D

Alibaba Cloud and the Hangzhou city government announced the launch of ET City Brain 2.0, a cloud—powered and Al-driven urban traffic-management system that aims to increase the city’s efficiency.

After over two years of testing in Alibaba’s home base, ET City Brain has become the new infrastructure (基础设施) for Hangzhou, with a total coverage of 420 square kilometers in area, including over 1,300 traffic lights. Over 200 traffic officers are connected via mobile phones, enabling them to receive real-time alerts on any traffic-related emergencies.

In version 2.0, the system will optimize the city’s firefighting abilities by providing key information to firefighters, such as water pressure, the number and position of fire hydrants (消防栓) in a given area, the location of gas pipes and other details they need to know. The information is instant, making the entire firefighting process faster, safer and more accurate.

City Brain gives meaning to data. By using AI and advanced algorithms (计算程序), City Brain is able to analyze a large amount of data and turn them into useful information in real-time speed.

As a result of City Brain’s ability to predict traffic flow, detect accidents and provide instant feedback, Hangzhou has dropped from 5th to the 57th on the list of China’s most congested cities. Hangzhou is probably the only city that can tell you how many cars are on the street at any given time.

In the case of medical emergencies, City Brain is able to change traffic lights, so emergency vehicles like ambulances and fire trucks can head to the scene without interruption, accelerating their arrival time by 49%.

Dr. Wang Jian, the head of Alibaba’s Technology Steering Committee who invented the term “City Brain”, said the system is designed to empower a city to act quickly and directly. It is more than just about traffic management. It’s really about how to make city more livable at a time of shrinking natural resources around the globe. “It is a matter of sustainability, while using as little natural resources as possible,” Wang said, “This is just the beginning.” 12. What benefit will ET City Brain bring? A. Lower crime rates. C. Less traffic congestion.

B. Efficient government. D. Improved medical care.

13. Which of the following functions of the city Brain is NOT mentioned in the text?

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A. Predicting traffic flow. C. Changing traffic lights.

B. Giving quick feedback. D. Handling traffic accidents.

14. Which of the following best explains “optimize” in paragraph 3? A. Better.

B. Practise.

C. Operate.

D. Emphasize.

15. What can we conclude from the last paragraph? A. ET City Brain 2.0 is a fully developed version. B. Alibaba targets environmentally-friendly development. C. The government is devoted to improving the system. D. The system can solve the problem of lack of resources.

第二节 （共5小题;每小题2分，满分10分）

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。

Food is so much a part of daily life that people often take eating for granted. 16 Now is a good time for you to think carefully about this question: What kinds of needs does food meet?

17 Food supplies the energy needed for day-to-day activities. Eating the right foods each day helps your body perform important functions.

Physical needs are not the only ones people satisfy by eating every day. People often eat even when they are not hungry. Some people eat to comfort themselves whenever they are upset or nervous. 18

Food serves social needs as well as physical and emotional ones. People often combine eating with the company of friends and family because both experiences are pleasurable. In some families, mealtime is the only time of day that the whole family can be together. 19 Many social occasions are associated with specific foods---birthday cakes, Thanksgiving turkeys, or Fourth of July cookouts. 20 A. Food also plays an important role in keeping social traditions. B. Food has many purposes.

C. They are not even aware of their own eating habit.

D. These traditions provide links between food and social activities. E. Like other living things, people need energy to live.

F. No matter what your age, a strong body can protect you from diseases. G. Others eat to remove boredom.

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第二部分 语言知识运用（共三节，满分50分）

第一节 完形填空（共20小题;每小题1.5分，满分30分）

阅读下面短文，从各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。

I fell in love with Yosemite National Park the first time I saw it, when I was 13. My parents took us there for camping. On the way out, I asked them to wait while I ran up to E1 Capitan, a ___21___ rock of 3,300 feet straight up. I touched that giant rock and knew ___22___ I wanted to climb it. That has been my life’s passion (钟爱) ever since--- ___23___ the rocks and mountains of Yosemite. I’ve long made Yosemite my ___24___.

About 15 years ago I started seeing a lot of ___25___, like toilet paper, beer cans, and empty boxes, around the area. It’s ___26___ me why visitors started respecting the place ___27___ and treated such a beautiful home-like place this way.

I tried ___28___ trash(垃圾)myself, but the job was too big. I would ___29___an hour or two on the job, only to find the area trashed all over again weeks later. Finally, I got so ___30__ it that I decided something had to change.

As a rock-climbing guide, I knew ___31___about organizing any big event. But in 2004, together with some climbers, I set a date for a ___32___. On that day, more than 300 people ___33___. Over three days we collected about 6,000 pounds of trash. It was amazing how much we were able to ___34___. I couldn’t believe the ___35___ we made ---the park looked clean!

Each year volunteers come for the cleanup from everywhere. In 2007 alone, 2,945 people picked up 42,330 pounds of trash and ___36___ 132 miles of roadway.

I often hear people ___37___ about their surroundings. If you are one of them, I would say the only way to change things is by ___38___ rather than complaining. We need to teach by ___39___. You can’t blame others ___40___ you start with yourself. 21．A．distant

B．loose

C．narrow C．gradually

D．huge D．recently

22．A．immediately B．finally 23．A．imagining 24．A．garden 25．A．material 26．A．beyond 27．A．more

B．painting B．home B．resources B．against B．most

C．describing D．climbing C．lab C．waste C．over C．least

D．palace D．goods D．within D．less

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28．A．throwing away D．digging out 29．A．kill

B．spend

B．picking up C．breaking down

C．wait D．save

30．A．satisfied with D．used to 31．A．something 32．A．party

B．anything B．cleanup

B．delighted in C．tired of

C．everything D．nothing C．picnic

D．concert

D．called back

33．A．dropped out B．showed up 34．A．demand 35．A．plan 36．A．crossed 37．A．complain 38．A．doing 39．A．method 40．A．although

B．receive B．visit B．measured B．talk B．thinking

C．looked around C．achieve C．contact C．covered C．argue

D．overcome D．difference D．designed D．quarrel

C．questioning D．watching

D．research D．when

B．explanation C．example B．if

C．unless

第二节 单项选择 （共10小题；每小题1分，满分10分）

41. Is this the reason______ at the meeting for his carelessness in his work? A. he explained explained

42. Astronomers have discovered that three planets have sizes and temperatures similar to ______ of Earth. A. them

B. these

C. those

D. ones

B. how he explained C. what he explained D. why he

43. The chairman asked me to ____ the report, because he didn’t want to speak for too long at this meeting.

A. cut off B. cut away C. cut out

D. cut down

44. The girl the teachers considered ____was caught ______ in the exam, which surprised us very much.

A. to be the best; to cheat C. being the best; cheating

B. to be the best; cheating D. as the best student; to cheat

45. We believe you have been devoted to naturally of great necessity. A. that; being

B. all that; be C. that all; are

D. what; is

46. ________ the meeting himself gave them a great deal of encouragement. A. The president will attend

B. The president to attend

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