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随时随地学习
随时随地学习
1、With the clock fixed on the wall, students in our city are accustomed ________ the watches in the exams.
A．not to wear
B．to not wear
C．to not wearing
D．not to wearing
2、The further evidence came to light after a careful investigation voices calling for help were from the tenth floor.
A. which B. that
C. whose D. where
3、Children like to _____ what they have but others don’t have, which makes them proud.
A. cheer up B. give up
C. show off D. put off
4、Lincoln gave them a new vision of ________ the United States of America should be, ________ on the ideals ________ down by its Founding Fathers 87 years before.
A．which; based; setting
B．where; basing; set
C．what; based; set
D．where; basing; setting
5、The classroom is big enough _________, but we’ll have to move if we have more students.
A. for the moment B. on the moment
C. in a moment D. for a moment
6、Emily is working hard to be sure not to fail on her first ______.
A. plan B. purpose C. attempt D. desire
7、________ wise man is one good at learning, especially ________ that is good at learning from failures.
A．A; one
B．The; one
C．A; the one
D．The; the one
8、I prefer to play outdoors rather than ________ computer games in the room.
A．play
B．to play
C．playing
D．plays
9、_________both sides accept the agreement will a lasting peace appear in this region.
A.Unless B.As long as C.If only D.Only if
10、I like going out to eat with Roger, but he goes to hotels that ________.
A．as far as I know
B．helps yourself at home
C．side with
D．cost an arm and a leg
11、Some Western countries have long ________ that Iran aims to create a nuclear bomb, but Teheran said the materials were only for civil use.
A.suspected B.doubted C.wondered D.convinced
12、The company lost $7 million this quarter ________ a profit of $6.2 million a year earlier.
A. in contrast to B. with regard to
C. in favor of D. at the sacrifice of
13、It remains ______ how many senior citizens will actually benefit from this new plan .
A．to see
B．being seen
C．seen
D．to be seen
14、Mr. Johns ______ a better plan than the one now under consideration.
A. put up with B. put forward
C. put away D. put off
15、--- Do you know our town at all?
---No, this ________ the first time I ________ here.
A．was; has come
B．is; come
C．is; had come
D．is; have come
16、When Mary arrived she found all her children ______ for nearly two hours.
A．have gone to sleep
B．fell asleep
C．was falling asleep
D．had been asleep
17、There are ________ books in our library.
A．hundreds of
B．hundred of
C．five hundreds
D．five hundred of
18、---Students should devote most of their time to studying rather than playing computer games.
---________. No pains, no gains.
A. Extremely B. Actually C. Obviously D. Exactly
19、The incident ________ a long train of problems and difficulties.
A. left out B. left behind C. left off D. left alone
20、The hot weather is ________ the water shortage.
A．to blame for
B．blamed for
C．to blame on
D．blamed on
21、He gives his son some money for the _____of his books.
A.pressure B.purchase C.promote D.practice
22、He, who had been granted (准许) an ________ of his contract with the club for another two years, was over the moon.
A．vision
B．extension
C．assumption
D．consumption
23、Mary worked here as a ________ secretary and ended up ________ a full-time job with the company.
A. admirable; getting B. temporary; getting
C. previous; to get D. cautious; to get
24、See the sign over there, which________ keep off the grass.
A.reads B.is read C.reading D.has read
25、More and more cancer patients _________ in hospital owing to polluted environment and people’s bad lifestyles.
A. treated B. have treated
C. have been treated D. had been treated
26、There are billions of people on this planet, and many of us love to eat meat. Can the demand be filled in a sustainable and affordable way? A bunch of businessmen are not only optimistic but are working to make this happen sooner than you may think.
The environmental effects caused by meat consumption — waste, animal treatment, health problems and even the greenhouse gas effects that are potentially caused by methane gas produced by cows — have given rise to a number of startups (新兴公司) looking to develop meats in different ways.
