1、________ as a problem then, drugs were produced and sold openly, available to almost everyone who could afford them.
A.Having not been recognized
B.Not having been recognized
C.Not having recognized
D.Having not recognized
2、He found the problem was hard to ________
A.get rid
B.get rid of
C.be got rid of
D.be got rid
3、_____ he realized it was too late to return home.
A. No sooner it grew dark than
B. Hardly did it grow dark when
C. It was not until dark that
D. It was until dark that
4、 ___ warmly for his work, he was too ___ to fall asleep.
A. Praising; excited B. To praise; exciting
C. Praised; exciting D. Praised; excited
5、—What is the Group G8?
—Oh, It is a group _____ the eight of the richest countries or areas of the world.
A.making up of B.consisting of C.composing of D.made of
6、 You are asked to attend the meeting ______ in the hall this weekend.
A.being held
B.held
C.to be held
D.holding
7、We were having a picnic when _______ there came a downpour, which was really a wet blanket.
A. all at once B. in addition
C. in return D. as well
8、In American the relation between parents and children is usually not so close as _______of the Chinese family.
A.that B.it C.one D.the other
9、We will be shown around the city: schools, museums and some other places, _____ other visitors seldom go.
A. what B. which C. where D. when
10、 There is a ______ of furniture in the market, which can satisfy all the customers’ demand.
A. variety B. number C. description D. combination
11、We shouldn't take _____ for granted that we still have a lot of time before the Entrance Examination.
A. this B. that
C. it D. such
12、Don't ________any detail in your account even if a word.
A. let out B. take care
C. make sure D. make out
13、It is one of the most surprising moments in Oscar history________actor Will Smith walked on stage and slapped Chris Rock for a joke________Rock made about Smith’s wife's hair.
A.which; that
B.that; when
C.when; that
D.which; which
14、The athletes are anxiously waiting for the final ________ of the game, because it is essential for them to go into the next round.
A.outcome
B.outline
C.comeback
D.cooperation
15、—Hi, Lily. Don’t forget to watch I’m a Singer at 20: 10 this Friday!
—What a pity! I_________ in a plane to Hainan for a meeting then.
A.will sit
B.will be sitting
C.am sitting
D.sit
16、 The old man lived in a house, in front of which _____ with a history of 100 years.
A. does a tall tree stand B. stands a tall tree
C. a tall tree is standing D. a tall tree stands
17、Some festivals__________ to honor the dead or to satisfy the ancestors.
A.be held
B.is held
C.are hold
D.are held
18、English is a language shared by several diverse cultures, __________ uses it differently.
A. all of which B. each of which
C. all of them D. each of them
19、_____ you can succeed or not mainly depends _____ how hard you work at it.
A.That; on B.What; upon C.Whether; upon D.If; on
20、Whoever is in charge of the mining company will ________ the responsibility for safety accidents.
A. skip B. supervise
C. assume D. distinguish
21、 Our teachers often encourage us that every minute we spend on studying will finally _______ in the near future.
A. run out B. go off C. come out D. pay off
22、________ too early to the foreign language study, according to some experts, may lead to some unfavorable outcomes.
A. Exposing B. Having exposed C. Being exposed D. Exposed
23、A strong man will cry, but will not ________ in the towel.
A.give
B.get
C.miss
D.throw
24、Think about it twice, ________ I think, you may change your mind.
A.so B.but C.or D.and
25、Darwin saw a variety of new species on the Galapagos Islands, but it was the birds ______ interested him the most.
A.what
B.that
C.which
D.who
26、San Francisco Fire Engine Tours
1. San Francisco Winery Tour
Running: February 1st through April 30th. Departing from the Cannery: Tell time upon request. Duration (时长):2 hours Price: $90.
This delicious tour goes through the city on its way to Treasure Island where we will stop at the famous Winery SF. Here you can enjoy 4 pours of some of the best wine San Francisco has to offer. (Included in tickets price)
2. Back to the Fifties Tour
Running: August 16th through August 31st. Departing from the Cannery 5:00 pm and 7:00 pm Duration: 2 hours Price: $90.
