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随时随地学习
1、Only when we saw the photos about the air crash_____ how terrible it was.
A.had we known B.we had known C.did we know D.we knew
2、Chinese President Xi Jinping held a welcoming ceremony for US President Obama at ______Great Hall of the People in Beijing, _____ capital of China, on November 12, 2014.
A. the; the B. the; /
C. a; the D. /; /
3、Going to the dentist's ________ not necessarily have to be ________ awful experience.
A．do; an
B．does; the
C．do; /
D．does; an
4、As is often the case, there are always some barriers in the way, something _____ before we realize the real goal of our life.
A.to be got through B.got through C.getting through D.having been got through
5、Amy ______ better last night, but she was a little nervous and didn’t reach her best standard.
A. could perform B. must have performed
C. should perform D. could have performed
6、Don’t ________ when you fill out a job application. If you were a store clerk, for instance, don’t say you were the manager.
A. accelerate B. withdraw C. compromise D. exaggerate
7、I wonder whether you could ______ me ______ for the night when I come to London because all the hotels are full.
A. put; up B. put; away
C. put; out D. put; off
8、I wish I ________ the Great Wall with you tomorrow, but I’m preparing for the coming exam.
A. will climb B. had climbed C. climb D. would climb
9、________ gravity holds things together, some unknown ________ is working across the universe to pull everything apart.
A. While; force B. When; power
C. As; energy D. Since; strength
10、He hurried to the station, ______ the 9:30 train had already left.
A．to find
B．found
C．only finding
D．only to find
11、The book won’t be published until next year, ________ is disappointing.
A．which
B．when
C．why
D．that
12、 They reached the top of the mountain__________ they could see the highway wandering before them.
A. which B. why
C. whose D. where
13、We offer an excellent education to our students. ______, we expect students to work hard.
A.In return B.By turns
C.On the turn D.At every turn
14、The village evolved into a major e-commerce center, and ______the past, the villagers owed their success to the reform and opening-up policy.
A. reviewed B. to review C. reviewing D. being reviewed
15、The police________ the murderer everywhere when he suddenly appeared in the theatre.
A．are searching
B．were searching
C．is searching
D．was searching
16、The award was established in 1902 as a special______for outstanding people in this field.
A. statement B. distinction C. commitment D. instruction
17、Charley Oakley, NBA star hash’t lost game in the past three years．
A．a；the B．an；a
C．the；a D．an；the
18、—Shall we play football this afternoon?
— ________. We are taking an exam tomorrow.
A．I couldn’t agree more
B．That’s all right
C．Please do
D．You can’t be serious
19、The boy was so tired that he fell asleep ________ his mother could take off his clothes.
A．before
B．after
C．while
D．when
20、— Aren’t you interested in the new flat?
— ______. It is noisy near the sports center.
A. Not especially B. No wonder
C. Not a little D. No doubt
21、The numbers are shocking: women make up less than 25% of the STEM(science-technology-engineering-mathematics) workforce in the USA. Even if recent years have seen an increase, the numbers are still not representative of wider population.
Why does this under-representation of women matter? Research shows diverse teams perform better. Individuals from different genders, races, backgrounds and experiences bring different perspectives that can lead to creative solutions. Given the changes being brought on by the Fourth Industrial Revolution(4IR), we can't afford not to have all hands involved.
STEM fields are key to obtain the rewards of 4IR, but STEM fields are also key to dealing with the revolution's potential downsides, such as climate change, Internet-related war and the reorientation(再定位) of job sectors. So it is essential that women obtain the benefits and get involved in finding solutions.
However, why do women and girls participate in STEM fields at lower rates? Studies show that it is not an ability issue. Marian Wright, a children's rights activist, stated clearly, "You can't be what you can't see." When asked to draw a scientist, most students draw a white man in a lab coat. The great majority of portrayals of scientists and engineers in movies and television shows have been men.
But as awareness of the problem has grown, portrayals of women scientists and engineers in the media have begun to change. The success of movies like Hidden Figures, which tells the story of several African American women, working in engineering and mathematics, helped put the first humans into space, enables girls to not only see what women have already contributed, but to see themselves in that role.
4IR is changing the way we receive information, how we process it, how we work and what jobs we will do. It is happening at an unprecedented(前所未有的) pace. Because of this, we simply cannot afford to have any less than our whole population engaged and contributing. The historical focus of STEM courses at university and communities on weeding out students drove away women; now we need to focus on how to include everyone.
