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1、2019新人教版必修三寒假练习 Unit1第一课时一阅读理解Micro plastics are tiny bits of plastic often too small to be seen. Plastic doesnt decompose like natural materials. Instead, it just breaks into smaller and smaller pieces. No one knows exactly how much plastic is in the oceans. Since the sea is so large and so deep, i
2、t s hard to get a good idea of how much plastic it contains. But in recent years, scientists have made greater efforts to get a more accurate idea.Some studies have suggested that since 1950. about 17 million metric tons(公吨)of plastic have entered the Atlantic Ocean. Scientists believe that the plas
3、tic previously found on beaches and on the surface of the water is only about 1% of all the plastic in the oceans. Researchers from the United Kingdom (UK) want to find out where the other 99% was.For two months in 2016 the researchers took samples at 12 different locations in the Atlantic Ocean fro
4、m the UK to South America. They collect water samples from three different depths in the top 200 meters. By running the water through special fllters(过滤器),they were able to collect the micro plastics, which they could view and study with a microscope.Based on their measurments. the researchers learn
5、ed that just the top 200 meters of the Atlantic Ocean holds between 12 and 21 million metric tons of plastics. But the Atlantic Ocean is very deep, and the scientists only checked the top 200 meters. They say that if micro plastics are spread through the rest of the Atlantic like they were in the to
6、p 200 meters, thin there arc probably about 200 million metric tons of micro plastics in the Atlantic Ocean.Though the scientists only studied the Atlantic ocean the results suggest that there may be far more micro plastic in all oceans than we realized. The problems go far beyond ocean pollution. M
7、icro plastic particles have been found just in everywhere around the world from Antarctica to the bottom of the sea.Scientist predict that the amount of plastic entering our oceans is likely to triplet over the next 20 years. Having a good idea of how much plastic is already then might be a good fir
8、st step to fighting the problem.5. What docs the underlined word “decompose” in Paragraph 1 mean?A. turn up B. break down C. give offD. bring out6. What is the latest idea about the plastic in the seas?A. Previous data of plastic consists of only a very small part.B. There is only 17 million metric
9、ton of plastic on the earth.C. The amount of plastic in the seas is on the decrease in recent years.D. The amount of plastic in the seas is increasing by 1 % yearly.7. What is the authors attitude according to the text?A. Pessimistic. B. Confident. C. Objective. D. Conserved.8. What does the author
10、expect to take place?A. More pollutants will turn out in the future. B.Measures will be taken to deal with plastic.C. The oceans will be cleaned in the future. D. More people will be aware of plastic pollution.二七选五While it may seem like everyone surfs the web these days, there is fine line between c
11、asually checking your social media pages and having a full blown Internet addiction. If you fear that you may lose interest in other aspects of your life because you prefer to be on the Internet, you may be on your way to an Internet addiction._1_Admit you are at risk of an addiction.More and more p
12、eople in the world are becoming addicted to the Internet. You are not the only one with this problem; it is becoming more and more common and more and more well known._2_.Set aside limited time for computer use.Make sure not to turn it on too many times a week. If you have a laptop, make sure to put
13、 it somewhere that you can remember but not somewhere that you see every day. Try keeping the lid closed when you are not using it; _3_ If you have a desktop PC, try not to go near it or put something over it like a sheet.Call people instead of sending instant messages or texts.If you are free on we
14、ekends, call friends and ask them to go outside. This will distract you from the computer._4_Use an alarm clock or timer.Before using your computer, decide on a time limit such as 30 minutes. Set the clock or timer and make sure that you get off the computer when the time is up. Alternatively create
15、 a shutdown timer on your desktop. _5_.A. Make a small list of what you want to do within that time.B. When the computer is not looking at you you are less likely to use it.C. This can be programmed to shutdown your computer after the set timeD. Luckily, there are ways to avoid living your life in f
