微信扫一扫
随时随地学习
随时随地学习
1、Social media, like WeChat, ________ the way of communication nowadays.
A. are changing B. change
C. changed D. were changing
2、I borrow the book Sherlock Holmes from the library last week, ________ my classmates recommended to me.
A.that B.when
C.which D.where
3、“Geili”, created from the two Chinese characters “gei” and “li”, _______ a word only spoken in some dialects, but now it _______ something cool or exciting all over the country.
A. is used to being; used to describe
B. used to be; used to describing
C. is used to be; used to describing
D. used to be; is used to describe
4、 --Has Billy finished his homework today?
--I have no idea. He ______ it this morning.
A. would do B. was doing C. has done D. had done
5、Faced with the dilemma, the company committee ________ a public statement, appointing the capable man to be its new global chief financial officer.
A. pulled out B. put out
C. reached out D. drew out
6、— Do you have a minute, Lucy?
— Sure. ______
A. What’s up? B. Take your time.
C. Here it is. D. How come
7、New York State has passed a law requiring that all legal contracts _____ in simple, understandable English.
A. be written B. written C. to be written D. write
8、— I didn’t have time to read the book, so I just read a summary on the Internet.
— Be careful. If you _________ now, you’ll regret it later.
A. cut corners B. fly off the handle
C. laugh your head off D. sleep like a log
9、A cool drink will make you feel ____ in a hot summer day.
A. good B. well C. bad D. badly
10、 —How do you find your missing pen?
—Wow,________.
A. It writes well
B. Quite by chance
B. It lies in my drawer
D. It was kept by my grandfather
11、The new hospital will be located in used to be a wasteland and a huge shopping mall will also be constructed there used to be a school many years ago.
A．where; where
B．what; in which
C．what; where
D．which; where
12、He is _________ to being a professor.
A．in the way
B．in some way
C．on the way
D．in a way
13、_____ you choose, you must stand by your decision.
A. Wherever B. Whenever C. However D. Whichever
14、China National Women's Volleyball Team made great achievements, ______ them a symbol of the spirit of China.
A.to make B.having made C.made D.making
15、 __ carefully if any change occurs when doing experiments in the lab.
A．Observe
B．To observe
C．Observed
D．Observing
16、 Sorry to have kept you waiting so long, but it’ll still be some time ______ Mr. Smith is available.
A. when B. before C. after D. since
17、California is home to 4,426 species of plants, and nearly half of ________ are found nowhere else.
A．which
B．them
C．what
D．that
18、His study in Peking University lasted four years, ______ he founded his own company in Hong Kong.
A. after which B. after when
C. after that D. after it
19、The method seemed to work, as I gained the respect of my ________, peers, and subordinates.
A．alumni
B．interns
C．colleagues
D．seniors
20、If we a table earlier, we couldn’t be standing here in a queue.
A. have booked B. had booked
C. book D. booked
21、Thermoelectric generators (热力发电机) turn waste heat into electricity without producing greenhouse gas emissions, like a free lunch. But the high cost of these devices has prevented their widespread use. Now, researchers have found a way to make cheap thermoelectrics that work just as well. The work could pave the way for greener car engines, and other energy-generating devices.
“This looks like a very smart way to realize high performance,” says Li-Dong Zhao, a materials scientist. He notes there are still a few more steps before these materials can become high-performing. However, he says, “This will be used in the not too far future.”
Thermoelectrics are semiconductor devices placed on a hot surface. That gives them a hot side and a cool side. If a device allows the hot side to warm up the cool side, the electricity stops flowing. A device’s success at preventing this, as well as its ability to conduct electrons, feeds into a score known as the figure of merit (优值系数), or ZT.
Researchers have produced thermoelectric materials with increasing ZTs. The record came in 2014 when Mercouri Kanatzidis came up with a tin selenide (硒化物) with a ZT of 3.1. Yet the material was too fragile to work with. “For practical applications, it’s a non-starter,” Kanatzidis says.
Getting through that door will still take some time. The tin selenide the team makes is mixed with Na, creating a “p-type” material that conducts positive charges. To make working devices, researchers also need an “n-type” version to conduct negative charges.
Zhao’s team is now working on making an n-type version. Once successful, researchers should have a clear path to making a new generation of super-efficient thermoelectric generators. Those could be installed everywhere from automobile exhaust pipes to water heaters and industrial smelters to scavenge some of the 65% of fossil fuel energy that winds up as waste heat.
【1】What is the first paragraph mainly about?
A．The wide use of thermoelectric generators.
B．The inventors of current thermoelectric generators.
C．The reason why researchers make cheap thermoelectrics.
D．The greener ear engines that contribute to environmental protection.
【2】How does Li-Dong Zhao feel about cheap thermoelectric generators?
A．Indifferent.
B．Worried.
C．Critical.
D．Positive.
【3】What do you know about the research in 2014 from paragraph 4 and 5?
A．It was far from a success for practical applications.
B．A tin selenide with a ZT of 3.1 can be easy to work with.
C．Researchers made an “n-type” version to make working devices.