For example, San Francisco-based Memphis Meats is developing cell-based meats in its labs without requiring any animals. Israel’s Future Meat Technologies is doing the same by producing fat and muscle cells that are being tested by chefs in Jerusalem. All of these companies use special processes to harvest cells from animals and grow them in a lab.
But don’t worry if you’re not a meat lover, Startups such as Jet Eat, which is also based in Israel, are working on food products grown in labs that are plant-based and replicate (复制) meats using natural elements while still keeping flavor, consistency and the “overall sensory experience”, according to a report on NoCamels, Jet Eat, which was founded in early 2018, aims to 3D-print their lab-grown products by 2020.
As you can imagine, there are plenty of barriers facing the industry. Educating the public is a big one. Another controversial issue is the labeling of the products. Recently both the USDA and the Food and Drug Administration (FDA) announced that they will begin jointly controlling the new “cell-based meat” category.
Many of us have concerns about the challenges facing future generations as our global population increases and the earth’s natural resources decreases. The good news is that there are plenty of businessmen around the world — like those producing lab-grown meats — who are working to solve some of these problems and make a little money in the process. Nothing wrong with that.
【1】Why do some companies begin to develop new kinds of meats?
A．To analyse the causes of air pollution.
B．To stress the importance of protecting wild animals.
C．To make people less interested in eating meat and more healthy.
D．To meet people’s demand for meat in environmentally friendly ways.
【2】What’s special about the lab-grown meats of Jet Eat?
A．They cost less.
B．They are plant-based.
C．They are more delicious.
D．They are available on the market now.
【3】Which of the following is a barrier lab-grown meat industries must deal with?
A．How to let people accept the meat.
B．How to give the meat an elegant name.
C．How to produce the meat in large amounts.
D．How to reduce the cost of making the meat.
【4】Which of the following is not the environmental effects caused by meat consumption?
A．The loss of natural resources.
B．Animal treatment
C．Health problems
D．The greenhouse gas
27、A study made by University of Sussex found that men and women who frequently used several types of technology at the same time had less grey matter in a key part of the brain . The researchers said : “ Simultaneously（同时）, using mobile phones , laptops and other media devices could change the structure of our brains . ” Worryingly , the part of the brain that shrinks is involved in processing emotion . The finding has linked multi-tasking with a shortened attention span , depression , anxiety and lower grades at school .
The researchers began by asking 75 healthy men and women how often they divided their attention between different types of technology . This could mean sending a text message while listening to music and checking email , or speaking on the phone while watching TV and surfing the web . The volunteers were then given brain scans which showed they had less grey matter in a region called the anterior cingulated cortex ( ACC ) . The findings held even when differences in personality were taken into account . The study , published in the journal PLOS ONE , is the first to make a link between multi-tasking and the structure of the brain .
Researcher KepKeeLoh said : “ Media multi-tasking is become more popular in our lives today and there is growing concern about its impacts on our cognition and social-emotional well-being . ” He added that more researches are needed to prove that multi-tasking shrinks the brain . This is because it is also possible that people with less grey matter in the ACC are more likely to use lots of devices simultaneously .
Scientists have previously described brain structure can be altered on prolonged exposure to new environments and experience . Other studies have shown that training – such as learning magic or taxi drivers learning the map of London – can increase grey matter densities（密度）in certain parts .
【1】What can we learn about grey matter from the passage ?
A. Watching the TV for a long time can reduce grey matter .
B. The decrease of grey matter in the ACC affects emotion .
C. People with less grey matter prefer to use media devices .
D. Taxi drivers in London have more grey matter than others .
【2】We can know about the study by University of Sussex that __________ .
A. the volunteers in it have lower grades at school
B. it can change the structure of grey matter in our brain
C. it is the first to link multi-tasking with the structure of the brain
D. the findings of it have been supported by some other researches
【3】 How does the researcher , KepKeeLoh , feel about the study ?
A. Surprised . B. Cautious .
C. Disappointed . D. Confused .
【4】What’s the purpose of the passage ?