16、ront of the computer.E. This will stop you from using the Internet so often or going on to another page.F. If you have a problem on weekdays, phone your friends or ask for help in person.G. Do not be embarrassed; find others with the same problem and help each other beat it.三语法填空As you know, science
17、 plays _1_ very important role in our education. Do you want to keep up with the latest research and discoveries in science? There are many good websites _2_ you can check out the latest in the science world.One great site is Science News for Kids. This site reports science news _3_ (cover) a wide r
18、ange of subjects. The articles are intended _4_ younger readers,_5_ adults will find this site suitable for them as well. Another wonderful site, one that I check out every day, _6_ (call) Science Daily. The site is _7_ (constant) updated with news, often about exciting _8_ (finding) that change how
19、 we view the world.These sites post the latest stories and also keep all the past articles they _9_ (post) earlier. That way you can find just about anything that _10_ (be) related to the science fields your are interested in.第二课时.单句语法填空1.Festivals give us some (occasion) where we can relax and enjo
20、y life. 2.The national park has a large collection of wildlife, (range) from butterflies to elephants.(2017北京卷) 3.It seems beautiful that the tall buildings (reflect) in the lake around which there are many trees. 4.In ancient Egypt,the harvest festival (feature) a parade and a great feast with musi
21、c,dancing and sports. 5.I would be (gratefully) if you could tell me how to operate the machine. 6.I reflect how my days gone and think about the rest of the week.(2019全国卷) 7.How do you like this (decorate) of the room? 8.Do you know the (significant) of this plan to me? 9.It is (typically) of Jill
22、to come to school late. 10.We expressed our (grateful) to them in the letter. 11.The Western festival Halloween has its origins in old (belief) about the return of the spirits of dead people. 12.Festivals of all kinds have a wide range origins all around the world. 13.Looking at the picture (reflect
23、) in the mirror,the baby smiled. 14.Do you know what most festivals seem to have common? 15.As the small boat moved (gentle) along the river he was left speechless by the mountains being silently reflected in the water.(2020全国卷) .完成下列句子1.With a guide (show) us around the scenic spots,were sure to ha
24、ve a good time. 2.With several problems (remain) to be solved,we still need to hold another meeting as soon as possible. 3.With more and more forests (damage),some animals and plants are facing the danger of dying out. 4.With the exam (come) near,I felt very nervous. III选词填空 (用所给词组的适当形式填空)reflect on
25、/upon take advantage of range from.to fade away have.in common1.We should the forest to protect our environment. 2.With the development of society,some traditions may . 3.You will find these questions a lot if you observe them carefully. 4.Youd better the problem that more and more plastics are dama
26、ging our earth. 5.The shop sells a wide range of books,whose prices 2 yuan 100 yuan. IV.语法填空As we all know,festivals 1. (celebrate) all around the world and they have 2. wide range of origins,such as the seasons of the year,religions,famous 3. (figure),and important events.Of all the 4.(tradition) f
27、estivals,the harvest festival can be found in almost every culture.People celebrate 5.(show) that they are grateful for the years supply of food.Customs play a significant role in festivals,but sometimes they can change over time.With the 6.(develop) of modern society and the spread of new ideas,som
28、e traditions may fade 7. and others may be established.Festivals are becoming more and more commercial,with businesses 8. (take) advantage of the celebrations.Festivals reflect peoples wishes,beliefs,faiths and attitudes towards life.And if you study festivals 9. (careful),you may be surprised to fi
29、nd that different cultures actually have a lot 10. common after all. 第三课时一：单句语法填空1. China, which is a _ (develop) country now, will be advanced and powerful in 20 or 30 years. 2. Climbing mountains was _ (tire), so we all felt worn out. 3. There was terrible noise_ (follow) the sudden burst of light
30、. 4. The manager walked into the room to attend the meeting _ (hold)then. 5. Those _ (sit) on the bench at the end of the classroom are some students parents. 6. One of my hobbies is _ (play) table tennis. 7. I was fortunate to pick up a wallet_ (lie)on the ground on the way back home. 8. The boy_ (