D．A “p-type” material made from the tin selenide conducts negative charges.
【4】What does the underlined word “scavenge” in the last paragraph mean?
A．Produce.
B．Recycle.
C．Spot.
D．Increase.
22、 Several years ago,our family rented a house that had a basement apartment under ours.The young couple who lived below us were quiet and modest.Their dog,however,was not.
Cody was an outgoing black dog with a big tail.He loved to greet us by planting his huge paws on our chest.Our dog Tasha has a similar characteristic.Because she shared the yard with Cody,they soon became good friends.
We often saw a ball of black and white fur as they raced neck and neck toward some unlucky bird that had just landed in the yard.The only time I saw any conflict between the two dogs was when we fed Tasha Cody would jump up.expecting to share Tasha's food.However,Tasha would bark fiercely.Cody would change his strategy,dropping to his belly and moving slowly toward Tasha's dish.But this friendly behavior did not impress Tasha . The closer Cody got,the louder Tasha shouted.Finally.Cody would slip away with his tail between his legs-until next mealtime. Then Cody,ever the optimist,would replay the scene.with the same disappointing conclusion
One day my husband Jeff came home quite upset .He had just found Cody lying by the side of the road.killed by a speeding truck.Tasha cleaned Cody' s smooth black fur with her nose and mouth and whined(R).Over the next few weeks.Tasha was in low spirits with her tail between her legs.She obviously missed her old friend.
At the same time,Tasha's dish disappeared.We replaced it with another,only to have that one disappear as well.There followed a steady succession(连续）of bowls,plates,even an old coffee can.They all disappeared Finally,the mystery was solved when our neighbor knocked on our door,her arms loaded with the missing dishes,some still half-full of dog food.
＂Are these yours?"she asked.When Jeff and I nodded,she explained,"l saw Tasha headed toward the road,so I followed her.Then I noticed all these dishes in a pile."
Puzzled,I asked,"Where were they?"
“Well,you know,"she answered thoughtfully,Fit was right by the place where Cody died. Isn't that strange?Surely Tasha couldn't..."Her voice turned down in confusion.
Jeff and I exchanged glances.Has Tasha been begging her old friend back by offering him the one thing she refused to give him when he was alive?Even today,retelling the story makes me feel sad.It raises questions about animal’s intelligence and emotions.It also reminds me that I need to share whatever blessings I've received with others---before it's too late.
【1】We can learn from the passage that Tasha
A.was an outgoing white dog
B.lived in a basement apartment
C.was pot friendly to the young couple
D.was the enemy of Cody due to the yard
【2】A dog often feels disappointed or sad when
A.dropping to the belly
B.barking fiercely
C.putting the tail between legs
D.cleaning fur with its mouth
【3】In the author's opinion,why did Tasha move its food away?
A.Because it wanted to hide it for herself.
B.Because it wanted to hide it for Cody.
C.Because it wanted to show Cody what it had.
D.Because it wanted Cody to come back to life.
23、The 4 Best Online Shopping Websites of 2020
Amazon
What We Like
► Dependable delivery and customer service.
With millions of offerings to choose from, Amazon has evolved from a small bookstore to a mammoth （庞大 的）Internet presence. The company not only brings you millions of items from its own warehouses but also from sellers all over the world who can upload their own wares for sale. That makes it possible for you to compare prices at a glance from a host of stores and individual sellers.
eBay
What We Like
► Great avenue for getting rid of unwanted stuff.
Originally started to supplement a Pez collection, eBay has grown into the world's largest online auction （拍 卖）site. You can find pretty much anything here, and even you can become an eBay seller to get some cash for your unwanted items.
Etsy
What We Like
► Find figurative and literal items not seen anywhere else.
Etsy is a global marketplace that offers goods from incredibly talented artists around the world. Anything from homemade soaps to crystal necklaces and black apples can be found here, and often good deals, too. Google Shopping What We Like
► Track price changes to get the best deal.
One of the most overlooked and quite powerful ways to shop at multiple popular stores at once is with Google Shopping. Just type whatever you're wanting to order online, and Google Shopping will show results from dozens of stores throughout the world.
【1】If you feel like buying a second-hand camera, you should shop on.
A.Amazon B.eBay C.Etsy D.Google Shopping
【2】What can we know about the four websites?
A.Online customers can bid for what they want to buy on Etsy.
B.Google Shopping sells some unique stuff not seen anywhere else.
C.Amazon has its own warehouses and reliable delivery and service.
D.Consumers can shop at multiple popular stores at once with eBay.
【3】What do those websites have in common?
A.Their stores are from all over the world.
B.Customers can exchange unwanted items.
C.Price changes can be tracked by consumers.
D.Sellers can upload their own goods for sale.
24、Several U.S. cities have introduced taxes on drinks with added sugar in order to reduce consumption, but new research suggests these policies currently have one deadly flaw.
The study found that sugary drink taxes only reduce purchasing if price labels at stores mention that consumers are paying that tax when they buy the drink. "If cities want these policies to be effective, they need to regulate how these sugary drinks are labeled at stores-and they currently don't do that," said Grant Donnelly, lead author of the study and assistant professor at The Ohio State University.
