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随时随地学习
随时随地学习
1、These competitors are expected to push their own boundaries and______world levels.
A. watch out for B. look up to C. set sights on D. make up for
2、The problem with traffic crowdedness in the city put forward at the meeting, the government takes into consideration, is of great importance.
A. what B. where
C. which D. as
3、In the face of various economic uncertainties at home and abroad, the government has carried out ________ reforms to boost the economy.
A. bureaucratic B. systematic C.arbitrary D. ambiguous
4、— I wonder if you could go with me to the supermarket.
— Don’t disturb me. I ________ my daily report this morning and haven’t finished yet.
A. write B. was writing
C. have written D. have been writing
5、The sharing economy is expanding at such a rate ________ we can only imagine ________ it will comprise in the future.
A．as; that
B．that; what
C．as; which
D．that , that
6、One of the best ways to show confidence is to do it slowly, instead of rushing it. Nervous people rush things to their nervousness.
A. ignore B. mask
C. govern D. modify
7、Will you ______ me a favor, please? My luggage is too heavy.
A.do B.take C.give D.bring
8、He glanced through the guide book, ___________ only those pages __________.
A. reading, concerned B. to read, concerned
C. having read, concerning D. reading, concerning
9、As a new spokesman, he often thinks of how he can react more appropriately on such ____.
A.occasions B.occupations C.operations D.options
10、—What do you think of her suggestion?
— ______ it would be much more sensible to talk about it later.
A.Usually B.Generally C.Actually D.Exactly
11、---We want someone to design the new art museum for me.
---_____ the young fellow have a try?
A.Shall B.May C.Will D.Need
12、Bob likes the camera very much because it can be _______ to take pictures in cloudy or sunny conditions.
A.adapted B.admitted C.adopted D.adjusted
13、—It’s already 11 o’clock , and he ______ have been here half an hour ago.
—Maybe he got caught in the rain.
A. must B. ought to
C. may D. can
14、He is really nervous. He ______ back and forth all the night waiting for the results.
A. had walked B. has been walking
C. walked D. is walking
15、I headed for the barber’s ________ I was allowed to photograph the master at work.
A．when
B．where
C．who
D．which
16、There is a common belief among the students in our school ______ they should try their best to learn and reach the peak of their academic performances.
A. that B. which C. if D. whether
17、In our class there are 50 students，half _________ wear glasses．
A． in whom B． in them
C． of whom D． of them
18、It is said that Nigeria is ____ Great Britain.
A. three times larger of B. the size three times of
C. three times as the size of D. three times the size of
19、______we are short of funds at present, we will continue with the project, whose aim is to help people in the disaster area rebuild their homes.
A．While
B．Once
C．If
D．Unless
20、Export sales were up by 57% last year, so the company is confident of its further ________.
A．downfall
B．expansion
C．supervision
D．investigation
21、While new phones are advertised as “water resistant (防水)”, this doesn't mean they are waterproof, or totally immune to water. Water resistance just implies the device can handle some exposure to water before substantial damage occurs.
The water resistance of phones is rated by an “ingress (进入) protection” code, commonly called an IP rating. The rating includes two numbers. The first demonstrates protection against solids such as dust, while the second indicates resistance to liquids, specifically water. a phone that has a rating of IP68 has a solid object protection of 6 (full protection from dust, dirt and sand) and a liquid protection of 8 (protected from immersion in water to a depth of more than one metre).
The popular iPhone 12 and Samsung Galaxy S21 phones both have a rating of IP68. However, regarding exposure to water, the iPhone 12 has a permissible immersion depth of a maximum of 6m for 30 minutes whereas the Galaxy 21's immersion limit is up to 1. 5m, also for 30 minutes.
While IP ratings indicate the water-resistant nature of phones, taking most phones for a swim will land you in deep trouble. The salt content in oceans and swimming pools can corrode (腐蚀) our device and cost you a heavy replacement.
Then how to fix a water-logged phone? Follow these steps: First, turn off the device immediately and don’t press any buttons. then wipe the phone dry with paper towels or a soft cloth and gently shake the device to remove water from the charging ports. Next, remove the SIM card and dry out the phone in front of a fan. Do not charge the phone until you are certain it's dry.