31、ride) a bike before me is my son. 9. The news that they announced was so _ (surprise) that many couldnt believe it. 10.The firefighters dashed into the _ (burn) woods to save people trapped in it.11.Last night，there were millions of people _(watch) the opening ceremony live on TV.12.There is a note
32、pinned to the door _ (say) when the shop will open again.13. The building _ (build) over there is our library.二：补全句子1.The development of our aviation industry is _.我们的航空工业的发展是非常令人鼓舞的。2.What he says sounds _.他说的话听起来更有说服力。3.The story is _这个故事很感人。4.The result is very_，for we lost the game.结果很令人失望，因为我们输
33、掉了比赛。5.I dont think her joke is_.我认为她的笑话无趣。6. What I am tired of is _ a bus for a long time. 我厌烦的事情就是等公交车很长时间。.7. You should adapt to the _ situation. 你应该适应这种快速变化的局势。8. The old man _ looks energetic. 在公园里锻炼的老人看起来精力充沛。9. The stadium _ now will be the largest in our city. 现在正在设计的体育馆将是我们城市里最大的体育馆。10. T
34、he boys _ are my classmates. 聚集在校门口的那些男孩是我的同学。11. The furniture in a large shopping center comes in a variety of colors and shapes, _ black to white, and from round to square. 大型超市里的家具有各种颜色和形状, 从黑色到白色, 从圆形到方形。三：语法填空Valentines Day is the time of the year when couples show their love for each other by
35、 sending cards,flowers and chocolates. Its origins are 1 (clear) and hidden in the river of time. Nobody knows exactly 2 St. Valentine was, although some historians suggest he was 3 Roman killedin the third century AD by a Roman Emperor. It is said that the first 4 (record) Valentines card was sent
36、by the imprisoned Duke of Orleans in 1415. 5 is believed that he tried to find comfort from his imprisonment by writing love poems to his wife.Now, Valentines Day 6 (celebrate) in many countries around the world. However,the traditions often differ from place to place. In Japan,for example,it is nor
37、mal 7 the woman to send chocolates to the man,8 in Korea, April 14th is known as “Black Day” and is when the unfortunate men who receive nothing on Valentines Day gather to eat noodles and show sympathy for each other.Technological 9 (develop) have also played their parts 10 keeping Valentines Day p
38、opular in the 21st century. Valentines cards have been very popular in recent years.1._ 2._ 3._ 4._ 5._ 6._ 7._ 8._ 9._ 10._第四课时一、单词拼写1. Many people hold a b_ that the disease will be cured. 2. -People dont care enough about the polluted environment. -I think you are a_ right. 3. Tom has d_ his room
39、 with lanterns and some photos of sports stars. 4. The chairman of the autonomous region is kind and helpful, so we all r_ him. 5. We went to the party to celebrate his birthday and we also c_ him on his success. 二、选词填空dress up look forward to take place as if figure out represent in spite of reflec
40、t on out of respect go off set off show be 1. They talked _ they had been friends for a long time. 2. _ , the waitress asked him to sit by the window. 3. _ these difficulties, I believe practice makes perfect. 4. As we all know, the Olympic Games _ every four years. 5. The lights _ in several villag
41、es because of the horrible storm. 6. You dont have to get _ for this party to celebrate the carnival. 7. I hope in the years to come he will _ his decision. 8. We ought to _ at 7:00, when the road to the opening ceremony is empty. 9. The kids love her very much as if she _ their mother. 10. She beca
42、me the first woman _ a South Wales mining valley. 11. With the guide _ us around the scenic spots, we are sure to have a good time. 三、语法填空Dear Smith,1._(know) that you are interested in the Dragon Boat Festival by Chinese, I am 2. _(write) to introduce it to you.The festival 3._(fall) on the 5th day
43、 of the 5th lunar month is a traditional Chinese festival. As is known to us, in order to warn the king, Qu Yuan, sacrificing his life, jumped into the Miluo River. People admired him for his 4._(touch) behavior and set the day he died as a festival to show honor to him. On that day, we often eat ri
44、ce-dumpings and drink a special wine. Besides, what should be stressed is the dragon-boat racing, which is very 5._ (interest) and 6._(excite). People gather on both sides of the river to watch the competitors 7._(spare) no effort to make for the 8._(finish) line.The dragon Boat Festival is 9._(appr
45、oach). Would you like to join us? Looking forward to your 10._(come).Yours,Li Hua参考答案第一课时阅读理解 答案】5. B 6. A 7. C 8. B【解析】【分析】本文是一篇说明文。微塑料通常是小得看不见的塑料碎片。塑料不像天然材料那样会分解。相反，它只是分裂成越来越小的碎片。没有人知道海洋中究竟有多少塑料。由于海洋如此之大，如此之深，很难很好地了解它含有多少塑料。但近年来，科学家们作出了更大的努力来获得一个更准确的想法。【5题详解】词句猜测题。根据划线词后一句“. Instead, it just breaks into smaller and smaller pieces.( 相反，它只是分裂成越来越小的碎片。)”可知塑料