Pollutants coming from automobile operation have begun to cause many environmental problems. It has been calculated, for example, that 70% of the carbon monoxide, 45% of the nitrogen oxides, and 34% of the hydrocarbon (碳氢化合物) pollution in the United States can be traced directly to automobile exhausts (废气). In addition, rubber, motor oil and other materials accumulate on roadways and are washed into streams, with effects nearly as serious as those of untreated waste water.
In an effort to improve the situation, the U.S. government has made regulations on the use of the constituents (成分) of automobile exhaust gas that are known to cause air pollution. These constituents fall roughly into three types: hydrocarbons that pass through the engine unburned; carbon monoxide, also a product of incomplete burning; and nitrogen oxides which are formed when nitrogen and oxygen are in contact at high temperatures. Besides their own poisonous character, hydrocarbons and nitrogen oxides react in the presence of sunlight to form harmful smog. Carbon monoxide and hydrocarbons are rather easily controlled by the use of higher burning temperatures in engines. Unfortunately, the conditions that produce minimum emission of hydrocarbons tend to raise emission of nitrogen oxides. In a way this difficulty is solved by adding recycled exhaust gas to the fuel mixture, thus avoiding the oversupply of oxygen that favors formation of nitrogen oxides.
California, which has the most strict air-pollution laws in the United States, requires further special compounding of gas to control emissions, and several states have ordered that alcohol be mixed with gas, as this will reduce emissions of the carbon monoxide by 35 per cent and the hydrocarbons by 15 per cent.
67. The author uses figures in Paragraph 1 ________.
A. to show the consequence of automobile exhausts
B. to highlight the importance of environment protection
C. to reflect the rapid growth of automobile use
D. to criticize the low quality of cars
68. How are nitrogen oxides formed according to the text?
A. Nitrogen and oxygen are put together in great heat.
B. Carbon monoxide and oxygen are mixed together.
C. Hydrocarbons pass through the engine.
D. Nitrogen is burned incompletely.
69. Which of the following is NOT true according to the text?
A. Hydrocarbons have no poisonous character themselves.
B. Smog will form when hydrocarbons meet nitrogen oxides in the sunlight.
C. Carbon monoxide can be controlled in the engine.
D. The conditions that decease emission of hydrocarbons will increase emission of nitrogen oxides.
70. According to the text, alcohol is added to gas in order to ______.
A. increase awareness of environment protection
B. control air pollution
C. increase the fuel efficiency
D. replace gas gradually
— Jane and Maria look exactly the same to me.
— Oh, sometimes it’s hard for me to tell one twine from____.
A.another B.others C.the other D.the others
Shanghai Disneyland Park , _______ in 2015, will attract tourists over the world.
A. completed B. being completed
C. to be completed D. to have been completed
Tom Brennan was working in a Philadelphia office building when he noticed a black bag. The bag contained a book.
This chance discovery ended a 12-day search by the Library Company of Philadelphia for a historical treasure-a 120-page diary kept 190 years age by Deborah Logan, "a woman who knew everybody in her day, "James Green ,the librarian told the magazine American Libraries.
Most of the diary is a record of big events in Philadelphia ,It also includes a description of British soldiers burning Washington .D. C in the war of 1812.She describes President James Madison on horseback as "perfectly shaking with fear" during the troubled days. George Wash- ington, she writes, mistook her for the wife of a French man. and praised her excellent English .
The adventure of the lost book began September 4 when Cory Luxmoore arrived from Eng- land to deliver the diary of his ancestor(祖先)to the Library Company, which he and his wife considered to be the best home for the diary.
Green told American Libraries he had the diary in his possession" about five minutes" when Luxmoore took it back because he had promised to show it to one other person. On returning to his hotel after showing the precious book to Green, Luxmoore was shocked to realise that he had left it in the taxi.
Without any delay, Green began calling every taxi company in the city, with no luck," I've felt sick since then," Luxmoore told reporters.
According to Green. no one has yet learned how the diary came to the office building .
Tom Brennan received a reward(奖励)of 1,000,Philadelphia gained another treasure for its histo- ry, and Luxmoore told reporters, "It's wonderful news. I'm on high".