If the above steps don’t help and you're still stuck with a seemingly dead device, don't try opening the phone yourself. You're better off taking it to a professional.
【1】What can you infer from Para. 2?
A．The water resistance of phones is evaluated by an IP rating.
B．The rating is made up of several numbers.
C．The first IP rating number indicates resistance to liquids.
D．A phone with a rating of IP68 has a solid protection of 8.
【2】What does the underlined word in Para. 4 refer to?
A．Things are not made by people.
B．The way that things happen.
C．The way of an act of a person.
D．The basic qualities of a thing.
【3】What should we first do with a water-logged phone?
A．We should pick it up from the water.
B．We should ask a professional for help.
C．We should switch it off and don't use it.
D．We should wipe it dry with paper towels or a soft cloth.
【4】what is the passage mainly about?
A．It focuses on the meaning of IP rating.
B．It is mainly about the water resistance of a phone.
C．It is about the IP rating and solutions to a water-logged phone.
D．It mainly deals with the classification of water resistance phones.
22、阅读下列短文 ，从每题所给的四个选项 （A、B、C、和D）中 ，选出最佳选项。
Could your cellphone give you cancer? Whether it could or not, some people are worrying about the possibility that phones, power lines and wi-fi could be responsible for a range of illnesses, from rashes to brain tumors.
Some say there is evidence to support the growing anxieties. David Carpenter, a professor of environmental health sciences at the university at Albany, in New York, thinks there’s a greater than 95 percent chance that power lines can cause childhood leukemia (白血病). Also there’s a greater than 90 percent chance that cellphones can cause brain tumors. “It’s apparent now that there’s a real risk,” said Carpenter.
But others believe these concerns are unjustified. Dr Martha Linet, the head of radiation epidemiology(流行病学) at the US National Cancer Institute, has looked at the same research as Carpenter but has reached a different conclusion. “I don’t support warning labels for cellphones, ” said Linet. “We don’t have the evidence that there’s much danger.”
Studies so far suggest a weak connection between EMFs (电磁场) and illness — so weak that it might not exist at all. A multinational investigation of cellphones and brain cancer, in 13 countries outside the US, has been underway for several years. It’s funded in part by the European Union, in part by a cellphone industry group. The final report should come out later this year, but data so far don’t suggest a strong link between cellphone use and cancer risk.
【1】From the passage we can learn that some people are worried because ________.
A．they have evidence that the use of cellphones can lead to cancer
B．they make a fuss over cellphone use
C．some experts have given a warning
D．cellphones are responsible for brain tumors
【2】By saying “I don’t support warning labels for cellphones,” Dr Martha Linet has the idea that ________.
A．the worrying is unnecessary
B．cancer-warning labels should be on cellphones
C．there is a link between cellphones and cancer
D．cellphones have nothing to do with cancer
【3】Which of the following best describes the attitude of the author towards the debate?
A．Optimistic.
B．Objective.
C．Opposite.
D．Casual.
【4】What’s the best title of the passage?
A．Cellphones: is there a cancer link?
B．There is a link between cellphone and cancer
C．A research on the cellphone
D．The cellphone and radiation epidemiology
23、 This year marks exactly two centuries since the publication of Frankenstein by Mary Shelley. Even before the invention of the electric light bulb, the author produced a remarkable work of fiction that would foresee many ethical(道德的) questions to be raised by technologies yet to come. Today the rapid growth of artificial intelligence (AI) raises fundamental questions: “What is intelligence, identity, or consciousness? What makes human conscience(良知)？”
What is being called artificial general intelligence, machines that would imitate the way humans think, continues to evade(难倒) scientists. Yet humans remain fascinated by the idea of robots that would look, move, and respond like humans, similar to those recently on popular sci-fi TV series such as “West World” and “Humans”.
How people think is still far too complex to be understood, let alone reproduced, says David Eagleman, a Stanford University neuroscientist. “We are just in a situation where there are no good theories explaining what consciousness actually is and how you could ever build a machine to get there.”