【1】What do we know from the passage?
A．Women in STEM are good at finding solutions.
B．Women are not as creative as men in STEM.
C．Not enough women are working in STEM.
D．Women have much lower status in STEM.
【2】What does the underlined word "problem" refer to?
A．There aren't enough positive female role models
B．Students usually more worship men scientists.
C．Female scientists are more exposed to the media.
D．The movies about women face a lot of challenges.
【3】What will probably be talked about following the last paragraph?
A．Women's role in related careers in STEM fields.
B．Practice of involving women in STEM courses
C．The categories of STEM courses in university.
D．The history and development of STEM courses.
【4】Which is the best title of the passage?
A．The Status of Women Scientists Is Rising
B．Women's Scientific Spirit Is Strengthened
C．Women Scientists Are Becoming Idols
D．The Times Call for Women Scientists
22、Time has always been of great interest to scientist...
Theory 1: According to Caltech cosmologist Dr Sean Carroll, the flow of time from past to future may be the symptom of our Universe having emerged from another universe that existed before the Big Bang and then gave birth to our own. Theory 2: In 1967, two American theorists came up with an equation describing the quantum state of the whole Universe. Known as the Wheeler-DeWitt equation, it includes many key features of the universe, such as its size. But one aspect is absent: time. Some theorists believe this implies that time only exists in our minds. Theory 3: According to theorist Prof Lee Smolin at the Perimeter Institute, Canada, the existence of life in the Universe is the result of the laws of physics evolving to their current state over an unlimited number of previous universes. If true, this means that our very existence is proof that time does exist. Theory 4: Dark energy, the mysterious anti-gravitational force that drives the expansion of the Universe, may be linked to the existence of the arrow of time. Last year, two cosmologists at the Yerevan Physics Institute showed that dark energy leads to the growth of entropy, a measure of disorder, in the Universe. |
【1】Which theory doesn’t include time?
A．Theory 1.
B．Theory 2.
C．Theory 3.
D．Theory 4.
【2】According to the passage, which of the following statements is true of dark energy?
A．It increases in strength with gravity.
B．It is what keeps the universe in order.
C．It is what makes the universe get bigger.
D．It leads to the existence of multi-universities.
【3】All the four theories imply that ________.
A．time does stay flexible
B．time does remain constant
C．time does go forth and back
D．time does exist in some way
23、 When you install an app on your smartphone, you’re often asked whether you’d like to share your list of contacts with that app. That might be a convenient way to connect with friends and family, but it also means you’re giving away their personal information to the app developers.
And that personal information could end up being used to create so-called “shadow profiles” of your contacts —even if they don’t use that app or social media service.
Shadow profiles appeared as a potential problem in 2011 when an Ireland-based advocacy (辩护) group accused Facebook of gathering information on non-users, including names, email addresses and phone numbers.
The following year researchers showed that social network companies such as Facebook could use machine learning to pretty accurately predict whether two non-members known by the same member also know one another. And a recent study in the journal Science Advances raises the stakes.
In that work, David Garcia, chairman of systems design at the sci-tech university ETH , used a social network member’s personal information to infer relationship status and sexual orientation (倾向) of the members’ contacts who did not have their own user accounts on that social networking site.
He was able to do that using data from the Friendster social networking site. He says he chose those two attributes—relationship status and sexual orientation—because they can carry important privacy consequences and were both available in the Friendster data set.
Garcia is careful to point out that he didn’t prove that shadow profiles exist, just that they can be created. His work also reminds us how much we wind up giving away online-- about ourselves and about the people in our lives.
【1】According to Paragraph 3, “shadow profiles” meant to collect .
A.some users’ information
B.some non-users’ information
C.some social networking sites
D.some social network companies
【2】What does the underlined part “raises the stakes” in Paragraph 4 mean?
A.use personal data
B.predict accurately
C.provide more evidence
D.infer personal information
【3】Which of the following is not right?
A.Shadow profiles don’t exist.
B.Shadow profiles can be created
C.Contacts’ information can be predicted
D.Our information can be given away online
【4】What is Garcia’s attitude towards his work?
A.Positive B.Negative
C.Diligent D.Cautious
24、The amount of fish caught worldwide is much larger than has been reported. And that could mean serious problems for the environment and nations that depend on fisheries(渔业). A new estimate shows that it is 32 million tons higher than countries have been reporting yearly.
