微信扫一扫
随时随地学习
随时随地学习
1、Our teacher looked here and there on our playground ________ looking for something.
A．even though
B．even if
C．as if
D．only if
2、Mark ______ have hurried. After driving at top speed, he arrived half an hour early.
A．needn’t
B．wouldn’t
C．mustn’t
D．couldn’t
3、He studied hard and later became a well-known writer, which was ______ his father had expected.
A.why B.how C.that D.what
4、I’m not sure whether I’ll succeed in persuading her to join us. ______, I’ll try my best to make it.
A.Besides B.Anyhow C.Generally D.Therefore
5、The thief_____ the papers all over the room while he was searching.
A.abandoned B.vanished C.scattered D.deserted
6、Arriving too early to a dinner party could appear slightly rude if the host ________ their preparations.
A.completes B.is completing C.completed D.has completed
7、—Have you accepted the job, Aaron?
—Yes. But my ____ reaction was to decline the offer.
A.fierce B.initial C.rigid D.allergic
8、 Life is harder for Senior Three students throughout China．Hardly _____ endless exercises or tests．
A．does everyday go by with
B．any day goes by with
C．everyday goes by without
D．does any day go by without
9、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
10、-Do you still want to become a professional footballer?
-That ambition has never died. I'm still as__________ and determined to make it.
A.elegant B.embarrassed C.explicit D.enthusiastic
11、—Why do you look so upset?
—The electricity was cut off suddenly and my essay________unfinished since.
A.was left B.has left C.left D.has been left
12、--- Can you introduce me a high quality machine?
--- My pleasure. _______ well even on wet roads, this kind of car is very popular.
A.Handled B.To handle C.Handling D.Being handled
13、—Could you check my list to see I have forgotten anything?
—No problem.
A. whether B. which
C. that D. what
14、The boy, though up in the countryside, soon adapted himself to the way of life in this big city.
A.bringing B.having brought C.brought D.being brought
15、Using this data, third party companies could then paint an accurate picture of users’ habits and ________ in order to serve them more targeted advertisements.
A.presentation B.preservation C.preference D.persistence
16、It’s strongly advised that smokers not be allowed to smoke in any room ________ babies currently occupy.
A. where B. whose
C. that D. as
17、Li Jiaqi, a well-known live-streaming host in China, is reported________over 8 million followers on Weibo.
A.possessing B.to be possessing C.to have possessed D.having possessed
18、—It's a long journey. My car couldn't make it.
—You can drive my car. It's quite old, but it's still pretty________.
A.reliable B.convenient C.reasonable D.available
19、Contrary to popular belief, the ants, hardworking ________ they are, have their time for play.
A. because B. while C. as D. where
20、The company and the effect brought about did great good to our business in the market.
A. it B. which
C. that D. what
21、It is believed that human story begins in Africa and ends about 200,000 years later with their seven billion descendants (后代) spread across the Earth, living in peace or at war, their faces lit by campfires and computer screens.
In between is an exciting tale of survival, movement, isolation, and conquest, most of it occurring before recorded history. Who were those first modern people in Africa? What routes did they take when they left their home continent 60,000 years ago to expand into Europe and Asia? When and how did humans reach the Americas? For decades, the only proof was found in a small number of scattered bones and artifacts that our ancestors left behind on their journeys. In the past 20 years, however, DNA technologies have allowed scientists to find a record of ancient human migrations in the DNA of living people.
“Every drop of human blood contains a history book written in the language of our genes,” says population geneticist Spencer Wells. The human genetic code, or genome, is 99.9 percent identical throughout the world. But while the bulk of our DNA is the same, what’s left is responsible for our individual differences — in eye color or disease risk, for example. On very rare occasions, a small change, called a mutation, can occur, which is then passed down to all of that person’s descendants. Generations later, finding that same mutation in two people's DNA indicates that they share the same ancestor. By comparing mutations in many different populations, scientists can trace their ancestral connections.
These ancient mutations are easiest to track in two places: in DNA that is passed from mother to child (called mitochondrial DNA, or mtDNA for short), and in DNA that travels from father to son (known as the Y chromosome, the part of DNA that determines a child will be a boy). By comparing the mtDNA and Y chromosomes (染色体) of people from various populations, geneticists can get a rough idea of where and when those groups separated in the great migrations around the planet.
【1】The best title for this reading could be ________.
A．Exploring human history
B．Finding DNA differences
C．Making a biology experiment
D．Discovering ancestry in DNA
【2】What can we infer from the quote of Spencer Wells in Paragraph 3?
A．A drop of blood contains genetic information that can tell a person’s ancestral history.
B．The organization of information in a history book is similar to the organization of DNA within a gene.
C．Every drop of blood contains enough DNA information to fill many history books.
