1、单元检测：Unit 3阅读理解AFor years scientists have been worried about the effects of air pollution on the earths natural conditions. Some believe the air inside many houses may be more dangerous than the air outside. It may be one hundred times worse.Indoor air pollution can cause a person to feel tired,to s
2、uffer eye pain, headache and other problems. Some pollutants(污染物质) can cause breathing disorders,diseases of blood and even cancer. Most scientists agree that every modern house has some kind of indoor pollution.People have paid more attention to the problem now. It is said that when builders began
3、making houses and offices,they did not waste energy. To do this they built buildings that limited the flow of air between inside and outside. They also began using man-made building materials. These materials are now known to let out harmful gases.As the problem became more serious,scientists began
4、searching for a way to deal with it. They discovered a natural pollution control system for building green plants. Scientists do not really know how plants control air pollution. They believe that a plants leaves absorb(吸收；吸引 ) or take in the pollutants. In exchange the plant lets out oxygen through
5、 its leaves and small organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square meters of space. Studies of different plants show that each absorbs different chemicals. So the most effective(有效的) way to clean th
6、e air is to use different kinds of plants. Having green plants inside your house can make it prettier and more healthy place.1.Generally speaking,indoor air pollution may be more harmful than that outside because _.A. indoor air pollution can often make people seriously illB. man-made building mater
7、ials give off dangerous gasesC. there may be more harmful gases outside the buildingsD. the flow of air indoors is limited,which is very harmful2.Some kind of indoor pollution can be found in _.A. every modern house B. every old houseC. all kinds of houses D. all kinds of offices3.The indoor air pol
8、lution is caused by _.A. the limit of the flow of air between inside and outsideB. the building way that the builders want to save energyC. the building things that are made of man-made materialsD. the man-made building materials and the limit of air-flow4.The reason why we should use different kind
9、s of plants to clean the air is that _.A. plants can let out all kinds of pollutants indoorsB. plants may take in more oxygen which people needC. plants can absorb some kinds of harmful indoor chemicalsD. plants can make our houses prettier and more healthyBMetro Pocket GuideMetrorail(地铁)Each passen
10、ger needs a farecard to enter and go out. Up to two children under five may travel free with a paying customer.Farecard machine are in every station, Bring small bills because there are no change machines in the station and farecard machine only provide up to $ 5 in change.Get one of unlimited Metro
11、rail rides with a One Day Pass. Buy it from a farecard machine in Metro stations. Use it after 9:30 a.m. until closing on weekdays, and all day on weekends and holidays.Hours of ServiceOpen: 5 a.m. Mon-Fri 7a.m. SatSun.Close midnight SunThur. 3. a.m. Fri Sat. nightsLast train times vary. To avoid mi
12、ssing the last train, please check the last train time posted in the station.MetrobusWhen paying with exact change, the fare is $ 1.35. When paying with a SmartTrip card the fare is $1.25Fares for the Senior /disabled customersSenior citizens 65 and older and disabled customers may ride for half the
13、 regular fare. On Metrorail and Metrobus, use a senior/disabled farecard or SmartTrip card. For more information about buying senior/disabled farecards, farecard or smartrip card and passes, please visit MetroOpenD or call 202-637-7000 and 202-637-8000.Senior citizens and disabled customers can get
14、free guide on how to use proper Metrobus and Metrorail services by calling 202-962-1100Travel tips. Avoid riding during weekday rush periods before 9:30 a.m. and between 4 and 6 p.m. If you lose something on a bus or train or in a station, please call Lost this is a great evening out. Charlotte Ston
15、e will perform songs from her new best-selling CD, with James Pickering on the piano. The menu is Italian, with excellent meat and fresh fish, pizzas and pasta (面食). Book early to get a table. Our bar is open all day, and serves cocktails, coffee, beer, and white wine.9.Who can help you if you want
16、to have your music produced?A. Jules Skye. B. Gee Whizz. C. Charlotte Stone. D. James Pickering.10.At which place can people of different ages enjoy a good laugh?A. The Cyclops Theatre. B. Kaleidoscope.C. Victoria Stage. D. Pizza World.11.What do we know about Simons Workshop?A. It requires membersh
17、ip status. B. It lasts three hours each time.C. It is run by a comedy club. D. It is held every Wednesday.DTobacco is the second major cause of death in the world. It is responsible for the death of one in ten adults worldwide (about 5 million deaths each year). If current smoking patterns continue,
18、 it will cause some 10 million deaths each year by 2020. Half the people that smoke today, which is about 650 million people, will eventually be killed by tobacco.Tobacco is the fourth most common risk factor for disease worldwide. The economic costs of tobacco use are equally devastating (破坏性的). In
19、 addition to the high public health costs of treating tobacco-caused diseases, tobacco kills people at the height of their productivity, depriving (剥夺) families of breadwinners and nations of a healthy workforce. Tobacco users are also less productive while they are alive due to increased sickness.