8.This article mainly tells about the story of _____
A. a lost diary B. Deborah Logan
C. Cory Luxmoore D. the Library Company
9.From the text,we learn that the diary is now owned by_____
A. Tom Brennan
B. an unknown person
C. a Philadelphia magazine
D. the Library Company of Philadelphia
10.Philadelphia is thought to be the best home for the diary because_____.
A. it was written in Philadelphia
B. it tells stories about Philadelphia
C. people in the city are interested in old things
D. the British and the Americans once fought in Philadelphia
11.Which of the following shows the right order of what happened to the diary?
a-Tom Brennan found the book in an office building.
b-The book was shown to James Green.
c-Cory Luxmoore arrived from England.
d-The book was left behind in a taxi.
A. a. b. c. d B. c. b. d. a
C. a. c. d. b D. c. a. b. d
12.What did Cory Luxmoore mean when he said "I'm on high"?
A. I'm rich B. I'm famous
C. I'm excited D. I'm lucky.
You are not ________ to unemployment benefit if you have never worked.
A. accustomed B. resigned C. entitled D. submitted

60. If you are a 22-year-old nurse , you can apply for the railcard without ________.
A. the signature of your director B $ 28
c. application form D. passport-sized photos
61. The 1/3 OFF discount may not apply for the railcard holders who travel at _______.
A. 11 pm on Sunday in August B. 7. am on Tuesday in February
C. 7 am on Monday in July D. 11 pm on Friday in March
62. Which of the following is True according to the leaflet ?
A. If you railcard doesn’t have your name signed , it will be used by someone else.
B. The benefits of a railcard are transferable to your friend of your age .
C. If you have no ticket but have boarded a train , you will still be eligible for a discounted ticket
D. If railcard holders wish to use the Eurostar network , they must pay the full fare.
The Internet of Things (IoT) (物联网) aims to get everything and everyone talking. Attaching sensors to “things”, such as cows, cars and refrigerator, and then assigning them unique IP addresses allow them to “talk” to the Internet. Of course, the IoT will involve much more than a handful of sensors. Networking company Cisco estimates that 50 billion Internet-connected devices and objects will be sending over data by 2020.
| Specific Benefits The IoT will allow people to track things and processes like never before. Airplane manufacturers will be able to continuously track the condition of airplane parts, allowing them to do preventive maintenance and avoid costly downtime. Consumers could install smart meters in their homes to monitor energy usage and observe energy price changes in real time. That would allow people to adjust their habits and use electrical appliances during lower-priced hours. |
| Some fears Some critics fear that the IoT could end up being a fashion that people lose interest in over time. Having Twitter feeds on refrigerator doors may sound cool at first, but the attraction could fade as quickly as the excitement over last year’s smartphone! Other critics are doubtful that companies making Internet-connected appliances will provide long-term software updates. If that happens, a refrigerator or washing machine that should last 10 years or more could last two or three due to software that’s outdated. |
| A Positive Example Early this year, owner of the Tesla Model S electric car received a recall notice alerting them to a charger plug needing to be fixed. Amazingly, owners of the Model S sat back while the company performed an “ over the air” wireless update. Customers confirmed the update by tapping on the car’s touch screen console to see that the Model S was running the latest software version. No trip to the dealer was required! Perhaps Tesla’s remote fix is a sign of things to come. Someday soon, people’s lives might become a lot more efficient and convenient thanks to the IoT. |
56. How do researchers get everything and everyone talking?
A. By establishing the IoT and launching a handful of sensors.
B. By connecting sensors with them and appointing them unique IP addresses.
C. By communicating with them all the time through the IoT.
D. By sending people to track them day and night and collect useful data.
57. What else do critics worry about the IoT besides its probably ending up being a fashion?
A. People will lose interest in it as quickly as the thrill over last year’s smartphone.
B. Refrigerators and washing machines will be replaced by other devices in a few years.
C. Whether related companies will provide long-term software updates or not.
D. The software provided by companies will be outdated easily and quickly.
58. According to the passage, when owners of the Telsa Model S electric received a recall notice, they __________.
A. just waited in the car while the maintenance is being done through wireless update.
B. were required to go to the nearest 4s store to make some adjustments or repairs.
C. could definitely depend on the IoT to send them the charger plug to be fixed.
D. had to confirm the update with the help of the equipment provided by the company.
__________at the door before you enter the office, or you’ll be considered impolite.
A. Knocking B. Knocked C. Knock D. To knock
As a result of the serious flood, two thirds of the buildings in the area .
