Winter begins in the north on December 22nd. People and animals have been doing what they always do to prepare for the colder months. Squirrels (松鼠), for example, have been busy gathering nuts from trees. Well, scientists have been busy gathering information about what the squirrels do with the food they collect.
They examined differences between red squirrels and gray squirrels in the American state of Indiana. The scientists wanted to know how these differences could affect the growth of black walnut (黑胡桃) trees. The black walnut is the nut of choice for both kinds of squirrels. The black walnut tree is also a central part of some hardwood forests.
Rob Swihart of Purdue University did the study with Jake Goheen, a former Purdue student now at the University of New Mexico. The two researchers estimate that several times as many walnuts grow when gathered by gray squirrels as compared to red squirrels. Gray squirrels and red squirrels do not store nuts and seeds in the same way. Gray squirrels bury nuts one at a time in a number of places. But they seldom remember where they buried every nut. So some nuts remain in the ground. Conditions are right for them to develop and grow the following spring. Red squirrels, however, store large groups of nuts above ground. Professor Swihart calls “death traps for seeds”.
Gray squirrels are native to Indiana. But Professor Swihart says their numbers began to decrease as more forests were cut for agriculture. Red squirrels began to spread through the state during the past century.
The researchers say red squirrels are native to forests that stay green all year, unlike walnut trees. They say the cleaning of forest land for agriculture has helped red squirrels invade Indiana. Jake Goheen calls them a sign of an environmental problem more than a cause.
1.The study done by Rob Swihart and Jake Goheen is to ________.
A.find out the living conditions for squirrels
B.learn squirrels’ influence on black walnut trees
C.do something to get rid of squirrels
D.save the forests in the American state of Indiana
2.The difference between gray squirrels and red squirrels mainly lies in ________.
A.the way they gather the walnut
B.the time they have winter sleep
C.the place they have winter sleep
D.the place they store the walnuts
3.When Professor Swihart says “death traps for seeds”, he actually means that ________.
A.red squirrels eat more nuts than gray squirrels
B.gray squirrels and red squirrels will have severe fights
C.nuts above the ground will not develop into plants
D.seeds can be traps for other animals in the forest
4.According to the passage, which of the following is true?
A.The black walnut is equally attractive to both gray and red squirrels.
B.Gray squirrels do more harm to the forest than red squirrels.
C.Red squirrels and gray squirrels have helped the spread of walnut trees.
D.The cleaning of forest land benefits red squirrels directly.
难度: 中等查看答案及解析
Weekly culture& leisure(娱乐) guide （April 17-21)
Superstars of modern Chinese ink art shine in Nanjing
9:00-12:00, Monday; 9:00-17:00, Tuesday to Sunday
Nanjing Museum,Zhongshan Donglu, Xuanwu district, Nanjing
025-8480-7923
The exhibition presents 158 signature works by eight of the most influential ink painting masters of modern China, including Qi Baishi (1864-1957), Pan Tianshou (1897-1971), and Xu Beihong (1895-1953). Their works are officially rated as national treasures, and their painting styles and artistic thoughts have had a far-reaching impact on younger generations of Chinese ink painters.
Wu Guanzhong's grand survey exhibition at Tsinghua Art Museum
9:00-17:00, Tuesday to Sunday
NO. 1, Tsinghua University Campus, Haidian district, Beijing
010-6278-1012
Regarded as one of the most forward-looking artists in China, Wu first attended the China Academy of Art in the 1930s in Hangzhou, East China's Zhejiang province, and then lived and studied in France, where he was exposed to different art movements in Europe.
The exhibition ends on May 3, 2020.
Rhinoceros in Love celebrates its 20th birthday in Beijing
Apr. 10-March 5
Fengchao (Honeycomb) Theater, No 3, Xinzhongjie, Dongzhimenwai Dajie, Dongcheng district
86-10-6416-9253
Acclaimed as "the bible of love for young people", Rhinoceros in Love by China's avant-garde theater director Meng Jinghui will be staged in Beijing from Feb. 10 to March 5 to celebrate its 20th birthday since its 1999 premier in the Chinese capital.
As one of Meng's beloved experimental works, the play tells a triangle love story in which a young man named Ma Lu is falls in love with a woman named Mingming and tries everything he can to win her heart. But after he fails, Ma, like a stubborn rhinoceros(犀牛), goes to an extreme by kidnapping Mingming in the name of love.
1.You can call 010-6278-1012 for more information about_______.
A.Wu Guanzhong's exhibition B.A newset movie
C.Rhinoceros in Love birthday celebration D.Morden Chinese ink art show
2.You can go to Wu Guanzhong's at Tsinghua Art Museum on_________
A.June 1st 2020 B.December 12th 2019
C.July 7th 2020 D.April 20th 2020
3.Which of the following statement is TURE?
A.You can only see three famous ink painting masters’ works at the exhibition in Nanjing Museum.
B.Wu Guanzhong lives in Beijing all his live.
C.Wu Guanzhong's exhibition is at Tsinghua Art Museum
D.In Rhinoceros in Love, Mingming stubbornly in love with Ma Lu.
难度: 简单查看答案及解析
Life in the Internet age is lonely—or is it? That's what experts in human interaction（交往）are debating（争论) after a new Stanford University survey has been published.
According to the study, the more time people spend online, the less they can spare for reallife relationships with family and friends. The researchers asked 113 people about the Web's influence on daily activities. 36% of those people are online for more than five hours a week. "As Internet use becomes more widespread, it will have an increasingly isolating(孤立的) effect on society," says Robert Kraut, one of the researchers.
