必修5 Unit5 First aid（核心素养过关练）-2021年高考英语一轮复习学与练

必修5 Unit5 First aid
基础练
Ⅰ.单词拼写
1. Several days later, when the video was played on the graduation ceremony, it was well received.
1. On seeing my younger sister’s watery eyes, I hugged her and comforted her in a low voice.
2. Alice sat on the sofa quietly with tears pouring down her face.
3. To her parents’ relief, the girl recovered with no lasting injury to her brain.
4. My sister tries to squeeze her feet into shoes that are too small.
5. The program called “Smash” aims to help people deal with the pressure of living in big cities like Beijing.
6. One of the station staff saw he was in difficulty and came to his aid．
7. The survivors of the powerful earthquake lived in the temporary (临时的) tents until the new houses were built.
8. Having a fever is one of the symptoms (症状) that you have when you get a cold.
9. This article discussed the concepts behind Web 2.0 and how they can apply (应用) to business.
10. If Jennifer gets any worse, we must phone for an ambulance (救护车).
11. The skin, whose functions are very complex, is our body’s largest organ which acts as a barrier (屏障) against disease and the sun’s harmful rays.
12. 【2019天津卷】Reading is a vital (至关重要的) part of my life. Reading satisfies my desire to keep learning.

Ⅱ.单句填空
1. It was her great determination and hard work that led to her success.
2. I still remember the moment when the flood poured (pour) into the house in all directions.
3. The heavy stress from the study was unbearable (bearable), so Li Lin got depressed and decided to give up.
4. A woman was found stabbed repeatedly (repeat)with a knife.
5. Bitten (bite) by a dog, the little boy did not dare to play with dogs again.
6. When Susan fell off her bicycle, her only injury (injure) was a twisted ankle.
7. 【2019全国卷Ⅰ书面表达】I firmly (firm) believe that I can be a qualified volunteer.
8. The burning plastic gave off poisonous (poison) gas, which is harmful to our health.
9. We like to live a life full of varieties and our tastes are various (vary)
10. People had to treat themselves in their own way before they received the treatment sent by the government. (treat)
11. Don’t press me any longer. These days, I can’t fall asleep because the coming final exam is putting great pressure on me. (press)
12. The applicants who want to apply for the position should hand in their applications. (apply)
13. The people in the flooded area fought bravely against the natural disaster. Their bravery deserved to be praised. (brave)
14. The firefighter almost got choked (choke) because of the heavy smoke in the house.
15. The poor little boy was lying in the middle of the road, bleeding (bleed) very heavily.
16. 【2018全国卷Ⅱ】If you like, a squeeze of fresh lemon juice on the bananas will prevent them turning (turn) brown.

Ⅲ.短语检测
1. Hannah was busy with work but she still tried her best to squeeze out (挤出) some time from her tight schedule to visit her mother.
2. The manner in which young children are spoken to varies depending on (依据,根据) who is present.
3. Having been told over and over again (反复地), he still made the same mistakes，which made his parents crazy.
4. In any case, whether cloning is a blessing or a curse remains to be turned over; but one thing is certain that it will make a great/big difference (对……产生很大的影响) our future.
5. Scientists are trying to find ways to prevent this kind of disease from (阻止……以免) spreading.
6. The oil is burning. Don’t come near or you might get burned (烫伤).
7. John was presented with (被授予) an award at the ceremony to recognize his wisdom and bravery.
8. This morning, I spent more than an hour collecting all the books, newspapers and other things in my office and then putting them in place (在适当的地方).
9. Robert suddenly fell ill (生病), but the doctors couldn’t find out the reason in such a short time.
10. When we visited Paris，my niece acted as (充当) our guide and showed us around lots of places of interest.

Ⅳ.重点句型
1. There are other times when giving first aid quickly will definitely make a difference.
2. The little boy won’t go to sleep unless his mother tells (tell) him a story.
3. Unless invited (invite), I will not attend his birthday party.
4. But, as you can imagine, it is a cherished memory for me.
5. It is not how much you read but what you read that counts (count).
6. 【2016北京卷书面表达】 When it comes to protecting the environment, everyone’s contribution makes a great/big difference (很有作用).