This tour transports you back in time to one of San Francisco’s most fantastic periods, the 1950s! Enjoy fun history as we take you through San Francisco for a free taste of ice cream.
3. Spooky Halloween Tour
Running: October 10th through October 31st. Departing from the Cannery: 6:30 pm and 8:30 pm Duration: 1 hour and 30 minutes Price: Available upon request.
Join us for a ride through the historical Presidio district .Authentic fire gear (服装) is provided for your warmth as our entertainers take you to some of the most thrilling parts of San Francisco
4. Holiday Lights Tour
Running: December 6th through December 23nd. Departing from the Cannery 7:00 pm and 9:00 pm Duration: 1 hour and 30 minutes.
This attractive four takes you to some of San Francis’s most cheerful holiday scenes. Authentic fire gear is provided for your warmth as you get into the holiday spirit.
Advance reservations required.
【1】Which of the tours is available in March?
A.San Francisco Winery Tour.
B.Back to the Fifties Tour.
C.Spooky Hallowen Tour.
D.Holiday Lights Tour.
【2】What can tourists do on Back to the Fifties Tours?
A.Go to Treasure Island.
B.Enjoy the holiday scenes.
C.Have free ice cream.
D.Visit the Presidio district.
【3】What are tourists required to do to go on Holiday Lights Tour?
A.Take some drinks.
B.Set off early in the morning.
C.Wear warm clothes.
D.Make reservations in advance.
27、 Between a quarter and one third of all marine species rely on coral reefs (珊瑚礁)at some point in their life cycle. The Great Barrier Reef, the world's largest coral reef, covers nearly 133,000 square miles and is home to more than 1,500 species of fish, 411 species of hard coral and dozens of other species.
Australian's Great Barrier Reef has lost 50% of its coral populations in the last three decades, with climate change a key driver of reef disturbance, a new study has found.
Researchers from the Centre of Excellence for Coral Reef Studies, in Queensland, northeastern Australia, studied coral communities and their colony size along the length of the Great Barrier Reef between 1995 and 2017, finding reduction of virtually all coral populations.
“We found the number of small, medium and large coral on the Great Barrier Reef has dropped by more than 50% since the 1990s," reported co-author Terry Hughes, a professor at the centre, in a statement.
Reefs are basic to the health of marine ecosystems — without them, ecosystems collapse, and marine life dies. Coral population sizes are also considered important when it comes to the coral's ability to reproduce." A coral population has millions of small, baby corals, as well as many large ones,“ said Andy Dietzel, a doctoral student in a statement. "Our results show the ability of the Great Barrier Reef to recover becomes weak compared to the past," he added.
Population falls occurred in both shallow and deep water coral species, experts found, but branching coral and table-shaped coral — which provide habitats for fish — were worst affected by mass bleaching (白化)events in 2016 and 2017, caused by record-breaking temperatures.
Warm ocean temperatures are the main driver of coral bleaching, when coral turns white as a stress response to water that is too warm. Bleaching doesn't kill coral immediately, but if temperatures remain high, eventually the coral will die, destroying a natural habitat for many species of marine life.
The new study found the serious worsening of coral colonies in the Northern and Central Great Barrier Reef following the mass bleaching events in the past five years, and experts said the southern part of the reef also suffered record-breaking temperatures in early 2020.
“We used to think the Great Barrier Reef is protected by its huge size — but our results show that even the world's largest and relatively well-protected reef system is increasingly dropping, Hughes said. He warned that climate change is driving an increase in the frequency of the reef disturbance like marine heat waves. "There is no time to lose — we must sharply reduce greenhouse gases as soon as possible," he said.
【1】What can we know about coral reefs?
A.They are not able to recover by themselves.
B.They make up the largest ecosystem in the sea.
C.They can easily be disturbed by other marine species.
D.They can influence the existence of other marine species.
【2】What does the underlined word “collapse" in Paragraph 5 mean?
A.Change.
B.Disappear.
C.Crash.
D.Progress.
【3】How does coral respond to high temperatures?
A.It will die very soon.
B.It will change its color.
C.It will fail to reproduce.
D.It will kill other species.