D．Although people speak different languages, all human blood contains the same language.
【3】The underlined word “bulk” in Paragraph 3 most probably means ________.
A．the large size
B．the main part
C．the weight or shape
D．the quantity
【4】Which of the following statements is NOT true according to the reading?
A．The earliest people are said to originate from Africa and spread across the world.
B．Scientists have found ways to determine whether people share the same ancestor.
C．Human DNA remains the same as what is passed down from their ancestors.
D．Comparing mtDNA and Y chromosomes can help identify human migrations.
22、Every driver loves sailing through a series of green lights without having to stop and wait at a traffic light. Now, thanks to artificial intelligence, German researchers have found a way to reduce time spent at intersections. And they have gone further than that. This innovation is now being tested in the small German town of Lemgo.
For the research, scientists first studied algorithms taken from a busy intersection to learn about traffic patterns and where improvements were most needed. Actually, it is necessary to adjust waiting time at intersections as conventional methods are inflexible and cannot interpret all traffic flow patterns.
The new AI method uses radar sensors and high-resolution cameras to interpret traffic patterns in real time. They can determine the speed of traffic as well as waiting time and combine this with self-learning algorithms.
The intelligent lights are said to improve traffic flow by 10 to 15 percent, which results in money saved. (The EU estimates that traffic jams create economic damage that adds up to 100 billion Euros a year.) Aside from reducing commuting time, these traffic lights will reduce noise and CO2 emissions from cars moving slowly at intersections.
Another exciting development in this research focuses on pedestrians crossing intersections. Using AI, researchers can confirm how many people are waiting at a pedestrian crossing and whether some of these people will need extra time to cross the street. Using a 3D points cloud, they can tell if someone has disabilities or is elderly without identifying the individual.
Testing will be done until this summer in the German towns of Lemgo and Bielefeld, with researchers optimistic that it will be adopted abroad. “We are the first team in the world to test deep reinforcement learning for traffic light control under real-world conditions. And our testing work has encouraged others to make similar efforts,” scientist Arthur Müller said.
【1】What can the new AI method do?
A．Interpret real-time traffic patterns.
B．Offer directions to lost pedestrians.
C．Control traffic lights without sensors.
D．Identify individual car drivers quickly.
【2】What is paragraph 4 mainly about?
A．Potential economic damage caused by traffic jams.
B．The problems with the AI method in the real world.
C．The benefits brought by the intelligent traffic lights.
D．Pedestrians’ efforts to create a better environment.
【3】How might the AI method benefit the pedestrians with special needs?
A．By leading them to a special crossing.
B．By providing AI-based guiding service.
C．By shutting down the lights for a while.
D．By lengthening the time for green lights.
【4】What can we know about the team’s testing work?
A．It is based on similar testing efforts.
B．It is pioneering and inspiring.
C．It has failed in real conditions.
D．It has been well adopted abroad.
23、In the icy Himalayas, user kebi057 on TikTok, a video sharing platform, shows people around the world about everyday life in Tibet. And people are definitely taking a look. He has over 236,000 followers and nearly 4 million likes for his videos-clips of himself pulling his sled with his dog, preparing food and, in his most popular video, building a "natural refrigerator" out of ice blocks—to the amazement of people in the comments, who were amazed at his ice box.
When lockdown went into effect earlier this year, many people turned to TikTok to pass the time. The short-video platform has now hit over 2. 6 billion downloads globally and was the most downloaded app of 2020, according to mobile app analytics firm App Annie.
The pandemic is part of the reason for surging TikTok popularity. "It's been a bleak year for many people. Much of the content you see on TikTok is fun, upbeat and a welcome break from the day-to-day realities of the COVID crisis," says Damian Radcliffe, a professor at the University of Oregon who researches digital trends.
With TikTok's growing popularity, digital researcher Damian Radcliffe says one of the biggest issues the app is facing globally is the spread of misinformation on its platform. "We've already seen the app like many other platforms—filled with conspiracy（阴谋）theories, misinformation around elections and misinformation related to the COVID vaccine and the wider health crisis," he explains.
In India, TikTok launched a campaign called MatKarForward to tackle the issue of misinformation. The topic, which has received over 3. 7 billion views, encourages users to stop and think before forwarding videos that promote fake news, such as COVID-19 "homemade" remedies and various conspiracies.
【1】What's the author's purpose of writing paragraph 1?
A．To introduce the topic of the text.
B．To arouse the interest of the readers.
C．To present how enjoyable life is in Tibet.
D．To describe the popularity of a particular user.
【2】What does the underlined word in paragraph 3 mean?
A．Pleasant.
B．Confusing
C．Depressing
D．Meaningful
【3】What's the author's attitude towards Tiktok's dealing with misinformation?
A．Negative.
B．Objective.
C．Optimistic.