7. If possible (如果可能的话), you had better go to his home to express your thanks for his timely help.
8. It is vital to set a goal (设定一个目标是很重要的) before the new school year begins.
9. If we can do as mentioned above, There is no doubt that (毫无疑问) we can master English.
10. The knowledge that my mother had taught me helped me solve the problem.
è It is the knowledge that my mother had taught me that helped me solve the problem.(强调句型)
11. In face of failure, it is vital that we (should) keep (keep) up a good state of mind.
12. The professor had just finished his speech when students rushed out of the classroom.

Ⅴ.课文语法填空
As everyone knows, the skin is essential to us, and it acts as a barrier 1.against disease, poisons and the sun’s harmful rays as well as giving us a sense of touch. Besides, our skin can sometimes be burned due 2.to our carelessness. Therefore, first aid shows its importance in the 3.treatment (treat) of burns.
Generally speaking, burns, 4.which are caused by hot liquids, fire, radiation and so on, can be divided into three types—first degree, second degree and third degree burns depending on 5.the injured layers of the skin.
All 6.various (variety) degree burns need first aid. If someone is burned, you should not only take his clothing off the burned area 7.unless it is stuck to it, but also other clothing and jewellery near the burn.
To minor burns, the cool water proves to be 8.helpful (help) in stopping the burning process. It’s best to place burns under 9.gently (gentle) running water for about 10 minutes. For the second degree burns, put wet clothes on them and you can keep the cloths cool by putting them in the cool water, 10.squeezing (squeeze) the water out and placing them on the burned area over and over again. But to severe burns, get the victim to the doctor or hospital immediately.














必修5 Unit5 First aid
提升练
I. 阅读理解
A
【2020新高考全国I卷】Race walking shares many fitness benefits with running, research shows, while most likely contributing to fewer injuries. It does, however, have its own problem.
Race walkers are conditioned athletes. The longest track and field event at the Summer Olympics is the 50-kilometer race walk, which is about five miles longer than the marathon. But the sport’s rules require that a race walker’s knees stay straight through most of the leg swing and one foot remain in contact (接触) with the ground at all times. It’s this strange form that makes race walking such an attractive activity, however, says Jaclyn Norberg, an assistant professor of exercise science at Salem State University in Salem, Mass.
Like running, race walking is physically demanding, she says, According to most calculations, race walkers moving at a pace of six miles per hour would burn about 800 calories(卡路里) per hour, which is approximately twice as many as they would burn walking, although fewer than running, which would probably burn about 1,000 or more calories per hour.
However, race walking does not pound the body as much as running does, Dr. Norberg says. According to her research, runners hit the ground with as much as four times their body weight per step, while race walkers, who do not leave the ground, create only about 1.4 times their body weight with each step.
As a result, she says, some of the injuries associated with running, such as runner’s knee, are uncommon among race walkers. But the sport’s strange form does place considerable stress on the ankles and hips, so people with a history of such injuries might want to be cautious in adopting the sport. In fact, anyone wishing to try race walking should probably first consult a coach or experienced racer to learn proper technique, she says. It takes some practice.
【语篇解读】这是一篇说明文。短文介绍了竞走相比跑步有诸多的优势，但是之前受过伤的人，要想从事这样运动要谨慎，最好咨询专家的建议。
1. Why are race walkers conditioned athletes?
A. They must run long distances. B. They are qualified for the marathon.
C. They have to follow special rules. D. They are good at swinging their legs.
【答案】C
【解析】细节理解题。根据第二段“But the sport’s rules require that a race walker’s knees stay straight through most of the leg swing and one foot remain in contact with the ground at all times.”可知，但这项运动的规则要求竞走者的膝盖在摆动腿的大部分时间保持伸直，一只脚始终与地面接触。由此可知，竞走运动员是需要具备某些条件的运动员是因为运动员需要遵守特殊的规则。故选C项。
2. What advantage does race walking have over running?
A. It’s more popular at the Olympics. B. It’s less challenging physically.
C. It’s more effective in body building. D. It’s less likely to cause knee injuries.
【答案】D
【解析】细节理解题。根据最后一段“As a result, she says, some of the injuries associated with running, such as runner’s knee, are uncommon among race walkers.”可知，一些与跑步有关的损伤，比如跑步者的膝盖，在竞走者中并不常见。由此可知，竞走与跑步相比的优势是不太可能导致膝盖受伤。故选D项。