But that doesn’t mean essential ethical issues involving AI aren’t at hand. The coming use of autonomous vehicles, for example, raises difficult ethical questions. Human drivers sometimes must make split-second decisions. Their reactions may be a complex combination of instant reflections, input from past driving experiences, and what their eyes and ears tell them in that moment. AI “vision” today is not nearly as complicated as that of humans. And to foresee every imaginable driving situation is a difficult programming problem.
Whenever decisions are based on masses of data, “you quickly get into a lot of ethical questions,” notes Tan Kiat How, chief executive of a Singapore-based agency that is helping the government develop a voluntary code for the ethical use of AI. Along with Singapore, other governments and mega-corporations are beginning to establish their own guidelines. Britain is setting up a data ethics center. India released its AI ethics strategy this spring.
Only when we can make sure that the thinking of intelligent machines reflects humanity’s highest values will they be useful servants and not Frankenstein’s out-of-control monster.
【1】Why did the author mention Mary Shelley’s novel Frankenstein at the beginning of the passage?
A.Because it has remained popular for as long as 200 years.
B.Because it fascinates AI scientists all over the world.
C.Because it has sparked serious ethical controversies.
D.Because it involves some concerns raised by AI today.
【2】In David Eagleman’s opinion, our current knowledge of consciousness ________
A.helps explain artificial intelligence. B.can be misleading to robot making.
C.inspires popular sci-fi TV series. D.is too limited for us to reproduce it.
【3】The solution to the ethical issues brought by autonomous vehicles ________
A.can hardly ever be found. B.is still beyond our power.
C.causes little public concern. D.has aroused much curiosity.
【4】Which of the following would be the best title for the text?
A.AI’s Future: In the Hands of Tech Giants
B.Frankenstein, the Novel Predicting the Age of AI
C.The Conscience of AI: Complex But Unavoidable
D.AI Shall Be Killers Once Out of Control
24、 PM2.5 refers to fine particles (2.5 micrometres or smaller in diameter ), which are produced by combustion (氧化），including motor vehicles , power plants , forest fires, and some industrial processes .
The WHO tracks air quality ( how much PM 2.5 is in the air ) at 1622 locations in 92 countries -- but all are urban areas , while Pakistan , Egypt and Mongolia are among the most polluted countries according to the report , this only refers to pollution in its cities . Air quality in the Karakoram mountain range or the Gobi Desert will, of course , be fresh .Similarly ,Russia appears to be among the worst performing countries -- but its ranking is based only on air quality in Moscow . Of the 92 countries to feature , Australia has the least polluted urban areas , followed by Brunei and New Zealand. Estonia is Europe’s top performing nation ,followed by Finland and Iceland .The UK just misses out on the top 20, coming 21st. .
London’s annual PM2.5 mean is 12μg/m3. That puts it below the WHO target and behind a lot of world capitals. Of those countries for which the WHO had data ,Madrid , Oslo , Dublin, Montevideo, Helsinki, Ottawa , Washington DC and Canberra perform better than London .Top of the table are Stockholm and Tallinn, with an annual mean of 5μg/m3, followed by Edinburgh ,with 6. London exceeds Paris and Berlin , however ( both 16), and is the same as Lisbon (also 12).
Stockholm was the first city to be crowned European Green Capital in 2010---and it clearly hasn’t rested on its great honors . Since taking the accolade (荣誉），the Swedish capital has continued to keep on with eco-initiatives and has successfully decreased carbon emissions by 25 per cent since the Nineties. The city aims to be fossil-fuel free by 2050 , a target it hopes to achieve by improving public transport ,decreasing waste and increasing biodiversity, among other things . The city also has a strong culture of cycling , which has kept many residents out of cars .
【1】What is the WHO air quality report probably about ?
A.PM2.5 in the air.
B.Quantity of polluted air.
C.PM2.5 in the dust.
D.Quantity of combustion air.
【2】Which country is the least polluted for the urban areas of 92 surveyed countries ?
