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随时随地学习
随时随地学习
1、She asked the young man to be brief and _______ as she had little time to spare.
A．at best
B．in place
C．to the point
D．on the spot
2、One of the best ways for people to keep fit is to______ healthy eating habits.
A.grow B.develop C.increase D.raise
3、In my driving lesson, a traffic rule that impressed me most is that in no time ________ when the traffic lights turn red.
A. all vehicles should stop B. should all vehicles stop
C. should stop all vehicles D. should stop all vehicles
4、The boy played the piano so ________ that all the audience stood up and clapped their hands.
A.good B.well C.better D.best
5、Oh! The flower can’t be saved. If the flower had been watered，it now.
A.wouldn’t be dying B.is dead
C.had been dead D.will not die
6、---Haven’t seen you for ages! Where have you been?
---I went to Ningxia and ________ there for one year, teaching as a volunteer.
A. has stayed B. had stayed
C. stayed D. am staying
7、—Credit cards are________ useful when traveling.
—True. They save us the trouble of taking too much cash.
A．particularly
B．partly
C．exactly
D．gradually
8、“______, we believe the overall policy stand to support a two-way opening of the Chinese capital marked and it will continue this year.” he added.
A. As some bottlenecks are difficult to be broken
B. As some bottlenecks are difficult to break
C. Difficult as some bottlenecks are to be broken
D. Difficult as some bottlenecks are to break
9、—Are you content with the result of the exam?
—Not a little. I can’t have ______ one.
A.a worse B.a better C.the worse D.the better
10、________ the doors were closed, and ________ all the lights were off, the boy opened the door to his bedroom.
A.Having checked; that B.Having checked; /
C.Checking; where D.To check; that
11、________ at the cafeteria before, Tina didn't want to eat there again.
A. Having eaten B. To eat C. Eat D. Eating
12、John was dismissed last week because of his________ attitude towards his job.
A．competitive
B．casual
C．classical
D．comprehensive
13、----Hurry! There’s no time to waste.
----OK. But I’m afraid that ______ I work around the clock, I can’t catch up with those straight A students.
A. even if B. as C. until D. as though
14、Our high-tech zone has__________guidelines for sustainable development in the next five years.
A.fallen for B.got over C.broken down D.laid out
15、About sixty students in my class will take the coming exam, at least _________ can pass and be admitted by key universities.
A.two thirds B.two thirds of them
C.two thirds of which D.two thirds of whom
16、China’s efforts to give timely treatment to those infected with the virus are being____by the rest of the world.
A.applauded B.clarified C.postponed D.transferred
17、As teachers we shouldn’t accept the argument given by some people _______ standardized tests restrict educators too much and take the joy out of teaching.
A. where B. what
C. how D. that
18、When are you going to return my novel? Don’t worry. You ____ have your book soon, I promise.
A．shall
B．should
C．may
D．must
19、There are a great number of attractions in Tianjin, ______ I like the Ancient Cultural Street best.
A．which
B．where
C．among them
D．among which
20、The machine has been used for man years. It’s no wonder that it doesn’t work well __________.
A. regularly B. constantly
C. frequently D. occasionally
21、Researchers from Texas A＆M University have developed a new bioremediation technology(生物整治技术)using plant-based material and fungi(真菌) that could clean up per-and polyfluoroalkyl substances.
Per-and polyfluoroalkyl substance, also called “forever chemicals” or PFAS, are found in soil, water, and even human and animal blood and may be harmful to humans and other species. They are found just about everywhere, from food wrappers to clothing. These chemicals may affect the immune system and may cause liver damage. Extremely high exposures to PFAS may also be linked to cancer.
“PFAS do not degrade easily in the environment and are poisonous even in a very low concentration,” said Susie Dai, associate professor from Texas A&M. “They must be removed and destroyed to prevent human exposure and negative impacts on the ecosystem. PFAS are so stable and they can occur in water in a very low concentration and you have to concentrate them and then destroy them.”
