1、【 精品教育资源文库 】 Unit 23 Conflict 课时练 (一 ) 阅读理解提速练 练速度 (限时： 35 分钟 ) . 阅读理解 A (2018 黑龙江哈尔滨六中一模 ) With fuel costs rising and airlines finding more fees to impose(强加，征税 ) on travelers every day， airfare isnt getting any cheaper.Since you cant drive to all your dream destinations， flying is the only way to
2、 go sometimes and， undeniably，the fastest.Luckily， there are plenty of ways to find the most affordable fares and also avoid paying as many extra charges as possible when you plan ahead. Get the best fare.Airlines put out their fare sales on Tuesday morning， making this day the best day to book a fl
3、ight for less. Fly during the least popular times.Tuesday， Wednesday and Saturday are the slowest days to fly， which means cheaper deals than the rest of the week.You can also find reduced rates on early morning flights， since many people dont like to get up before the sun to get to the airport.Earl
4、ier boarding times can also considerably cut down your chances of getting bumped on an overbooked flight or delayed because of other delayed flights or mechanical issues. Choose your seat later.Some airlines charge you to pick your seat when you book online， adding even more to the bottom line of yo
5、ur ticket cost.If you show up early on your travel day， you can still get suitable seats.Some of the best seats get held back until flight day， unless others are willing to pay extra for them ahead of time，so you still have the chance at one of those. Fly on holidays.You already know that summer is
6、the most expensive time to fly，and even though most other times are more affordable， the days surrounding holidays can be crazy.Save big if youre willing to travel on major holidays， such as Thanksgiving and Christmas. Dont wait until the lastminute to book.Many travelers dont know that theres a swe
7、et spot for booking and getting the best price on your tickets.Book too early or too late and you could end up paying more than you need to.The best time to book is between three months and six weeks from when you want to travel. 【语篇解读】 本文主要讲述了在燃油费和机场建设费日益增长的今天，乘坐飞机会是非常 昂贵的。本文告诉了读者几点减少费用，利用飞机便宜出行的建议
8、。 1 The passage is intended to _. A inform us how to book a cheaper ticket B tell us how to choose the seat and time for a flight C persuade us into travelling by air D inform us of some best ways to save money on a flight 解析： D 推理题。根据文章内容，主要讲述了在燃油费和机场建设费日益增长的今天，乘坐飞机会是非常昂贵的。本文告诉了读者几点减少费用，利用飞机便宜出行的建议
9、。结合Luckily， there are plenty of ways to find the most affordable fares and also avoid paying as many extra charges as possible when you plan ahead.目的在于给读者相关的建议，故选 D。 2 Which of the following statements is not true? A Airline travelers are supposed to pay more for the rising fuel costs. B Early morni
10、ng flight will help avoid some bumps and delays. C You can only book your seat online before or on your flight day. 【 精品教育资源文库 】 D Booking too early may cost you more money on your tickets. 解析： C 细节题。根据文章内容 If you show up early on your travel day, you can still get suitable seats.Some of the best s
11、eats get held back until flight day，unless others are willing to pay extra for them ahead of time， so you still have the chance at one of those.由此可知，并不是在你乘坐飞机的前一天或者当天才能在网上预订座位，故选 C。 3 Which is the best time to book the flight for October 2nd? A May 15th. B August 15th. C June 15th. D September 15th.
12、 解析： B 推理题。根据文章内容 The best time to book is between three months and six weeks from when you want to travel.预订机票的最后时机是你想要乘机的前 3 个月至 6 个星期前。如果想要 10 月 2 号出行，结合 4 个选项，则最佳的订票时间应为 8 月 15号。故选 B，其他时间要么过早要么过迟 B (2018 安徽皖南八校联考 ) If you want to slow aging, you might want to eat less.This finding is good news i
13、f you were a mouse.The researchers studied mice, not people. John Price and other researchers studied two groups of mice.One group was able to eat as much as it wanted.The researchers limited what the mice in the other group ate.Their diet had 35 percent fewer calories than the first group of mice.
14、Price says the mice with the diet restrictions were “more energetic and suffered fewer disease.” They were not just living longer but seemed to stay younger for a longer period of time. The researchers found that fewer calories slow down a natural mechanism in cells called ribosomes.Price explains t
15、hat ribosomes are responsible for making important proteins in the cells.But with fewer calories, they slow down.This gives the cells more time to repair themselves. The researchers say ribosomes use from 10 to 20 percent of the cells energy to make those proteins.Price wrote that “because of this,
16、it is impractical to destroy an entire ribosome” when it starts to break down.However, “repairing individual parts of the ribosome on a regular basis enables ribosomes to continue producing high quality proteins for longer than they would otherwise.This top quality production, in turn, keeps cells a
17、nd the entire body functioning well.” Price said, “ribosome is a very complex machine, like a car.”They need “maintenance to replace the parts that wear out the fastest.When tires wear out ， ” he explained, “you dont throw the whole car away and buy a new one.It costs less to replace the old tires.”
18、 “Food ， ” he said, “isnt just material to be burned its a signal that tells our body and cells how to respond.”Price said the findings help to explain how exactly our bodies age.And this may “help us make more educated decisions about what we eat.” 【语篇解读】 本文属于科技与发明类。主要介绍了通过在老鼠身上所作的实验，发现减少食物有利于身体健康，
19、让人更长寿。 4 What can we know about the mice with limited calories from the study? A They can keep healthy easily. B They need more energy to be active. C They can look younger than they are. D They will live a longer life like humans. 解析： A 推理判断题。根据第三段 “the mice with the diet restri ctions were more 【
20、 精品教育资源文库 】 energetic and suffered fewer disease” 饮食限制的老鼠更精力充沛，患疾病的几率也更小。根据句意可知限制饮食的老鼠更健康，故选 A。 5 What will happen to ribosomes if there are fewer calories? A They will completely break down. B They make proteins in the cells slowly. C They will produce high quality proteins more. D They may need mo
21、re time to repair themselves. 解析： B 推理判断题。根据第四段句意：研究人员发现更少的热量减慢了称为核糖体的细胞的自然机制。 Price 说明核糖体负责制造细胞中重要的蛋白质。但是热量越少，它们就制造的速度越慢。分析本句可知核糖体在细胞中制造蛋白质的速度减慢了。故选 B。 6 Price explained the ribosomes role of repairing themselves by _. A telling a story B listing basic data C making comparisons D experimenting on m
22、ice 解析： C 推理判断题。根据第六段：普赖斯说： “ 核糖体是一个非常复杂的机器，就像一辆汽车。 ” 他们需要 “ 维修 ” 来替换最快磨损的部件。 “ 当轮胎磨损时， ” 他解释道，“ 你不要把车全扔掉，买一辆新的。 ” 更换旧轮胎成本较低。普赖斯把核糖体比作是一辆非常复杂的汽车，可知是通过比较的，故选 C。 7 What does the text mainly deal with? A Food decides how long you live. B Can you slow down your aging process? C Eating less may help you live longer. D Should your diet be reduced for your health? 解析： D 主旨大意题。根据第一段可知想要年轻就要少吃。第三段限制食物的老鼠要更活跃更健康。及最后一段这可能会 “ 帮助我们对我们所吃的东西做出更多的教育 决定 ” 。可知为了健康应该减少食物。故选 D。 C (2018 湖北枝江第二高级中学模拟 ) Ammie Reddick from East Kilbride, Lanarkshire, was only 18 months old when she had th