A. needs repairing B. need repairing
C. need to repair D. needs to be repaired
--Cathy, could you make _____list of the great inventions in _______1950s?
--Sure .
A./; / B.a; / C.the; the D.a; the
Six-year-old Matthew Parker was in need of a kidney(肾)transplant, and his family looked all over the country for a suitable donor. Up to 80 people signed up to give up a living 41 for the first-grader. Coincidentally, the person 42 to donate a kidney to Matthew was his teacher,Lindesy Painter.
Matthew had been on the transplant 43 for a long time and developed antibodies(抗体)to most kidneys, it was 44 to find a match for him. The doctor had warned the family to he “ 45”and used the term .. needle in a haystack" several times・
When 46 were asked to be tested, Painter was the first one to sign up". 47 the teacher learned the result .she had to get several tests done. She was astonished when she got a 48 back saying she was a "perfect 49 ."
Painter didn't make the decision 50 . She knew that Matthew's kidneys were 51 ,and she empathized(同情)with anyone going through this. It was especially hard for her to 52 the condition affecting one of her two sons.
"I watch my healthy,active, loud, wild children running around," She said."Matthew 53 to live a normal,healthy,active life like my boys."
Matthew was so 54 to learn that his teacher would be donating a kidney to him that he 55 her. His mother was deeply 56 to Lindsey Painter, saying her son's donor was a " 57 "and "giving person" for doing this.
The operations for the kidney donation 58 in the following month. Matthew's mother said, "My son's new kidney means a special 59 between student and teacher that goes far 60 the classroom."
41. A. person B. organ C. animal D. plant
42. A. chosen B. supposed C. forced D. required
43. A. bed B. machine C. list D. team
44. A. difficult B. vital C. effortless D. impossible
45. A. optimistic B. sensitive C. fantastic D. realistic
46. A. competitors B. teachers C. volunteers D. Partners
47. A. While B. Once C. After D. Before
48. A. Mark B. call C. letter D. book
49. A. match B. candidate C. mother D. participant
50. A. wisely B. sensibly C. lightly D. willingly
51. A. failing B. hurting C. shrinking D. disappearing
52. A. control B. predict C. imagine D. accept
53. A. struggles B. manages C. regrets D. deserves
54. A. Puzzled B. excited C. satisfied D. worried
55. A. feared B. hugged C. missed D. ignored
56. A. sorry B. friendly C. polite D. grateful
57. A. reliable B. selfless C. passive D. cheerful
58. A. took place B. came about C. set off D. broke out
59. A. appreciation B. agreement C. bond D. distance
60. A. above B. from C. into D. beyond
is widely acknowledged that there is life, there is hope.
A. It; whether B. As; whether C. As; where D. It; where
I’m now applying to graduate school, ________ means someday I’ll return to a profession __________ people need to be nice to me in order to get________ they want.
A. that, which, what B. what, that, where
C. which, where, what D. which, what, that
假如你是李华,近日收到美国朋友Nancy 的邮件,说她下周六晚上7点在市图书馆报告厅做题为“美国风俗与文化”的讲座,邀请你来观摩。请给她写封回信,要点如下:
1.婉拒邀请; 2.陈述理由; 3.表达感谢。
注意:
1.词数100左右;
2.可以适当增加细节,以使行文连贯。
Dear Nancy,
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
House prices are usually much higher ________ there are subway stations around.
A. where B. unless C. while D. though
Michelle Obama is the first lady of American fashion, appearing on the cover of the March issue of Vogue.
Every first lady since Lou Hoover—except Bess Truman—has been appeared in the high-fashion magazine, but Mrs. Obama is only the second to appear on the cover.She appears wearing a silk dress by Jason Wu.
Vogue’s editor Andre Leon Tally recalled his interviews with Mrs. Obama ahead of US president Barack Obama’s swearing-in ceremony(就职典礼).“One of the best experiences of my life .” “She is so easily reached, natural and normal.” he said.
Mrs. Obama described her role as “Mom in chief” to 10-year-old Malia and 7-year-old Sasha.“I’m going to try to take them to school every morning, as much as I can,” she said.“But there’s also a measure of freedom.And clearly there will be time I won’t be able to drop them off at all.I like to appear in my kids’ school.I want to know the teachers; I want to know the other parents.”