The same report notes that the world's fish catch has been declining since the late 1990s. Countries report their industrial catches to the United Nations Food and Agriculture Organization. But they do not report other kinds of fishing. This include the catches of small commercial fisher, which are called artisanal fisheries, and fishing for recreation and individual food.
Daniel Pauly at the University of British Columbia in Canada led the study. He noted that a huge amount of some catches is thrown away. “For example, shrimp trawlers(拖网渔船)keep only the shrimp and the fish that they catch—often eight to ten times as much as the shrimp—gets thrown away.”
Pauly told VOA that better estimates of the actual global catch will help ensure there will be enough fish in the future. “But our figures suggest that since 1996 a rapid decrease is happening. And if you project this forward you end up in a few decades having much less catch, literally no catch. So that is potentially dangerous.”
Researchers also found ways the world's fisheries are changing. They found that fishing fleets of larger nations are catching fish in the waters of developing countries more and more.
Pauly said he was surprised by the amount of fishing done by foreign fleets in competition with local fishers. “In West Africa, the figure that was most astonishing is the enormous role of foreign fishing—of European and Asian vessels fishing legally or illegally——and competing against local fishers. On the other hand for the U. S., Australia and some developing countries, such as the Bahamas, what was apparent is the enormous contribution of recreational fisheries, which also never get reported to the FAO.”
Researchers say inaccurate data also harms the development and supervision(监管)of effective policy and management measures.
【1】What's the main idea of the passage?
A．The management of global fishing need improving.
B．The world's fish catch has been declining.
C．The global fishing competition is serious.
D．False reports of fish caught harms economy environment.
【2】What does the underlined word “it”（in Para. 1）refer to?
A．The amount of foreign fishing.
B．The amount of local fishing.
C．The amount of all fish caught worldwide.
D．The amount of recreational fishing.
【3】Which kind of the fishing has been reported to the FAO?
A．Commercial fishing.
B．Industrial fish catches.
C．Fishing for entertainment.
D．Fishing for individual food.
【4】Which part is this article possibly chosen from on the Internet?
A．Health report.
B．Explorations.
C．Science in the news.
D．Agricultural report.
25、A recent research finds that successful professional women are healthier and live longer on average than housewives. In contrast, the ________ are usually in poorer health than the job-holders. It also shows that when the unemployment rate goes up by 1%, the death rate ________ by 2% accordingly.
Actually, many previous studies point to the ________ conclusion: work, especially success in work, is ________ to health. Here are their ________.
Working together, people feel that they ________ a certain group. Such kind of belonging is very ________ to their health. ________, they feel isolated (孤立的) and lonely. It affects people both ________ and physically.
Success in work gives people a sense of ________ and makes people feel happier. For example, teachers feel very ________ when they see their students making rapid progress. Successful ________ give doctors a sense of power to save people's lives. For ________, the excitement in completing their books can be beyond ________. Of course, happier people usually enjoy better heath and ________ lives.
【1】
A．old
B．poor
C．jobless
D．rich
【2】
A．stays
B．changes
C．falls
D．increases
【3】
A．wrong
B．same
C．brief
D．contradictory
【4】
A．beneficial
B．equal
C．harmful
D．familiar
【5】
A．tips
B．measurements
C．results
D．explanations
【6】
A．rely on
B．appeal to
C．belong to
D．focus on
【7】
A．weak
B．exciting
C．dangerous
D．important
【8】
A．Otherwise
B．Instead
C．However
D．Therefore
【9】
A．mentally
B．unnecessarily
C．officially
D．openly
【10】
A．responsibility
B．humor
C．standard
D．achievement
【11】
A．worried
B．happy
C．sad
D．lucky
【12】
A．tests
B．fights
C．operations
D．deals
【13】
A．workers
B．farmers
C．authors
D．managers
【14】
A．reach
B．action
C．abilities
D．words
【15】
A．busier
B．wealthier
C．worse
D．longer
26、假定你是李华，你九月三日从某国外网店订购了10本书，到货后发现包裹中有9本书，且只有6本书是你订购的。请给该网站客服写一封邮件，内容包括：
1．说明情况；
2．要求对方解决问题。
注意：
1．词数不少于100词；
2．可以适当增加细节，以使行文连贯；
3．信的开头和结尾已给出，不计入总词数。
Dear Sir/Madam,
I’m Li Hua.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
邮箱： 