20、A 1994 report estimated that the use of tobacco resulted in an annual global net loss of 200 thousand million US dollars, a third of this loss being in developing countries.Tobacco and poverty are closely linked. Many studies have shown that in the poorest households in some low-income countries as
21、much as 10% of total household expenditure is on tobacco. This means that these families have less money to spend on basic items such as food, education and health care. It contributes to a higher illiteracy rate, since money that could have been used for education is spent on tobacco instead. 12.Ac
22、cording to the passage, tobacco affects a family in the following aspects EXCEPT _.A. relationship B. education C. health D. economy13.The text uses a lot of figures to _.A. show we shouldnt smoke too much B. tell people exactly the numberC. warn people of the harm of smokingD. indicate the writer h
23、ad a careful investigation14.The underlined word “illiteracy” in the last paragraph means _.A. great intelligence B. good education C. bad behaviors D. inability to read or write15.What is the best title of the passage?A. Tobacco Should Be Banned.B. Why Is Tobacco a Major Threat to Public Health.C.
24、Tobacco and Poverty Go Hand in Hand.D. Tobacco May Cause Death.II.七选五 根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Writing A Letter To Your Future SelfJust imagine writing a letter to your future self 5 years from now, then opening it at that exact moment to see how much of it has come true. 16_As you
25、 read the letter in the future, you can assess how many things agree with your expectations in the past. 17_ Often times, the goals we set and our goal achievement process are affected by a lot of changes along the way. The letter lets you recognize how your current idea differs from the past.In add
26、ition to that, at the very moment you are writing the letter, your thoughts are stored right there in those words. When you open the letter in the future, you as your future self gets to compare how you used to be in the past with how you are now. 18_. Its very interesting to do so.Take out a pen an
27、d paper right now and start writing your letter to your future self. Set a time period to write to. 19_ Then start writing. Think about the type of person you will be, your place in life, what you will have realized then, and so on.20_ Put it in a safe space where no one can find it. When you open t
28、his sometime in the near future, you might gain additional insights(了解) about yourself and your journey in the past few years.A. And you can think about why thats the case.B. It is a useful tool to be used in goal achievement.C. Imagine how you will be like during that time period.D. If you havent,
29、join me in writing a letter to yourself.E. This lets you see how much things have changed since then.F. At the end of the letter, write the date to open it on the cover.G. It wasnt until we moved into our new house that I found it again.III.完形填空阅读下面短文，从短文后各题所给四个选项（A、B、C 和 D）中，选出可以填入空白处的最佳选项，并在答题卡上将该
30、项涂黑。The measure of a mans character is what he would do if he knew he would never be found out. Thomas Macaulay Some thirty years ago, I was studying in a public school in New York. One day, Mrs Nanette ONeil gave an arithmetic(算术) 21_ to our class. When the papers were 22_ she discovered that twelv
31、e boys had made the same mistakes throughout the test.There is really nothing new about 23 _ in the exams. Perhaps that was why Mrs ONeill _24_ even say a word about it. She only asked the twelve boys to 25_ after class. I was one of the twelve. Mrs ONeill asked 26 _ questions, and she didnt 27_ us
