学regulate v(用规则条例)约束，控制，管理regulator n(某行业等的)监管者，监管机构regulation n规章制度；规则；法规pollinate vt.授粉，传粉pollination n授粉pollinator n传花粉者难句分析：But to make it on to the supermarket，geneedited plants may have to meet the same standards as genetically engineered plants，which would greatly increase co
23、sts.(Para.9)分析：the same.as.意为“与相同的”；which引导非限制性定语从句，在从句中作主语，该从句修饰“geneedited plants may have to.genetically engineered plants”。译文：但是，要进入超市，基因编辑植物可能必须符合与转基因植物相同的标准，这将大大地增加成本。C(2020广州阶段考试)The Silk Road is arguably the most famous longdistance trade route of the ancient world.This passage connected Eur
24、ope in the West with China in the East，and allowed the exchange of goods，technology，and ideas between the two civilizations.Although merchants could make huge profits traveling on the road，it was not without risk.The main Silk Road started in Changan(known today as Xian)，the early Han Dynastys capit
25、al.Travelers commencing their journey from this city could take a northern route that would take them across Chinas northwestern provinces.After this，they would face the Gobi Desert，arguably the greatest danger of the Silk Road.The Gobi Desert，the largest desert in Asia，consists mainly of rocky，hard
26、 earth.This feature made it easier for traders to travel across，compared to sandy deserts like the neighboring Taklimakan Desert.Like other deserts，the Gobi Desert is dry and hot，and therefore the biggest challenge travelers faced was obtaining enough water for themselves as well as for their camels
27、.So，rest stops were created along the route，allowing travelers to rest，eat and drink.These places also promoted the exchange of goods，and even ideas，amongst the travelers who stopped there.Usually，the rest stops were placed within a days journey of each other.In this way，travelers could avoid spendi
28、ng too much time in the desert，which would make them be targets for robbers，another danger of the Silk Road.Once through the Gobi Desert，travelers would continue their journey into Iran，Turkey，and finally Europe.While this part of the journey may have been less dangerous，it is not entirely without p
29、eril.语篇解读作为古代闻名的商道，“丝绸之路”让商人们可以经此挣钱，但也伴随着种种风险。8The underlined word “it” in the first paragraph refers to_Amaking huge profitsBtraveling on the Silk RoadCexchanging goods and ideasDconnecting different civilizations解析：代词指代题。it所在句是一个主从复合句，前半句为让步状语从句，前后形成转折，表示尽管穿行“丝绸之路”的商人可以获得高收益，但这也不是没有危险的，且下文讲到的危险也都与
30、行走在“丝绸之路”上相关，所以it指代的应该是“行走在丝绸之路上”，故选B。答案：B9Why was the Gobi Desert easier to cross than other deserts?AThe deserts surface was easier to walk on.BCamels for transportation were easier to find.CIt was smaller and could be crossed in less time.DThere were more natural water sources available.解析：细节理解题。
31、根据第三段中的“The Gobi Desert，the largest desert in Asia，consists mainly of rocky，hard earth.This feature made it easier for traders to travel across.”可知，由于戈壁滩地面较为坚硬、好走，所以比较好穿越，故选A。答案：A10What can we guess about the rest stops in the Gobi Desert?AThey offered travelers free accommodation.BThey were located
32、 around the edges of the desert.CTravelers staying there were often attacked by criminals.DThey were shared by travelers from different countries.解析：推理判断题。根据第四段中的“These places also promoted the exchange of goods，and even ideas，amongst the travelers who stopped there.”可推知，休息处接待来自不同国家的旅客，故选D。答案：D11Wha
33、t is the passage mainly about?AThe origins of the Silk Road.BThe benefits of the Silk Road.CThe difficulties faced by Silk Road travelers.DThe cultural exchanges among Silk Road travelers.解析：主旨大意题。根据文章结构可知，作者在第一段给出了中心句“Although merchants could make huge profits traveling on the road，it was not without risk.”，在中间几段讲述了商旅们在戈壁滩上面临的困难以及其他危险，最后一段再次强调即使过了戈壁滩，但还有其他危险等待着他们，故选C。答案：C词汇积累：Para.1：arguably adv.可以说Para.2：commence v开始；着手Para.3：trader n商人sandy adj.铺满沙子的；含沙的