A. To inform people of the findings of a research .
B. To stress the importance of grey matter in our brain .
C. To advise people to do more training about our brain .
D. To warn people of the possible danger of media devices .
28、 Autism (自闭症) could be caused by a lack of protein (蛋白质) in the brain, new research suggests.
A third of cases are believed to be down to a lack of nSR100, which is important for normal brain development. Experts say this can cause mistakes in the wiring (布线) of the brain and possibly lead to autism.
Researchers from the University of Toronto lowered levels of the protein, which controls the building of cells (细胞), in mice. They found that a reduction in nSR100 by just half was enough to trigger typical autistic (自闭症的) behaviors. These include avoiding social activities and increased fear to noise.
This is the second study of the protein by the Canadian researchers. The first showed that nSR100 is reduced in the brains of autistic people.
Lead researcher of the study, Dr Sabine Cordes, said: “We previously reported a connection between nSR100 protein levels and autism. But this time we show that reduced levels of this protein could really be the reason — that’s a big deal. Just by reducing the nSR100 levels by 50 per cent, we observe clear signs of autistic behavior.”
Autism — which is known best for changing social behavior — is a mental disorder affecting more than one per cent of the population. While its origins are genetic (基因的), the real causes are known in only a very small number of cases.
【1】What does the underlined “nSR100” in Paragraph 2 most probably mean?
A．A normal brain development.
B．A kind of protein.
C．The brain of an expert.
D．The wiring of the brain.
【2】Which of the people might have autism according to the third paragraph?
A．Peter who is fond of sports with friends in the open air.
B．Paul who is noisy and interested in school activities.
C．Tom who is afraid of taking part in a birthday party.
D．Jim who is easily angry and unwilling to work hard at school.
【3】Where does Dr Sabine Cordes probably come from?
A．China.
B．The USA.
C．Germany.
D．Canada.
【4】What can be inferred from the last paragraph?
A．Autism can best change social behavior in a mental order.
B．Researchers have only understood a little about autism so far.
C．More than one percent of the population affect autism.
D．Researchers believe autism has nothing to do with gene.
29、 Self-driving vehicles (车辆) will rely on cameras, sensors and artificial intelligence (AI) to recognize and respond to road and traffic conditions, but sensing is the most effective for objects and movement near the vehicle. Not everything important in a car's surroundings will be caught by the vehicle's camera. Another vehicle approaching at high speed on a collision (碰撞) track might not be visible until it's too late. This is why vehicle-to-vehicle communication is undergoing rapid development. Our research shows that cars will need to be able to chat and cooperate on the road, although the technical challenges are huge.
Applications of vehicle-to-vehicle communication range from vehicles driving together in a row, to safety messages about nearby emergency vehicles. Vehicles could alert each other to avoid collisions or share notice about passers-by and bicycles.
From as far as several hundred metres away, vehicles could exchange messages with one another or receive information from the Roadside Unit (RSU) about nearby incidents or dangerous road conditions through 4G network. A high level of AI seems to be required for such vehicles, not only to self-drive from A to B, but also to react intelligently to messages received. Vehicles will need to plan, reason, strategize(制定策略) and adapt according to the information received in real time and to carry out cooperative behaviour. For example, a group of self-driving vehicles might avoid a route together because of potential risks, or a vehicle could decide to drop someone off earlier due to messages received, like a foreseen crowd ahead.
Further applications of vehicle-to-vehicle communication are still being researched, including how to perform cooperative behaviour.
【1】What is the first paragraph mainly about?
A．The reasons for the accidents by self-driving vehicles.
B．The research about applications of self-driving vehicles.
C．The importance of artificial intelligence of selfdriving vehicles.
D．The reasons for developing communication between self-driving vehicles.
【2】What does the underlined word "alert" in Paragraph 2 mean?
A．Alarm.
B．Judge.
C．Ignore.
D．Control.
【3】What can we learn about the Roadside Unit (RSU) ?
A．It can improve bad road conditions.
B．It recognizes the vehicles on the road.
C．It takes control of the passing vehicles.