3. What is Dr. Norberg’s suggestion for someone trying race walking?
A. Getting experts’ opinions. B. Having a medical checkup.
C. Hiring an experienced coach. D. Doing regular exercises.
【答案】A
【解析】细节理解题。根据最后一段Dr. Norberg说的话“In fact, anyone wishing to try race walking should probably first consult a coach or experienced racer to learn proper technique(事实上，任何想尝试竞走的人都应该首先咨询教练或有经验的竞走运动员，学习适当的技巧。)”可知，Dr. Norberg建议想尝试竞走的人征询专家的建议。故选A项。
4. Which word best describes the author’s attitude to race walking?
A. Skeptical. B. Objective. C. Tolerant. D. Conservative.
【答案】B
【解析】推理判断题。根据第一段“Race walking shares many fitness benefits with running, research shows, while most likely contributing to fewer injuries. It does, however, have its own problem.”可知，研究表明，竞走和跑步一样有很多健身益处，而且它还很少导致受伤。不过，它也有自己的问题。由此判断出作者对于竞走的态度是客观的。故选B项。
B
【2020浙江卷】Challenging work that requires lots of analytical thinking, planning and other managerial skills might help your brain stay sharp as you age, a study published Wednesday in the journal Neurology suggests.
Researchers from the University of Leipzig in Germany gathered more than 1, 000 retired workers who were over age 75 and assessed the volunteers’ memory and thinking skills through a battery of tests. Then, for eight years, the scientists asked the same group to come back to the lab every 18 months to take the same sorts of tests.
Those who had held mentally stimulating(刺激), demanding jobs before retirement tended to do the best on the tests. And they tended to lose cognitive(认知) function at a much slower rate than those with the least mentally challenging jobs. The results held true even after the scientists accounted for the participants’ overall health status.
“This works just like physical exercise, ” says Francisca Then, who led the study. “After a long run, you may feel like you’re in pain, you may feel tired. But it makes you fit. After a long day at work-sure, you will feel tired, but it can help your brain stay healthy. ”
It’s not just corporate jobs, or even paid work that can help keep your brain fit, Then points out. A waiter’s job, for example, that requires multitasking, teamwork and decision-making could be just as stimulating as any high-level office work. And “running a family household requires high-level planning and coordinating(协调), ” she says. “You have to organize the activities of the children and take care of the bills and groceries.”
Of course, our brains can decline as we grow older for lots of reasons-including other environmental influences or genetic factors. Still, continuing to challenge yourself mentally and keeping your mind busy can only help.
【语篇解读】这是一篇说明文。《神经病学》杂志发布的一则研究显示，需要大量的分析思考、细致规划和其他管理技能有挑战性的工作，有可能会帮助你的大脑随着年龄的增长而保持敏锐。
5. Why did the scientists ask the volunteers to take the tests?
A. To assess their health status. B. To evaluate their work habits.
C. To analyze their personality. D. To measure their mental ability.
【答案】D
【解析】细节理解题。根据第二段第一句“Researchers from the University of Leipzig in Germany gathered more than 1,000 retired workers who were over age 75 and assessed the volunteers’ memory and thinking skills through a battery of tests.(来自德国莱比锡大学的研究人员召集了1000多名75岁以上的退休老人，并通过一系列的测试对他们的记忆力和思维能力进行了评估。)”可知，科学家让志愿者做测试是为了测试他们的心智能力。故选D项。
6. How does Francisca Then explain her findings in paragraph 4?
A. By using an expert’s words. B. By making a comparison.
C. By referring to another study. D. By introducing a concept.
【答案】B
【解析】推理判断题。根据第四段中Francisca Then说的话“This works just like physical exercise,( 这就像体育锻炼一样有效。)”及接下来进一步的解释“长跑后人就会感到痛苦和疲惫，但它确实能强身健体。工作一天下来会感到劳累，但这也使你的大脑处于健康状态”可知，Francisca Then是通过与“身体锻炼”作比较来解释他的发现的。故选B项。
7. Which of the following is the best title for the text?
A. Retired Workers Can Pick Up New Skills
B. Old People Should Take Challenging Jobs
C. Your Tough Job Might Help Keep You Sharp
D. Cognitive Function May Decline As You Age
【答案】C
【解析】主旨大意题。第一段“Challenging work that requires lots of analytical thinking, planning and other managerial skills might help your brain stay sharp as you age(需要大量的分析思考、细致规划和其他管理技能有挑战性的工作，有可能会帮助你的大脑随着年龄的增长而保持敏锐。)”是本文的主题句，结合全文内容可知，文章主要讲述了有挑战性的工作可能会使大脑保持敏捷，所以C项“困难的工作可能有助于大脑保持敏捷”适合作本文标题。故选C项。
C
【2014四川卷】A schoolgirl saved her father’s life by kicking him in the chest after he suffered a serious allergic (过敏的) reaction which stopped his heart.