32、either. Macaulay, she wrote on the blackboard the 28_ words by Thomas Macaulay. She then ordered us to 29_ these words into our exercise-books one hundred times.I dont 30_ about the other eleven boys. Speaking for myself I can say: it was the most important single 31_ of my life. Thirty years after
33、being introduced to Macaulays words, they 32_ seem to me the best yard-stick(准绳), because they give us a 33 _ to measure ourselves rather than others. 34_ of us are asked to make 35_ decisions about nations going to war or armies going to battle. But all of us are called 36 _ daily to make a great m
34、any personal decisions. 37_ the wallet, found in the street, be put into a pocket or turned over to the policeman? Should the 38_ change received at the store be forgotten or 39_? Nobody will know except 40_. But you have to live with yourself, and it is always better to live with someone you respec
35、t.21 A. test B. problem C. paper D. lesson22 A. examined B. completed C. marked D. answered23 A. lying B. cheating C. guessing D. discussing24A. didnt B. did C. would D. wouldnt25A. come B. leave C. remain D. apologize26A. no B. certain C. many D. more27A. excuse B. reject C. help D. scold28A. above
36、 B. common C. following D. unusual29A. repeat B. get C. put D. copy 30A. worry B. know C. hear D. talk31A. chance B. incident C. lesson D. memory32A. even B. still C. always D. almost33A. way B. sentence C. choice D. reason34A. All B. Few C. Some D. None35A. quick B. wise C. great D. personal36A. ou
37、t B. for C. up D. upon37A. Should B. Must C. Would D. Need38A. extra B. small C. some D. necessary39A. paid B. remembered C. shared D. returned40A. me B. you C. us D. thenIV. 阅读下面材料，在空白处填人适当的内容或括号内单词的正确形式。On a 41 （freeze）cold day, Mrs Smiths dog was hungry, but there was not any meat 42 (leave) in t
38、he house.43 (consider) there was no better way, Mrs Smith took a piece of paper, and wrote the 44 (follow) words: “Give my dog half a pound of meat.” Then she asked her dog to take it to the butchers. When the butcher recognized that it was really the ladys handwriting, he did as he 45 (ask) to. The
39、 dog was very happy, and ate the meat up immediately. The next day, the dog came again exactly at midday. And as 46 (usually), it brought a piece of paper in the mouth. This time the butcher did not take a look at the paper, and just gave the dog its meat, for he had regarded the dog 47 one of his c
40、ustomers. One day later, to the butchers more surprise, it came at six oclock and brought48 third piece of paper. Though 49(surprise), the butcher gave him 50 he wanted. But what he didnt know was that there were not any words on the paper!V. 短文改错John, a heavy smoker, once feel bad-tempered. His han
41、ds started shaking and he coughed a lot, so he turned to his doctor for help. “Quit smoking,” the doctor advised. Find the advice sensible from several points, such as money, healthy, and cleanliness, John decided to give up smoking. However, for several hour without a cigarette, John was nervous an
42、d had a difficulty in concentrating, inability to sleep, what made him more hungry for a cigarette. He said to himself, “One more, I will quit it tomorrow. Tomorrow will be a suitable day of me to break away from the bad habit” Then he picked up a cigarette which made her relaxed. Again and again Jo
43、hn made up his mind to do it “tomorrow”. Today John is still addicted for smoking.答案I. 1-4 BADC 5-8 DBBA 9-11ABD 12-15ACDB16-20 BAECFII. 21-30ACBAC ADADB 31-40 CBABC BAADBIII. 41freezing 42left 43Considering 44following45was asked 46usual 47as 48a 49surprised 50WhatIV【小题 1】feel 改为 felt。 【小题 2】Find 改为 Finding【小题 3】healthy 改为 health 【小题 4】hour 改为 hours【小题 5】have a difficulty 的 a去掉 【小题 6】what 改为 which【小题 7】(加 and)I will quit it tomorrow. 【小题 8】of 改为 for 【小题 9】her 改为 him 【小题 10】for 改为 to
