Mexico City sits on an inland plateau(高原) surrounded by volcanic peaks, which makes air quality a constant concern for people who live here.
In April, the country took a decisive step toward improving air quality by enacting(颁布) a temporary ban(禁令) on private and federal vehicles in the city. The rule forbids people from driving in the city one day each week and one Saturday each month. Electric vehicles, government service vehicles, public transport options and school buses are not included in the ban.
Mexico City isn’t the first urban centre to be involved in car-free living. But the ban is more than an awareness-raiser; it was enacted with the direct aim of solving air pollution. In March, the city sank into a deep brown haze of smog when pollution levels passed the 200 mark. The city ordered some 1.1m of the area’s 4.7m cars off the streets and also offered free bus and subway rides.
Mexico City’s temporary vehicle ban raises questions about the best ways to improve urban air quality. India, whose citizens breathe some of the world’s dirtiest air, has tried a variety of solutions. Earlier this year, the Indian government started a 4% sales tax on new-car purchases.
Beijing also has experience with cleaning the air. The city introduced alternate-day rules in advance of the 2008 Olympic Games, which produced good, if short-lived, results. The day after the vehicle-use restrictions (限制) were lifted, the blue faded back to gray. And then there is the London congestion(拥挤) charge, introduced in 2003. The charge has had a measurable effect on air quality.
For now, Mexico City—named by the United Nations as the most polluted city on the planet in 1992—can look forward to the start of the region’s rainy season, when daily showers will help to clean the air.
1.What makes the air quality of Mexico City a concern for citizens?
A. Its population.
B. Its location.
C. Its public transportation.
D. Its government action.
2.Which is true about the rule enacted in April in Mexico City?
A. It will come into effect forever.
B. Federal vehicles are not included in the ban.
C. The rule prevents people from driving on Saturdays each month.
D. It’s a decisive measure toward reducing air pollution.
3.What can we learn from the passage?
A. Two more places are mentioned which dealt with air pollution besides Mexico City.
B. The Indian government started a 47% sales tax on new-car purchases in advance of the 2008 Olympic Games.
C. The action Beijing took has got good results for a very long time.
D. As for Mexico City, rainy season can help to improve the air quality.
4.Which word has the closest meaning to the underlined word “lifted”?
A. removedB. raisedC. approvedD. clarified
数学奥赛暑假天天练南京大学出版社系列答案
南大教辅抢先起跑暑假衔接教程南京大学出版社系列答案科目：高中英语 来源：2017届黑龙江肇东市高三9月考英语试卷（解析版） 题型：阅读理解
Anyone who has experienced the joy of driving through a rainstorm with the sunroof (天窗) open understands how airflow around the moving vehicles can keep him dry despite the exposure. Now a similar principle is being employed to create an umbrella that protects people from the rain using nothing more than an invisible air force field.
Air Umbrella, developed by a Chinese company and recently funded by Kickstarter, uses forced air rather than fabric to create a protective canopy that keeps people from getting wet in the rain.
It’s a clever concept and designers have done a good job of answering several questions about the product. For instance, the sound generated by the device is minimal, especially when compared to the pitter-patter of the falling rain. It can create a protective canopy wide enough for two people to fit under and it performs well even in the heavy rain. The air shield (防护) can be cut through by high winds, but given that regular umbrellas typically fold over in similar windy conditions, the air umbrella is still an upgrade.
A few concerns do remain, however. For instance, the battery life is only about 15-30 minutes depending on the model, so you’ll still want to walk briskly to your next destination when it’s raining. Also, while the air shield might keep the rain away from you, it’s likely to splash all that blown-away water onto anyone else like a sprinkler (洒水车). So the device might draw the ire of anyone else walking with you, or any helpless bystanders.
There are currently three different types to choose from if you’re interested in investing. Air Umbrella-A is the lightest model, and is apparently designed specifically for females, according to the Chinese developers. It is about 12 inches in length and weighs a little over a pound, and it runs for 15 minutes per charge. Air Umbrella-B measures nearly 20 inches long and weighs 1.7 pounds, and lasts 30 minutes per charge. Finally, Air Umbrella-C also lasts 30 minutes, but is scalable between 20 and 32 inches depending on your needs.
1.Why does the author mention a special driving experience in the first paragraph?
A. To introduce the topic of the passage.
B. To explain the need for an umbrella.
C. To share a feeling with the readers.
D. To prove a theory to the readers.
2. The Air Umbrella fails to work when ______.
A. there is little rain B. there is no wind
C. it rains heavily D. the wind is strong
3.How does the author present concerns about the Air Umbrella?