D．It serves as an efficient information station.
【4】What is the main idea of the text?
A．Importance of high-level AI.
B．Vehicle-to-vehicle communication.
C．Different kinds of vehicle communication.
D．Ways to improve our communication with vehicles.
30、It was the first night of a tiring seven-day 250km race across the Gobi Desert a year ago. Mr. Leonard _________ a little dog going around his camp trying to _________ herself.
“Cute, but I’m not giving you any,” Leonard thought. Like all _________, he had packed just enough for the whole _________. He’d been running competitively for three years, and he had a _________ to win.
The next day, at the starting line, the dog _________ him again. He waved her away, _________ she might be stepped on by the runners. _________, the dog followed him all the way until the day’s race _________. That night the dog snuggled (依偎) up to Leonard and even managed to get food from him. By then, he was determined to __________ her Gobi.
The pair went on to finish the seven-day race, with Gobi __________ a distance of 125km on her own, and winning Leonard over, enough for him to make a __________ — he would take her home to Edinburgh. “Seeing Gobi on the race __________ my attitude to things. It made me think more about stopping and helping her, __________ just focusing on winning,” said Leonard, who finished second. “It also made my running more __________, giving me a lot of pleasure.”
【1】
A．treated
B．found
C．adopted
D．recognized
【2】
A．feed
B．water
C．play
D．accommodate
【3】
A．hikers
B．climbers
C．explorers
D．competitors
【4】
A．plan
B．course
C．day
D．camp
【5】
A．desire
B．chance
C．right
D．tendency
【6】
A．bothered
B．stopped
C．approached
D．removed
【7】
A．confused
B．shocked
C．ashamed
D．worried
【8】
A．However
B．Meanwhile
C．Therefore
D．Otherwise
【9】
A．came over
B．got down
C．ended
D．started
【10】
A．give
B．show
C．award
D．name
【11】
A．keeping
B．setting
C．covering
D．ranging
【12】
A．decision
B．choice
C．comment
D．difference
【13】
A．announced
B．gathered
C．challenged
D．changed
【14】
A．even though
B．more than
C．rather than
D．ahead of
【15】
A．impressive
B．enjoyable
C．important
D．typical
31、Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
In a society, such as the United States or Canada, which has many national, religious and cultural differences, people 【1】 value individualism--the differences among people. Teachers place a lot of importance on the 【2】 that make each student special. The educational systems in these countries show these values. Students do not memorize information. Instead, they work 【3】 and find answers by themselves.There is often discussion in the classroom. At an early age, students learn to form their own ideas and opinions.
In most Asia societies, on the contrary, the people have the same language, history and culture. Perhaps for this reason, the educational system in much of the Orient 【4】 society’s belief in group goals and purposes rather than individualism. Children in China, Japan and Korea often work together and help one another on assignments. In the classroom, the teaching 【5】 are often very formal. The teacher lectures, and the students listen. There is not much discussion. Instead, the students recite rules or information that have memorized.
There are advantages and disadvantages to both of these 【6】 of education. For example, one advantage to the system in Japan is that students there learn much more math and science than American students by the end of high school. They also study more hours each day and more days each year than North Americans do. The system is difficult, but it 【7】students for a society that values discipline and self-control. There is, however, a disadvantage. Memorization is an 【8】 learning method in Japanese schools, yet many students say that after an exam, they forget much of the information they have memorized.
The advantage of the educational system in North America, on the other hand, is that students learn to think for themselves. The system prepares them for a society that values 【9】 ideas. There is, however, a disadvantage. When students graduate from school, they haven’t 【10】 as many basic rules and facts as students in other countries have.
32、寒假就要来了，假如你是李华，打算发一封电子邮件给你的英国笔友Daymond，与他分享下你的寒假社会实践及学习安排。
要求：
1.词数100左右；
2.首尾句已写好。
Dear Daymond,
_________________________________________________________________________________________________________________________________________________________________________________
Yours
Li Hua
邮箱： 