A.Russia B.Australia
C.Finland D.New Zealand
【3】What can we conclude from Stockholm was crowned European Green Capital ?
A.The trees are the most in Stockholm.
B.There is no air pollution in Stockholm.
C.PM2.5 in Stockholm is the lowest in the world.
D.Eco-environment in Stockholm is better protected .
【4】What does the passage mainly talk about?
A.The definition of PM2.5.
B.The findings of air quality study.
C.The importance of protecting nature.
D.The WHO air quality report in 92 countries.
25、It was a bitter, cold craning in evening Virginia years ago. An old man was waiting for a ride across the river. The wait seemed endless. His body became stiff in the cold wind.
He heard the faint, steady ________ of approaching hooves (马蹄) coming along the frozen path. ________, he watched as several horse men ________ the bend. He let the first one pass by, then another and another. Finally, the last rider neared the spot where the old man sat like a snow ________. As this one drew near, the old man________the rider's eyes and said, "Sir, would you mind giving an old man a ________ to the other side?" There appear to be no passage way by foot."
Reining his horse, the rider replied, "Sure. Hop aboard." Seeing the old man was unable to________ his half-frowned body from the ground, the horseman dismounted and helped the old man onto the horse. The horse took the old man not just across the river, but to his ________.
As they neared the cottage, the horseman' ________caused him to inquire," Sir, I notice that you let several other riders ________without making an effort to secure a ride. Then I came up and you ________asked me for a ride. I'm curious. What if I had ________and left you there?"
The old man ________himself slowly down from the horse, looked the rider straight in the eyes, and replied, "I've been around here for some time. I________I know people pretty good. The old–timer continued. I looked into the eyes of the other riders and immediately saw there was no________for my situation. It would have been________even to ask them for a ride. But when I looked into your eyes, kindness and compassion were ________. I knew, then and there, that your gentle spirit would welcome the opportunity to give me ________ in my time of need."Those heartwarming comments ________the horseman deeply.
"I'm most grateful for what you have said." He told the old man ."May I never get too________ in my own affairs that I fail to respond to the needs of others with kindness and compassion ."
With that, Thomas Jefferson turned his around and made his way back.
【1】
A．rhythm
B．rhyme
C．voice
D．singing
【2】
A．Excitedly
B．Anxiously
C．Angrily
D．Desperately
【3】
A．cut
B．rounded
C．traveled
D．repaired
【4】
A．hall
B．wall
C．statue
D．pile
【5】
A．hit
B．attracted
C．cleaned
D．caught
【6】
A．rest
B．ride
C．hand
D．way
【7】
A．raise
B．build
C．expose
D．set
【8】
A．office
B．town
C．car
D．destination
【9】
A．curiosity
B．determination
C．courage
D．confidence
【10】
A．pass by
B．pass away
C．turn around
D．slow down
【11】
A．suddenly
B．occasionally
C．slowly
D．immediately
【12】
A．refused
B．flown
C．escaped
D．rehabbed
【13】
A．put
B．lowered
C．laid
D．supported
【14】
A．admit
B．imagine
C．think
D．hope
【15】
A．warmth
B．kindness
C．sympathy
D．consideration
【16】
A．useless
B．worthless
C．uninteresting
D．disappointing
【17】
A．hidden
B．evident
C．great
D．strong
【18】
A．money
B．clothes
C．assistance
D．horse
【19】
A．influenced
B．spoilt
C．encouraged
D．touched
【20】
A．lazy
B．tired
C．busy
D．proud
26、假定你是李华， 你校每年都有一次读书节，你想邀请在本市工作的英国朋友大卫参加今年的读书节，请你就此写一封邀请信，主要内容包括：
1. 起始时间和地点；
2. 活动：免费赠书和讲座。
3. 目的：鼓励学生。
注意：1．词数100左右；
2．可以适当增加细节，以使行文连贯；
3．开头和结语以为你写好，不计入总词数。
Dear David,
I’d like to invite you to join the annual Reading Festival of our school next Sunday.
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
______________________________________________________________
Yours,
Li Hua
邮箱： 