Being in Vogue, though, the chat finally turns to clothes.“I’m not going to pretend that I don’t care about it,” she said.“But I also have to be very practical.Someone will always not like what you wear---people just have different tastes.”
Most cover models have their clothes chosen for them by Vogue, or at least editors work as advisers.Not this time.“She doesn’t need any help.She loves fashion and knows what works for her,” Talley said.“She has never had a talk with me about, ‘What do you think?’ or ‘How does this like?’ And I’m glad for that.”
1.From the underlined sentence in Paragraph 2 we know____.
A.every first lady has appeared on the cover of Vogue
B.only Bess Truman has appeared on the cover of Vogue
C.only two first ladies have appeared on the cover of Vogue
D.only Mrs. Obama has appeared on the cover of Vogue
2.From the forth paragraph we know Mrs. Obama ____.
A.loves their daughters very much B.likes to do housework very much
C.likes to do all for her husband D.has nothing to do after daughters go to school
3.From the last paragraph we know Mrs. Obama ____.
A.is a woman of kindness
B.has her own sense of beauty and idea
C.herself is a clothes designer and model
D.doesn’t like to be watched changing clothes
4.Which of the following is the best title?
A.First ladies of Vogue Cover Model
B.First Lady Michelle Obama Read Vogue Too
C.First Ladies Like to be Vogue Cover Model
D.First Lady Michelle Obama Is Vogue Cover Model
______in a white uniform, he looks more like a cook than a doctor.
A. Dressed B. To dress C. dressing D. having dressed
Only _________ as an interpreter _________ how important it was to practise speaking English.
A.when did I work…I realized B.when did I work…did I realize
C.when I work…did I realize D.when I worked…did I realize
Last year, I lost my best friend in high school. It seemed that everyone else’s life could just continue on in its 36 way, but mine couldn't. I wasn't sure how I was going to be able to face 37 and their gossip at school. I was forced to 38 my routine on Monday morning as usual. In the evening I returned home from school 39 completely defeated. All I wanted to do was 40 into bed and wallow(沉迷于)in my own self-pity. I pulled back the covers on my bed and 41 a pile of cards left by my dad. Each card included a(n) 42 that it was to be opened on a 43 night that week.
I made it through that week 44 my father. Each card 45 to say just what I needed to hear. Tuesday’s card said, “The past is painful to think about and the 46 is impossible to imagine. Don't try. Just take it one minute at a time.” On Wednesday my mood 47 when I read, “What you are feeling now is 48 and normal. It still feels very bad, but it is part of the healing 49 .” Friday’s card contained a poem he wrote. The last lines made me smile through my tears. “Whatever special 50 you face along life’s way, may you 51 that you will find the best in every day.” I was instructed to open the last card 52 the party I went to on Saturday night. In it he wisely reminded me to 53 . “The world isn't so bad after a good laugh. The more you laugh, the more you heal.” Each card was signed, “Love, Dad.”
My world once collapsed but I 54 the difficult breakup eventually. It owed to my dad , who made his 55 known when he couldn't be present.
16.A. pleasant B. strange C. funny D. normal
17.A. everyone B. anyone C. someone D. nobody
18.A. work out B. meet with C. deal with D.come across
19.A. making B. feeling C. regarding D. onsidering
20.A. crawl B. push C. jump D. draw
21.A. invented B. discovered C. created D. wrote
22.A. instruction B. explanation C. presentation D. information
23.A. regular B. flexible C. particular D. legal
24.A.in favor of B. regardless of C. in search of D. because of
25.A. seemed B. happened C. occurred D. intended
26.A.life B. future C. dream D. result
27.A. fell B. passed C. flied D. lifted
28.A. false B. honest C. natural D. innocent
29.A. content B. process C. cure D. progress
30.A.destruction B. competition C. challenges D. destination
31.A. trust B. guess C. predict D. succeed
32.A. before B. since C. after D. till
33.A. cry B. scream C. sing D. laugh
34.A.got through B. looked through C. broke through D.put through
35.A. schedule B. concept C. soul D. confidence
Anyone, once _______ positive for H7N9 flu virus, will receive free medical treatment from our government.
A. to be tested B. being tested C. tested D. to test