Izzy, nine, restarted father Colm’s heart by stamping (踩) on his chest after he fell down at home and stopped breathing.
Izzy’s mother, Debbie, immediately called 999 but Izzy knew doctors would never arrive in time to save her father, so decided to use CPR.
However, she quickly discovered her arms weren’t strong enough, so she stamped on her father’s chest instead.
Debbie then took over with some more conventional chest compressions (按压) until the ambulance arrived.
Izzy, who has been given a bravery award by her school, said: “I just kicked him really hard. My mum taught me CPR but I knew I wasn’t strong enough to use hands. I was quite scared. The doctor said I might as well be a doctor or a nurse. My mum said that Dad was going to hospital with a big footprint on his chest.”
“She’s a little star,” said Debbie, “I was really upset but Izzy just took over. I just can’t believe what she did. I really think all children should be taught first aid. Izzy did CPR then the doctor turned up. Colm had to have more treatment on the way to the hospital and we’ve got to see an expert.”
Truck driver Colm, 35, suffered a mystery allergic reaction on Saturday and was taken to hospital, but was sent home only for it to happen again the next day. The second attack was so serious that his airway swelled, preventing him from breathing, his blood pressure dropped suddenly, and his heart stopped for a moment.
He has now made a full recovery from his suffering.
【语篇解读】本文是记叙文。作者主要讲述了9岁的小女孩Izzy当父亲心脏病发作时采取急救的事情。Izzy的母亲曾经教给Izzy一些急救措施，当看到父亲心脏病发作的时候，她因为手的力气小，而用脚去踩父亲的胸口，以达到使心脏恢复跳动的目的。机智勇敢的Izzy不仅救了父亲，而且还因此受到了学校的奖励。
8. Izzy kicked her father in the chest ________
A. to express her helplessness B. to practise CPR on him
C. to keep him awake D. to restart his heart
【答案】D
【解析】细节理解题。根据文章第二段Izzy, nine, restarted father Colm’s heart by stamping (踩) on his chest after he fell down at home and stopped breathing.可知，Izzy用脚踩父亲胸口的目的就是为了让他的心脏恢复跳动。故选D。
9. What’s the right order of the events?
①Izzy kicked Colm. ②Debbie called 999. ③Izzy learned CPR. ④Colm’s heart stopped.
A.3124 B.4231 C.3421 D.4312
【答案】C
【解析】细节理解题。Izzy学会急救方法是最先发生的事情，之后是父亲晕倒之后，母亲去拨打了急救电话，而Izzy怕医生不能及时赶到，而又去对父亲采取了必要的急救措施。故选C。
10. Why does the author write the news?
A. To describe a serious accident.
B. To prove the importance of CPR.
C. To report a 9-year-old girl’s brave act.
D. To call people’s attention to allergic reaction.
【答案】C
【解析】推理判断题。在文章中作者主要讲述了当父亲发病，呼吸心脏停止的时候，Izzy采取急救行动救父亲的故事，通过这件事描写了小女孩lzzy的勇敢，而其他选项内容片面，不能反应文章的中心。故选C。

II.语法填空
【2017全国III卷】Lots of people find it hard to get up in the morning and put the blame on the alarm clock. In fact, the key to easy morning wake-up lies in resting your body clock 11 Here is how to make one.
● 12 In order to make a change, you need to decide why it’s important. Do you want to get up in time to have breakfast with your family, get in some exercise, or just be better prepared for your day? Once you are clear about your reason, tell your family or roommates about the change you want to make.
l Rethink mornings. Now that you know why you want to wake up, consider re-arranging your morning activities. If you want time to have breakfast with your family, save some time the night before by setting out clothes, shoes, and bags. 13 That’s a quarter-hour more you could be sleeping if you bought a coffee maker with a timer.
l Keep your sleep/wake schedule on weekends. If you’re tired out by Friday night, sleeping in on Saturday could sound wonderful. But compensating on the weekends actually feeds into your sleepiness the following week, a recent study found. 14
l Keep a record and evaluate it weekly. Keep track of your efforts and write down how you feel. After you’ve tried a new method for a week, take a look at your record. 15 If not, take another look at other methods you could try.