The research included a field study at two convenience stores in San Francisco, which currently has a tax on sugary drinks of 1 cent per ounce. Researchers varied the price labels placed on the sugary drinks over the eight-week study: One that simply said the price for the 12-ounce drink（$1.52）; one that had the price and the message "Includes SF Sugary Drink Tax"; and one that included the same message and added that the tax would support local university student programs.
The researchers compared sales of the drinks during the study period to the two immediately previous weeks. During this time, the sugary drink tax was in effect, but there were no price labels on any drinks. They also compared sales to the two years before the tax was: in effect.
Results showed the share of sugary drinks bought when the labels simply showed the price was not significantly different from the two-week period before the study. But the share of sugary drinks purchased did decline when the labels mentioned the price included the added tax. Labels that noted where the taxes would be spent had no significant effect beyond the labels that simply noted the added tax.
Another study found that when consumers were told the tax was only 12 cents, they reported they were much more likely to still purchase the drink. "People don't like taxes, but they think this tax is much higher than it actually is, "Donnelly said." If you tell consumers the true cost of the tax, it is no longer effective in reducing purchases. If cities want these policies to be effective, they must require that labels mention the added tax but not reveal how much it is."
【1】What is the current problem with the sugary drink tax?
A．There are no measures to cut taxes.
B．It is not well received in stores.
C．It doesn't have the satisfactory effect.
D．Customers refuse to pay the taxes.
【2】What are Paragraphs 3 and 4 mainly about?
A．The way of conducting the study.
B．The process of collecting the related data.
C．Increasing the sales of sugary drinks before the tax.
D．Comparing sales of sugary drinks before and after the tax.
【3】Which of the following labels reduced sales of sugary drinks?
A．The label showing the price of the drinks.
B．The label showing how much the tax is.
C．The label showing what the tax is used for.
D．The label showing the price included the added tax.
【4】What can we learn from the last paragraph?
A．The government should raise the tax on sugary drinks.
B．Showing the amount of tax on the labels is helpful.
C．Most people don't know that sugary drinks are taxed.
D．People overestimated how much sugary drinks are taxed.
25、After my mother died, my father, who was 75 at the time, began to regularly visit the local library in Epping. The library had a small area, where the soft carpet, folding chairs and lap desks _________ a comfortable space for independent reading. My dad would sit there for hours. This particular wintery Saturday, at about 12 noon, after being there for two hours, my dad _________ that it was very quiet and darker than usual. He looked around, realizing that all the staff had left and he had been _________ locked in.
My dad was a “panic merchant” at the best of times, so I can only _________ what he was like when this happened. The doors had been locked from the outside and he had no way out. He must have felt completely at a _________, since he didn’t know some tips for handling this kind of crazy situation. My dad looked at the notice boards to try to find a _________ phone number—a staff member or someone he could ring to help let him out—but without _________. So he rang the police station and they kindly got in touch with the head librarian.
The head librarian immediately rang my dad back at the library, and _________ that she would be soon there. She tried to _________ him and even explained how he could make a coffee if he wished. This was very nice, but my dad was in too much of a “__________” to do so.
Thankfully, the head librarian arrived within the hour and let my dad out. She apologized for the __________ it had caused my father and sent my father back home in person. We were very grateful, since she could easily have been __________ at having to come back to work. The next day my dad seemed to __________ from this accident. He almost forgot all about the unpleasantness, and even found his experience quite __________.
I guess the entire staff now makes extra sure that the library is empty before they leave. What’s more, my dad has learned an important lesson by himself—never again became quite so __________ in his reading.
【1】
A．measured
B．occupied
C．replaced
D．created
【2】
A．expected
B．noticed
C．admitted
D．doubted
【3】
A．accidentally
B．constantly
C．properly
D．illegally
【4】
A．acquire
B．witness
C．imagine
D．explore
【5】
A．failure
B．loss
C．risk
D．distance
【6】
A．convenient
B．flexible
C．relevant
D．temporary
【7】
A．trouble
B．effort
C．permission
D．success
【8】
A．promised
B．informed
C．assumed
D．reminded
【9】
A．forgive
B．comfort
C．instruct
D．persuade
【10】
A．result
B．choice
C．state
D．trend
【11】
A．conflict
B．anxiety
C．regret
D．blame
【12】
A．ashamed
B．confused
C．annoyed
D．pleased
【13】
A．recover
B．reflect
C．struggle
D．suffer
【14】
A．satisfying
B．amusing
C．scaring
D．astonishing
【15】
A．distributed
B．blocked
C．absorbed
D．exposed
26、假定你是学校英文报记者李华，近期你校正在举行创建美丽校园活动，请你以"Beautiful Campus，Better Life" 为题，写一篇新闻稿报道本次活动。
内容包括∶1. 活动目的；2.活动内容∶创建环保与文明校园；3. 师生评价
注意∶1. 词数80左右，标题不计入总词数；2.可以适当增加细节，以使行文连贯。
Beautiful Campus, Better Life
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
邮箱： 