The only way to actually get rid of these “forever chemicals” is by burning them, which is a long and expensive process. But Texas A&M researchers have found a new way to use a plant-based material that adsorbs the pollutants. As explained by ScienceDirect, adsorption is “The use of solids for removing substances from either gas or liquid.” The adsorbent material is then consumed by microbial fungi. The team recently published their findings for the process framework, which they call RAPIMER, in Nature.
“The plant’s cell wall material serves as a framework to adsorb the PFAS,” Dai explained. “Then this material and the adsorbed chemical serve as food for a microbial fungus. Then it’s gone, and you don’t have the disposal problem.”
This sustainable PFAS clean-up system could be mass-produced for commercial use, leading to a better way to remove these chemical pollutants from the environment. It could also come in handy as the U.S. Environmental Protection Agency considers creating PFAS thresholds(阈值) to its water quality standards.
【1】What is mainly talked about in paragraph 2?
A．PFAS’s existing forms.
B．PFAS’s doubtful origins.
C．PFAS’s potential dangers.
D．PFAS’s wide applications.
【2】What did Susie Dai say about PFAS?
A．They are unstable.
B．They degrade easily in the environment.
C．They survive longer in water than in the air.
D．They are poisonous even in a low concentration.
【3】What happens after the plant-based material adsorbs the pollutants?
A．The material gets eaten.
B．The material becomes solid.
C．The material falls into small pieces.
D．The material goes on to adsorb fungi.
【4】What is the author’s attitude towards the plant-based material?
A．Indifferent.
B．Worried.
C．Positive.
D．Reserved.
22、
CHICAGO, Illinois -- Students shouted, hugged and cried tears of joy recently as they played with certified therapy dogs (获得认证的治疗犬) at Lane Tech College Prep, an activity designed as a break from the demands of preparing for final exams.
This is the second year the dogs and volunteers have been brought into the school from Chicago-based Canine Therapy Corps to provide much-needed relief for stressed or anxious kids.
“It's stressful around finals time,” Assistant Principal Sarah Hanly said, adding that this week students are turning in final projects, reviewing and studying for next week's exams.
It seemed to do the trick. Shouts and cheers went up from a group of students as they met Waffles, an 85-pound dog, and rushed to put their hands on his fur.
Junior Sophie Cohen sat next to Waffles, petting him and chatting with her friends and Waffles' owner. She said she had just been talking to her friend about how stressed out she was over finals. “Just the idea of having a dog in school is good because the school environment is just about stress,” she said. “And then here is this dog. You get a break.”
Monica Synecky, Waffles' owner and a volunteer with Canine Therapy Corps, said she often takes her dog to visit high school students around finals time. “This age group benefits really well from just the presence of Waffles or other certified therapy dogs,” she said.
Therapy dogs must be properly trained and pass a test before they become certified, said Ann Davidson, operations manager at Canine Therapy Corps.
“Taking breaks is one of several tools students can use to manage stress or anxiety,” said Jacqueline Rhew, a registered clinical professional consultant. Rhew also said, “Trained dogs help students put academic stress into perspective.” When students don't properly manage stress, it can turn into troubling anxiety.
Juniors Jennifer Giraldo and Anastasia Ramirez hugged and laughed as they took turns with their classmates, giving Luna, a Portuguese water dog, commands to sit, lie down and roll over. “I was stressing all third and fourth periods, and then people were talking about the dogs,” said Ramirez, who decided to wait in line with Giraldo to see the dogs herself. “Now I feel better.”
【1】How did the students feel when they met the dogs?
A．Calm.
B．Sad.
C．Excited
D．Tired
【2】What do we know about Monica Synecky?
A．She suffered great pressure in school.
B．She was glad that Waffles could help.
C．She was a registered clinical consultant.
D．She founded Canine Therapy Corps.
【3】What might Rhew agree on?
A．Indoor cats can greatly reduce students' stress.
B．Students' stress is gradually disappearing.
C．Students can handle stress with different tools.