A. Get a sleep specialist.
B. Find the right motivation.
C. A better plan for sleep can help.
D. And consider setting a second alarm.
E. If the steps you take are working, keep it up.
F. Stick to your set bedtime and wake-up time, no matter the day.
G. Reconsider the 15 minutes you spend in line at the café to get coffee.
【答案】11-15 CBGFE
【语篇解读】本文是一篇说明文，主要介绍了如何帮助人们制定-一个计划去调节生物钟，确保起床不再是一件令人头疼的事。
11. C根据后句中的关键词one可以判断，该空中应该出现单数名词。再通读全文可知文章是介绍如何让起床不再困难的一个计划，由此判断C选项符合语境。
12. B 本段内容是建议人们要先确定为什么要早起，早起的目的是什么，也就是早起的动机是什么。由此推断B可以概括本段中心。
13. G 根据下句内容可知，作者建议人们买一个可以定时的咖啡机，这样可以节约15分钟的喝咖啡时间，能够多睡15分钟，文中的a quarter-hour 和选项中的15 minutes呼应，是信息提示词。故选G。[来源:学科网]
14.F 根据段落小标题可知，本段是建议人们在周末也要坚持自己的作息时间，由此推断Stick to your set bedtime and wake-up time, no matter the day.和本段标题意思相同。故选F。
15.E 后句建议人们如果这样做没作用就尝试新办法，由此推断该空与If not对应，提出如果有效果的话如何去做。故选E。

III. 完形填空
【2020浙江卷改编】 I’ve been farming sheep on a hillside for 54 years. I use a small tractor to get about. My dog Don always sits beside me in the passenger seat.
One morning I 16 a lost lamb, near where a highway cuts through my land. The lamb had become separated from its 17 , so I jumped out of the tractor to 18 it while Don stayed in his seat.
Lamb and mother 19 , I turned back to the tractor only to see it move suddenly away from me. This was so 20 because I had put the handbrake on when I jumped out. 21 Don had somehow made the vehicle move.
My heart froze in my chest as I saw the tractor heading towards the 22 . I ran desperately but failed to 23 . It crashed through a wooden fence and disappeared.
Heart in mouth, I 24 the fence and looked over. The tractor was 25 against the crash barrier in the central reservation, having miraculously(奇迹般地) crossed the busy road with fast-flowing traffic. I couldn’t see Don, but as I 26 the tractor he jumped out onto the road, apparently 27 , and dashed back to me.
The police 28 and the highway ran normally again. I couldn’t quite believe my 29 it turned out no one got badly hurt. Don was given a special 30 that night—I didn’t want him thinking I was angry with him.
16. A. dropped B. spotted C. carried D. returned
17. A. kids B. friends C. owner D. mother
18. A. ask about B. play with C. tend to D. run into
19. A. freed B. switched C. reunited D. examined
20. A. unexpected B. dangerous C. embarrassing D. difficult
21. A. Fortunately B. Generally C. Immediately D. Obviously
22. A. crowd B. highway C. field D. hill
23. A. take off B. catch up C. hold back D. get out
24. A. fixed B. noticed C. reached D. closed
25. A. resting B. running C. parking D. turning
26. A. abandoned B. approached C. recognized D. repaired
27. A. unclean B. uncertain C. unhurt D. unhappy
28. A. arrived B. replied C. survived D. waited