A. By giving figures.
B. By giving examples.
C. By making experiments.
D. By making comparisons.
4.The underlined word “ire” in the 4th paragraph probably means ______.
A. attention B. doubt
C. curiosity D. anger
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科目：高中英语 来源：2016-2017学年山东济南一中高二上期中考试英语卷（解析版） 题型：单项填空
The invention of the Internet has ________ a lot to the development of the world.
A. turned B. contributed
C. constructed D. exposed
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科目：高中英语 来源：2017届海南省高三上第三次月考英语卷（解析版） 题型：完形填空
People from every corner flooded into the streets that Christmas Eve. "Frosty the Snowman," and "Jingle Bells" in stores; on the pavements, the street singers performed happily. Everyone was by someone else, delighted and cheerful. I was alone.
As one of 8 kids of a Brazilian family, brought up in America's crowded apartment, I'd spent several years searching for aloneness. Now, , at 27, a college student after the with my girlfriend, every cell inside me wanted to be alone, not at Christmas. My family had to Brazil and my friends were with their own lives. Dusk was approaching, and the fact that I had to return to my home made me sad. Lights from windows blinked (闪烁), and I hoped someone would from one of those homes to invite me inside with a Christmas tree decorated with shiny fake snow and presents.
At a market, I felt more when people were buying lots of goods, which the gifts we received as children in my mind. I missed my family and wanted to cry for wanting to be alone and for having achieved it.
Outside the church, a manger (小耶稣) had been set . I stood with others watching the scene, some of them themselves, praying. As I walked home, I realized that leaving Brazil was still a painful experience as I struggled with I had become in 15 years in America. I'd mourned (悲叹) the , but for the first time, I recognized what I’d gained. I was independent, and healthy. My life was still ahead, full of .
Sometimes the best gift is the one that you give yourself. That Christmas, I gave myself for what I'd obtained up to now and promise to go forward. It is the best gift I've ever got, the one that I most .
1.A. served B. held C. shared D. played
2.A. employed B. attended C. supported D. accompanied
3.A. eventually B. usually C. extremely D. really
4.A. date B. sympathy C. breakup D. concern
5.A. but B. so C. and D. or
6.A. moved B. returned C. slipped D. came
7.A. bored B. pleased C. satisfied D. occupied
8.A. empty B. warm C. shabby D. cozy
9.A. hang out B. go away C. turn up D. break in
10.A. donated B. wrapped C. discounted D. dealt
11.A. nervous B. excited C. upset D. tired
12.A. called up B. called for C. called on D. called in
13.A. aside B. about C. down D. up
14.A. crossing B. hugging C. bowing D. bending
15. A. that B. what C. how D. which
16. A. worries B. cases C. limits D. losses
17.A. educated B. lonely C. shy D. wealthy
18.A. sadness B. possibility C. hardship D. sight
19.A. prize B. defeat C. credit D. surprise
20.A. save B. admit C. select D. value
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科目：高中英语 来源：2016-2017学年湖北襄阳市四校高二上期中联考英语试卷（解析版） 题型：短文改错
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（╲）划掉。
修改：在错的词下面画一横线，并在该词下面写出修改后的词。
注意：1、每处错误及其修改均仅限一词；
2、只允许修改10处，多者（从第11处起）不计分。
20-year-old swimmer Fu Yuanhui placed third in the semi-finals of the 100m backstroke of the Rio Olympics. While interviewing, she said she was so satisfied with her performance that she expects nothing in the finals.
Her lovely memes(表情包) and directly remarks amazed audience worldwide, which aroused various comment. Some people think she is too content for her achievements. Others argue the process herself is more important than the result.
In my opinion, as long as you have tried your best, which doesn’t matter whether you can win or not. Just as the old saying goes this, “Happiness lies in contentment.” Only in this way we relax ourselves and achieve more progresses.
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科目：高中英语 来源：2016-2017年河北石家庄辛集中学高一上第二次段考英语卷（解析版） 题型：完形填空
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入1-3词，并将答案填写在答题卡标号为6l-70的相应位置上。
Halloween is 1.____________ strange holiday. It 2.______________ (start) several centuries ago in Europe. It began as "Hallow Evening", 3._________________ means "holy night". People believed that all the spirits of dead people were active 4.________________ the night of October 31st. So people would play all sorts of tricks on each other.
Black is one of the traditional Halloween 5.________________ (color), probably because Halloween festivals and traditions took place at night. Pumpkins are a symbol of Halloween, so orange has become 6._________________ traditional Halloween color. 7._____________ (make) lanterns out of pumpkins is a Halloween custom.