【4】What does Terry Hughes want to say in the last paragraph?
A.The Great Barrier Reef doesn't have a self-protecting mechanism.
B.The Great Barrier Reef is no longer the world's largest coral reef.
C.Measures must be taken to protect coral reefs without delay.
D.Climate change can increase the frequency of heat waves.
28、The idea of billions of people going through a few masks a week during this pandemic (疫情) rings alarm bells, but a team of researchers in Melbourne, Australia, may have the solution.
To recycle the abandoned masks, Jie Li and his team added millions of face masks to road-paving (铺路) materials. They found the polypropylene (聚丙烯)plastic used to make single-use face masks could really increase the flexibility of the road.
The new composite material is a mixture of about 2% masks, with recycled concrete aggregate (RCA)—a material produced from waste concrete and other minerals from buildings pulled down. This recycled material found in the study is ideal for two of the four layers generally required to create roadways. And the final product is more resistant to wear than normal asphalt (沥青), as well as being cheaper too, if there was a method for collecting masks.
Li and his team did a cost-analysis and found that, at $26 per ton, the RCA was about half the cost of mining materials, and as much as a third of the cost of shipping the used masks to a landfill (垃圾填埋场). If the percentage of damaged roads in Washington state were repaired with Li’s mixture, it would reuse nearly 10 billion masks, sparing American landfills hundreds of millions of tons of trash.
The team is going to look for industry partners or governments willing to give their plastic mask road an opportunity for a large-scale test.
【1】What’s the purpose of the research?
A.To reduce burden on the environment.
B.To invent a method for collecting masks.
C.To find a substitute for asphalt.
D.To ring the alarm bells.
【2】What does the underlined word “composite” in Paragraph 3 means ?
A.popular.
B.combined.
C.powerful.
D.original
【3】What do we know about the new material?
A.It is mainly made of masks.
B.It is expensive to ship.
C.It has four layers.
D.It is money-saving.
【4】What will Li’s team probably do next?
A.His team will do a cost-analysis.
B.His team will seek for support.
C.His team will increase the flexibility of roads.
D.His team will repair the damaged roads.
29、Today just as technology changed the face of industry, farms have experienced an “agricultural revolution”. On the farm of today, machines provide almost all the power.
One of the most important benefits will be the farm computer. A few forward-looking farmers are already using computers to help them run their farms more efficiently. The computers help them keep more accurate records so they can make better decisions on what crops to plant, how much livestock (家畜) to buy, when to sell their products, and how much profit they can expect. Many computer companies have been developing special computer programs just for farmers. Programs are being written for pig producers, grain farmers, potato farmers, and dairy farmers. In the future, farmers will be able to purchase computer programs made to their needs. Because of the growing importance of computers on the farm, students at agricultural colleges are required to take computer classes in addition to their normal agricultural courses. There can be no doubt that farmers will rely on computers even more in the future. While the old-time farm depended on horse power, and modern farms depend on machine power, farms of the future will depend on computer power.
Another technological advance which is still in the experimental stage is the robot, a real “mechanized hired hand” that will be able to move and, in some ways, think like a human being. Agricultural engineers believe that computer-aided robots will make shocking changes in farming before the end of the century. Unlike farmers of the present, farmers of the future will find that many day-to-day tasks will be done for them. Scientists are now developing robots that will be able to shear(修剪) sheep, drive tractors, and harvest fruit. Even complex jobs will be done by robots. For example, in order to milk their cows, farmers must first drive them into the barn, then connect them to the milking machines, watch the machines, and disconnect them when they are finished. In the future, this will all be done by robots. In addition, when the milking is completed, the robots will automatically check to make sure that the milk is pure. The complete change of the farm is far in the future, but engineers expect that some robots will be used before long.
【1】Which sentence carried the main idea of the whole passage?
A. The first sentence of the first paragraph.
B. The first sentence of the second paragraph.
C. The first sentence of the third paragraph.
D. The last sentence of the second paragraph.
【2】According to the passage, computers can not help farmers decide _______.
A. what livestock to raise
B. whether to plant a certain kind of crop
C. how much money they can earn from their products
D. when to sell their products
【3】Which of the following statements is true?