D．Dogs help students shoulder responsibility.
【4】What's the main idea of the passage?
A．Therapy dogs ease students' stress before exams.
B．Therapy dogs improve students' mental health.
C．Therapy dogs prepare students for challenges.
D．Therapy dogs work as volunteers in school.
23、 Many people say that looking back is meaningless because it can neither change the past nor bring it back to life, but I disagree as I enjoy the sense of nostalgia (怀旧感), which can remind me of how life used to be when I was younger. Don't get me wrong, however. I'm not one of those who love to talk ad nauseam about "the good old days".
As we know, there are moments when the past springs into the present. It's often a smell that will remind me of a particular place or person. A perfume, the scent of a flower, baking bread, bonfires...they all create an instant picture. For me it is the smell of a freshly painted room. We moved so many times when I was younger and each time the first thing my parents would do is decorate our bedrooms. The windows would be kept open to get rid of the smell of the paint but it would always linger on (留存) for days. Even today it fills me with a sense of new beginnings.
Those memories are fleeting (飞逝). But when I visit the seaside resort where we used to spend many of our family holidays, I can replay entire days in my head. I can vividly remember the weather, the salty smell of the sea, our dogs playing in the water, an ice cream and that feeling of exhaustion after a day in the fresh air.
Although having many photos of those days, I rarely look at them as I prefer to allow my memory to create the pictures. Today we can so easily capture (捕捉) the present with phones and cameras, upload the images and share that moment with our friends online. But, for me, that somehow takes away the unique connection.
【1】The underlined part "ad nauseam" in Paragraph 1 may be replaced by .
A.wisely B.endlessly
C.simply D.honestly
【2】According to the writer, a freshly painted room represents .
A.a new start B.a new home
C.another move D.another holiday
【3】Where is the passage most likely from?
A.A magazine. B.A guidebook.
C.A book review. D.A science fiction.
【4】How does the writer feel about the past?
A.Dull. B.Bitter.
C.Unforgettable. D.Regretful.
24、 Remittance (汇款) increase living standards in the country of origin. Remittances m a large share of the GDP of many developing countries. A study on remittances to Mexico found that remittances lead to a considerable increase in the availability of public services in Mexico, surpassing government spending in some localities.
Research finds that emigration and low migration barriers have net positive effects on human capital formation in the sending countries. This means that there is a “brain gain” instead of a" brain drain to emigration.
One study finds that sending Countries benefit indirectly in the long run from the emigration of skilled workers because those skilled workers are able to innovate more in developed countries, which the sending countries are able to benefit as a positive externality. Greater emigration of skilled workers consequently leads to greater economic growth and welfare improvements in the long run.
Research also suggests that emigration, remittances and return migration can have a positive impact on political institutions and democratization in the country of origin. Research also shows that remittances can lower the risk of civil war in the country of origin. Return migration from countries with liberal gender norms has been associated with the transfer of liberal gender norms to the home country.
Research suggests that emigration causes an increase in the wages of those who remain in the country of origin. A 2014 survey of the existing literature on migration finds that a 10 percent emigrant supply shock would increase wages in the sending country by 2 % - 5.5 %. A study of emigration from Poland shows that it led to a slight increase in wages for high-and medium-skilled workers for remaining Poles. A 2013 study finds that emigration from Eastern Europe after the 2004 EU enlargement increased the wages of remaining young workers in the country of origin by 6%, while it had no effect on the wages of old workers. The wages of Lithuanian men increased as a result of post-EU enlargement emigration. Return migration is associated with greater household firm revenues(收入).
Some research shows that the remittance effect is not strong enough to make the remaining natives in countries with high emigration flows better off.
It has been argued that high-skill emigration causes labor shortages in the country of origin. This remains unsupported in the academic literature though. According to economist Michael Clemens, it has not been shown that restrictions on high-skill emigration reduce shortages in the countries of origin.