D．Ambiguous.
24、 In the UK, the Met Office — which keeps track of the weather — chooses the names for storms but they’re asking for members of the public to help by suggesting new ones. It’s five years since they first asked people for ideas and that time they got more than 10,000 suggestions. 【1】.
Why do storms have names?
The Met Office decided to start giving storms names back in 2014, in the same way they do in America. The first windstorm to be named was Abigail on 10 November, 2015. 【2】 They think it will be easier to follow the progress of a storm on the TV, radio, or on social media, if it has a name.
【3】?
Since September 2015, the Met Office has asked people for suggestions for storm names. The most popular names put forward by the public are made into a list, along with other names suggested by Met Office. Sometimes the UK will be hit by storms from Europe or other countries, and the storm will keep the name the first country gave it — even if it doesn’t follow the UK’s alphabetical order - like Storm Jorge from Spain which hit Europe in February.
How big do storms have to be to get a name?
Not all storms will be big enough to get names — only those expected to cause significant damage. A storm will be named when it has the potential to cause an amber ‘be prepared’ or red ‘take action’ warning.
Who decides if they’re named after girls or boys?
The UK storms will take it in turns to be girls ‘or boys’ names.【4】 Scientists think that’s because people find female names less threatening.
Which storm name will be picked first?
【5】. That’s because the US National Hurricane Centre leaves out names that begin with these letters. National Oceanic and Atmospheric Administration spokesman said, “It’s just too difficult to find names beginning with X, Y and Z.” The Met Office has done the same thing to make sure official storm naming in the North Atlantic is consistent.
A．How are the names picked
B．What names do people like most
C．Unexpectedly, it’s becoming popular that people chase storms in different locations
D．The Met Office hoped that naming big storms will make people more aware of them and how dangerous they can be
E．They will be taken from the list in alphabetical order, but there are no storms that start with the letters Q, U, X, Y and Z
F．Strangely, research shows that hurricanes with female names are more likely to hurt more people than those with males names
G．During these years we’ve had lots of storms with different names including Storm Francis, Storm Dennis, and Storm Ophelia
25、 This past fall, my husband and I stepped into the local Aldi for groceries. While _______, I did my usual _______ of replying to the cashier’s “How are you today?” with a short but real answer. Then I looked at her and said, “And how are YOU doing?” and waited kindly and _______ for an answer.
She was a little _______, but then she got started. As it turned out, her elderly grandfather was the most important in her mind as he had been _______ lately in hospital. Her _______ was obvious in spite of her bravery. She said, “I know he is ninety-one, but ...,” which turned into a sad low whisper before she _______ herself. “If it won't _______ you, I will pray for him,” I said. “Oh, thank you!” she replied.
Several weeks later, we wound up in her _______ again. After the usual “How are you?” I paused and then quietly asked, “I hope this is not a bad ________, but how is your grandfather doing?”
I could ________ she had to think a moment and to recall why I was asking. Then her face ________ , and she started excitedly telling us how he was a(n) ________ old bird, how he recovered, and was doing well. She still ________ with joy even after we had moved to the ________ area.
I was amazed at how something so seemingly ________ meant so much to her, but it makes sense, really. Sometimes all we ________ is for someone to see us and care, to care if we are hurting and to ________ with us in our joy.
Taking the time to ________ when we ask “How are you?” is such a small action, only taking a few moments out of our day, yet how important a(n) ________ that tiny amount of time can have!
【1】A.hanging out B.checking out C.driving on D.holding back
【2】A.practice B.approach C.combination D.connection
【3】A.amusedly B.adequately C.expectantly D.pityingly
【4】A.disappointed B.surprised C.delighted D.frightened
【5】A.working B.training C.helping D.struggling
【6】A.emotion B.skepticism C.concern D.excitement
【7】A.caught B.explained C.praised D.cheered
【8】A.demand B.interest C.protest D.offend
【9】A.turn B.line C.order D.direction
【10】A.weather B.idea C.question D.answer
【11】A.swear B.promise C.expect D.tell
【12】A.came up B.lit up C.took up D.cheered up
【13】A.dull B.childish C.dynamic D.rough
【14】A.overflowed B.filled C.came D.buried
【15】A.waiting B.entering C.eating D.bagging
【16】A.tough B.small C.difficult D.fulfilling
【17】A.suggest B.possess C.need D.prevent
【18】A.celebrate B.discuss C.exchange D.transform
【19】A.listen B.act C.argue D.speak
【20】A.moment B.feature C.aim D.influence
26、假定你是李华，你的笔友Charles最近对学习汉语成语很感兴趣，特来信交流。请你用英文给他回一封信，内容包括：
1. 学习成语的好处；
2. 学习成语的方法；
3. 盼望多交流。
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 Charles,
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
邮箱： 