A. Farmers in the future will depend totally on computers.
B. Students at agricultural colleges must take computer classes because they can do nothing without the help of computers on today’s farms.
C. Both computers and robots have been in use on today’s farms.
D. Farmers mainly use machines on their farms at present.
【4】What is the best title for the whole passage?
A. Computer, Farmers’ Best Friend
B. The Agricultural Revolution
C. Farmers in The Future
D. Computers and Robots
30、When I was a child, my family went to the beach often. However, we _________ played in the sand or swam in the ocean. Nature was to be _________ far away, with the car windscreen in between. We would wave to the sea from our _________, watch the sunset and drive home. My parents were _________ in crowded and polluted cities. Their upbringing made them think maybe it was _________ for kids to stay inside. Without knowing it, I was _________ by their attitudes.
It was my own children who led me to another _________. They liked observing earthworms and jumping in mud. Their such _________ about the natural world allowed me to see it in a _________ way. On beach trips, I found myself __________ to dig into the sand with them and __________ its cool graininess (颗粒感) as they buried me in it.
Last summer, my love for __________ led to us buying a house in a farming town near a mountain. It’s something I wouldn’t have __________ as a city girl. I’ve found a deeper connection to nature and I’m grateful for it. There are miles of tracks around us that I __________ every day. I walk through snow, mud and rain, __________ my boots — which I bring straight into the house.
【1】
A.still
B.never
C.always
D.sometimes
【2】
A.transformed
B.evaluated
C.appreciated
D.greeted
【3】
A.vehicle
B.tent
C.house
D.hotel
【4】
A.hired
B.raised
C.involved
D.trapped
【5】
A.warmer
B.happier
C.funnier
D.safer
【6】
A.influenced
B.confused
C.bothered
D.reminded
【7】
A.career
B.future
C.finding
D.path
【8】
A.concern
B.doubt
C.curiosity
D.knowledge
【9】
A.systematic
B.standard
C.general
D.different
【10】
A.hesitant
B.astonished
C.anxious
D.disappointed
【11】
A.shared
B.enjoyed
C.interpreted
D.showed
【12】
A.shore
B.sand
C.farming
D.nature
【13】
A.achieved
B.imagined
C.supported
D.acknowledged
【14】
A.explore
B.notice
C.measure
D.preserve
【15】
A.washing
B.cooling
C.dirtying
D.polishing
31、Directions: Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.
An hour’s nap at work may help IT programmers to write better code(编码), according to recently published research. So it does the same to children in learning. Traditionally seen as the 【1】 of older people or the very young, experts now say that a midday nap can reserve information overload,【2】 information processing and aid learning. These findings from Harvard University have important implications for learning real-life skills, including those 【3】 with sports, playing a musical instrument and IT workplace situations such as complex software coding.
The studies suggest that the brain uses sleep to restore overused brain circuits and strengthen the 【4】 of actions and skills learned during the day. They have found that any amount of sleep, even a short nap, appears to improve our ability to 【5】 information and to learn. As part of the research, volunteers were trained to perform a complex visual task and were then 【6】 into three groups where some had no sleep, others a 30-minute “power” nap and another group a one-hour nap. The longer they slept, the better they performed. Researchers believe 【7】 that the brain continues to learn after training has stopped and this learning only occurs during the sleep.
According to the website www.self-hypnosis.co.un, self-hypnotism(催眠) will improve your self confidence, help you to 【8】 anxiety, sleep better, enjoy public speaking and create concentration and focus. The website gives advice on how to perform self-hypnosis at work. It recommends going to the toilet, a quiet room or even taking in some fresh air in the local park. Sit down, close your eyes and recall a time when you felt 【9】 and then focus on relaxing all the parts of your body. Try this for 10-20 minutes and you should 【10】 an increase in mental agility(机敏), creativity and problem-solving skills.
32、假定你是校学生会的一员,为了保护我们的地球家园,你发出了关于低碳生活的倡议,并制作了下面的海报。
请根据海报内容写一份100词左右的倡议书(题目已给出,除所给提示外,可适当增加细节)。