【1】This passage mainly tells us that ______
A.people's living standards in the receiving countries have been greatly improved
B.emigration has both advantages and disadvantages to the sending countries
C.the reasons behind economic growth in the sending countries
D.the effect of migration on the sending countries
【2】From the first three paragraphs, we know that ______
A.the emigration of skilled workers brings economic growth to developed countries
B.emigration means a kind of “brain gain” rather than "brain drain"
C.the government in Mexico should spend more on public services
D.highly qualified workers are bound to return to their home country
【3】The examples in Paragraph 5 show that ______
A.return migration makes the natives better off
B.a wage increase is associated with economic growth
C.enlargement brings welfare to all Europeans
D.emigration leads to a salary increase for remaining natives
【4】According to the passage, what can we know about the country of origin?
A.The negative effects of high-skill emigration have shown up.
B.Remittances have a good effect on maintaining social stability,
C.High migration barriers can reduce shortages of skilled workers.
D.High-skill emigration may cause economic fall within a short time.
25、A few years ago, my father arranged to send me a mail-order fruitcake at Christmastime. While I had recently settled in Manhattan with a good job, he _______my cupboards and refrigerator might be bare.
I was 44 then, and he was 72. He wanted me to have a particular brand of fruitcake. Made in Texas, it was famous among fruitcake lovers-or, _______ , among people who gave fruitcakes to those who were assumed to _______ them. "It reminds me of my mother's," he said. My grandmother's _______ , I later learnt, was a cake typical of the Great Depression Dad grew up in, made without sugar, butter or eggs.
_______ the fruitcake was his way of trying to take care of me from afar. Regardless of my _______ status, I was still his son. A fruitcake, in his mind, was a _______ Christmas gift: Fruitcake can fill your belly and has a long shelf life.
“It should arrive the first week of December,“ he said. "Let me know what you think _______ you get it." I was looking forward to _______ the flavors that transported him to his childhood. The first week of December passed with no sign of his fruitcake. ________ by holiday mail, I assumed.
He remained ________ the fruitcake would come by New Year's Eve. Yet, January, February, and March came and went with no fruitcake. Though my father ________ to ask about it, I never once considered lying and telling him the fruitcake had ________arrived and was delicious. Instead I said, “That cake is orbiting earth, and sooner or later it will ________ . ”
Early last December, nearly a year after my father died from a failing heart, I got a call saying, “You have a package. " I went downstairs to pick it up. The brown box had a FedEx label with a ________ address in Texas.
【1】
A．feared
B．sensed
C．complained
D．prayed
【2】
A．above all
B．in turn
C．at least
D．on the whole
【3】
A．take
B．love
C．need
D．possess
【4】
A．wish
B．recipe
C．version
D．faith
【5】
A．Making
B．Sharing
C．Delivering
D．Ordering
【6】
A．disadvantaged
B．middle-aged
C．emotional
D．personal
【7】
A．perfect
B．cheap
C．popular
D．delicate
【8】
A．unless
B．before
C．once
D．though
【9】
A．creating
B．sampling
C．exposing
D．spreading
【10】
A．Mixed
B．Burdened
C．Replaced
D．Delayed
【11】
A．skeptical
B．concerned
C．hopeful
D．interested
【12】
A．forgot
B．continued
C．managed
D．hesitated
【13】
A．finally
B．gradually
C．hardly
D．annually
【14】
A．rot
B．explode
C．melt
D．land
【15】
A．campus
B．file
C．destination
D．return
26、假定你是李华，随着“祝融号”探测器（Zhurong rover）成功着陆火星，你校决定举行关于火星的科技讲座。请给来自新西兰的留学生朋友John写一封邮件。内容包括：
1.讲座的时间和地点；
2.讲座的目的和主要内容；
3.发出邀请。
注意：
1.写作词数应为80左右；
2.请按如下格式在答题卡的相应位置作答。
Dear John,
_______________________________________________________________________________________________________________________________________________________________________
Hope to see you on the big day.
Your sincerely,
Li HUa
邮箱： 