29. A. ability B. dream C. luck D. idea
30. A. meal B. test C. job D. lesson
【答案】16-20. BDCCA 21-25. DBBCA 26-30. BCACA
【解析】这是一篇记叙文。文章主要讲了作者开车带着它的狗去田地，路上发现了一只和它妈妈走散的小羊。作者下车去照看小羊，把自己的狗留在了车上。后来，作者帮助小羊找到了妈妈，谁知竟发现自己的狗开着拖拉机冲到了高速路上。作者赶紧沿途追赶，害怕造成严重的后果。幸运的是，最后没有人受伤。这真是一个奇迹！
【16题详解】考查动词词义辨析。句意：一天早上，我在山顶的田野里发现了一只迷路的小羊，那里有一条高速公路穿过我的田地。A. dropped下降；B. spotted发现；C. carried搬； D. returned返回。下文说小羊和它的妈妈走散了，所以我是无意中发现了一只迷路的小羊。故选B。
【17题详解】考查名词词义辨析。句意：小羊和它的妈妈走散了，所以我跳下拖拉机去照看它，而Don还坐在它的座位上。A. kids小孩；B. friends朋友；C. owner主人；D. mother妈妈。根据下文Lamb and mother，可知小羊是和它的妈妈走散了。故选D。
【18题详解】考查动词短语辨析。句意：小羊和它的妈妈走散了，所以我跳下拖拉机去照看它，而Don还坐在它的座位上。A. ask about询问；B. play with同……一起玩；C. tend to照看；D. run into撞上。上文说小羊和它的妈妈走散了，所以可以推测出我跳下拖拉机去照看它。故选C。
【19题详解】考查动词词义辨析。句意：小羊和它的妈妈重聚了，我转过身去看拖拉机，却看见它突然离开了我。A. freed使自由；B. switched转变；C. reunited重聚；D. examined检查。下文说我转过身去看拖拉机，因为小羊和它的妈妈重聚了，所以我才有心思去看我的拖拉机。故选C。
【20题详解】考查形容词词义辨析。句意：这太出乎意料了，因为我跳下车时已经拉上了手刹。A. unexpected出乎意料的；B. dangerous危险的；C. embarrassing使人尴尬的；D. difficult困难的。上文说我看见拖拉机突然离开了我，下文说我跳下车时已经拉上了手刹，所以这是让人出乎意料的事情。故选A。
【21题详解】考查副词词义辨析。句意：显然，Don以某种方式使车子动了起来。A. Fortunately幸运地；B. Generally通常；C. Immediately立即；D. Obviously显然。根据while Don stayed in his seat可知我跳下车，照顾小羊的时候，Don还坐在它的座位上。那么，很显然，是Don以某种方式使车子动了起来。故选D。
【22题详解】考查名词词义辨析。句意：当我看到拖拉机朝高速公路开去时，我的心都僵在胸口。A. crowd人群；B. motorway高速公路；C. field旷野；D. hill小山。根据near where a motorway cuts through my land.和having miraculously (奇迹般地) crossed the…road with fast-flowing traffic.可知拖拉机是朝高速公路开去。故选B。
【23题详解】考查动词短语辨析。句意：我拼命地跑，但没能追上。A. take off起飞； B. catch up追上； C. hold back阻止；D. get out出去。根据I ran desperately以及下文It crashed through a wooden fence and disappeared.可知我没有追上拖拉机。故选B。
【24题详解】考查动词词义辨析。句意：我的心都提到嗓子眼了，我抵达栅栏，仔细检查。A. fixed固定；B. noticed注意； C. reached抵达；D. closed关。根据and looked over可知我是抵达了栅栏。故选C。
【25题详解】考查动词词义辨析。句意：拖拉机正靠在路中间预留地带的防撞栏上，奇迹般地穿过了车流如水的繁忙道路。A. resting 倚靠；B. running跑； C. parking停车；D. turning转动。根据the crash barrier in the central reservation可知拖拉机是靠在路中间预留地带的防撞栏上。故选A。
【26题详解】考查动词词义辨析。句意：我看不见Don，但当我接近拖拉机时，它跳上了马路，显然没有受伤，冲回我身边。A. abandoned抛弃； B. approached接近;C. recognized意识到；D. repaired修理。下文说我的狗冲回我身边，所以我必定是接近了拖拉机。故选B。
【27题详解】考查形容词词义辨析。句意：我看不见Don，但当我接近拖拉机时，它跳上了马路，显然没有受伤，冲回我身边。A. unclean不洁的；B. uncertain不确定的；C. unhurt没有受伤的；D. unhappy不快乐的。根据下文no one got badly hurt可知我的狗没有受伤。故选C。
【28题详解】考查动词词义辨析。句意：警察来了，高速公路的运行又恢复了正常。A. arrived到达；B. replied回答；C. survived幸存；D. waited等待。下文说高速公路的运行又恢复了正常，可知是警察到达，处理了情况。故选A。
【29题详解】考查名词词义辨析。句意：我不能完全相信我的运气，结果没有人受重伤，但后果可能是可怕的。A. ability能力；B. dream梦想； C. luck运气；D. idea想法。我的狗驾驶着拖拉机上了车水马龙的高速路，结果却没有人受伤，所以我不相信我有这么好的运气。故选C。
【30题详解】考查名词词义辨析。句意：Don那天晚上被给予了一顿特别的晚餐——我不想让它认为我生它的气。A. meal一餐；B. test测验；C. job工作； D. lesson教训。根据下文I didn’t want him thinking I was angry with him.可知我不想让它认为我生它的气，所以我给它提供了一顿特别的晚餐。故选A