Halloween is great fun for children. They dress up as ghosts (鬼)or witches (女巫). Small children go "Trick-or-Treating". They wear costumes, knock on doors, 8.______________ shout, " Trick or Treat!" People almost always choose 9._______________ (give) them candy as a treat, instead of choosing to receive a trick from the children. Adults sometimes "trick or treat" their friends, too. 10.___________________(usual), the "treat" is a glass of wine or some small gifts.
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科目：高中英语 来源：2016-2017学年黑龙江双鸭山一中高一上期中考试英语卷（解析版） 题型：完成句子
单句语法填空
1.Do you know _________ man standing there ?.
2.John ________ (play) basketball with his brothers at weekends.
3.The radio says it will be a bit ___________ (cold) tomorrow.
4.These results are _____________ (encourage), but you still have a long way to go.
5.The ____________ (abandon) house was pulled down to make way for a new road.
6.It is the third time Jack _________ (fail) his driving test.
7.Kids are not allowed ___________ (run) in the street.
8.The _________ (careful) you are, the better you learn.
9.Mary is always the first one ____________ (come) in our class.
10.He told a lie to avoid ___________ (punish) by the teacher
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科目：高中英语 来源：2016-2017学年湖南浏阳一中高二上期中考试英语卷（解析版） 题型：阅读理解
My parents were in a huge argument, and I was really upset about it. I didn't know who I should talk with about how I was feeling. So I asked Mom to allow me to stay the night at my best friend's house. Though I knew I wouldn't tell her about my parents’ situation, I was looking forward to getting out of the house. I was in the middle of packing up my things when suddenly the power went out in the neighborhood. Mom came to tell me that I should stay with my grandpa until the power came back on.
I was really disappointed because I felt that we did not have much to talk about. But I knew he would be frightened alone in the dark. I went to his room and told him that I'd stay with him until the power was restored. He was quite happy and said, “Great opportunity.”
“What is it?” I asked.
“To talk, you and I” he said. “To hold a private little meeting about what we’re going to do with your mom and dad, and what we're going to do with ourselves now that we're in the situation we are in.”
“But we can't do anything about it. Grandpa,” I said, surprised that here was someone with whom I could share my feelings and someone who was in the same “boat” as I was.
And that's how the most unbelievable friendship between my grandfather and me started. Sitting in the dark, we talked about our feelings and fears of life — from how fast things change to how they sometimes don't change fast enough. That night, because the power went out, I found a new friend, with whom I could safely talk about all my fears and pains, whatever they may be. Suddenly, the lights all came back on. “Well,” he said, “I guess that means you'll want to go now. I really like our talk. I hope the power will go out every few nights!”
1.I wished to get out of the house because __________.
A. I was eager to have fun with my best friend
B. I found nobody to share my feelings with
C. I wanted to escape from the dark house
D. I planned to tell my friend about my trouble
2. Grandpa was happy to see me because __________.
A. he could discuss the problem with me
B. he had not seen me for a long lime
C. he was afraid of darkness
D. he felt quite lonely
3.What can be inferred from the passage?
A. The grandchild was eager to leave.
B. They would have more chats.
C. The lights would go out again.
D. It would no longer be dark.
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科目：高中英语 来源：2017届广西桂林市高三11月考英语试卷（解析版） 题型：七选五
根据短文内容，从短文后的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。
In less than ten months, you will go to different universities and lead a new life. In your new life, making new friends is a must. Then, how can you make new friends quickly?
Everybody knows friends come and go. You have friends for every time and season of your life from youth to old age. Sometimes people change their goal in life. Perhaps you’ve made a change yourself, such as a new job or moved to a new location. ___1.____ Making new friends quickly is possible once you go about it the right way.
In order to make friends, you must first be a friend. Consider joining groups and associations that are of interest to you. ____2.___ Go out of your way to be friendly, and you’ll make new friends quickly.
___3.__ If you need help, there are millions of books on the subject of good manners.Treat people with politeness and you will see people start to flock to you because of your pleasant personality.
Become good at something. You can do well in a sport, an instrument,writing, languages or whatever else you enjoy. ___4.___ This makes you interesting and gets people to be attracted to you. It’s not about doing this for the sake of attracting attention, but having a skill at something is another way to make new friends quickly.
Share contact information with people you meet who seem interesting. Then invite them to do things with you. ____5.____ Showing interest in people by actually inviting them to do things will help you create friends quickly.
A. It could be as simple as drinking coffee together.
B. Always practice good manners.
C. You don’t have to be an expert, but at least good enough to help others with your skill.
D. Get to know your friends’ friends.
E. This may also change your circle of friends.
F. You are likely to find others who share things in common with you.
G. It is not necessary to be skillful in something.
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