Scholars (学者)and Web lovers criticized（批评）the study for stretching its data to make the "isolating" point. While 13% of regular Web users admitted the loss of time with loved ones, 60% reported watching less TV. The survey also shows that email is the most popular online activity. If some of webheads(网虫) spend what was once passive TV time keeping company with friends via emails, "that's a move towards greater connectedness," says Paul Resnick, a professor at the University of Michigan.
This isn't the first claim that the Web should be criticized. A 1998 report monitored 73 Pittsburgh-area families' Net use for a year. People who used the Internet more "talked less to family members and reported being lonelier and more depressed," says Robert Kraut.
"It's true that there have been big declines in social connectedness over the past decades, but those declines began before the Internet was invented," says Thomas Putnam.
As Amitay Etzioni says, the Internet gives us a different kind of social life—not better or worse than before, but just different.
1.Who claimed that the Web had negative influence?
A.Robert Kraut. B.Paul Resnick.
C.Thomas Putnam. D.Amitay Etzioni.
2.The underlined word "This" in Para. 4 refers to _______.
A.the study conducted by Stanford University
B.the survey made by the University of Michigan
C.the conclusion in a report written in 1998
D.the opinion expressed in Bowling Alone
3.From the passage we learn that _______.
A.watching TV used to take time away from staying online
B.36 % of Web users spend more than five hours a week online
C.the Web was blamed more than once for causing an isolating effect
D.the Web has the same influence as telephones and televisions
难度: 中等查看答案及解析
I don’t realize that I’ve been at college for nearly one and half year until now. Looking back into the last year, what shall I say? It consisted of both happiness and sadness. Life always goes like this, up and down, as is so exciting. Now when I recall the past, no matter how I felt at that time, they are all treasures for me.
That was the moon festival last year, which was also the first time we went out after we entered the college. It was said that the sea in Dalian was well-known and was also a wonderful place to watch the moon. After getting all the food and drinking ready, we four girls set off for the seaside. There were many people and we picked up a less crowded beach. At first, we enjoyed ourselves by drinking and eating. When the moon turned brighter, we played with the seawater. As a result, we were all drenched with water. Bathing in the moonlight, we ran and laughed. We seemed to land on another world, where was full of fresh air, laughter and love. The laughter is still echoing(回响) on my mind so far.
Life doesn’t stay the same, occasionally having a particular taste. That is sadness. What impressed me deeply is a failure in a singing competition. It was the first time I had given a performance on such a large stage in front of so many people. I was so nervous that the whole song was performed out of tune. As you could imagine, I was greeted with boos from the audience. I still remembered how dismal I felt that moment and I sat alone crying at the seaside. After that, I talked to mother about it. She told me that it was not a failure; at least, I was brave enough to show myself publicly.
Everything has passed. I’ve stored them at the bottom of my heart. I am in the second grade already. Yet much needs me to challenge. On the way, there's both happiness and distress. However, I will go ahead just all the same.
1.The author of the text is ______.
A.a boy B.a girl
C.the passage doesn’t say D.none of the above
2.The underlined word “drenched” in the second paragraph has a similar meaning with ______.
A.dried B.wet
C.frozen D.washed away
3.Life, according to the author, is ______.
A.full of happiness B.filled with sadness
C.made up of laughter and tears D.not worth living
4.How did the audience find the author’s singing?
A.It was wonderful B.It was disappointing
C.The passage doesn’t say D.It was perfect
5.Which of the following shows the author’s attitude towards future?
A.A friend in need is a friend indeed.
B.Do wrong once and you’ll never hear the end of it.
C.Where there is a will, there is a way.
D.Time and tide wait for no man.
难度: 中等查看答案及解析
As you're busy with your studies, the weeks during the Spring Festival can be a time when training and healthy eating plans go out of the window. But you can continue running and avoid weight gain during the holiday season. 1.
Pick a race
Having a race on your calendar (日历) is a motivation（动机） to keep running during the holiday. 2. Check our active.com or Running in the City for events near you.
Don't skip breakfast
If you're going to a holiday party in the evening, don't make the mistake of skipping breakfast.You may think you're saving calories for later. 3.
Bring your own healthy dishes
Chances are that most of the dishes at holiday gatherings are going to be high in taste and calories. Bring your own healthy appetizers(开胃菜) to the party. The host will appreciate it, and you know there will be at least one wise choice on the buffet table.
4.
If you're heading to an evening event, eat regular(规律的) meals and snacks every few hours up until party time. You won't arrive at the party ready to attack appetizers. Make sure you include fiber at each meal because it keeps you full longer.
Plan your runs
It's easy to say that you'll keep running regularly during the holiday season, but sticking to it requires a strategy. Schedule your runs like appointments, so you make them the first thing during a busy week. 5.
A.Treat yourself
B.Eat small meals
C.Try some or all of these strategies (策略)
D.In fact, it may lead to overeating later in the day
E.Buy yourself a gift of some new running shoes and clothes
F.Once you choose one that is in a few weeks, set a plan and stick to(坚持) it
G.If you have runs scheduled, you are more likely to get them done
难度: 中等查看答案及解析
There lived a washerman named Bob in a village. He had two _________, a donkey named Bhola and a dog named Moti. Moti was used to ___________ Bob's house and Bhola was used to carry the __________ to the river and back home.
One night,when everyone was __________, a thief entered the house. Moti saw him but didn't bark. On ___________ this, Bhola asked Moti, "You saw the thief and still didn't bark. What is the ___________?"
Moti replied, "You don't have to tell me about my __________. I've been taking care of this house for a long time. But our master doesn't seem to __________ this. He gives me less food and doesn't __________ me well. If I allow this thief to __________, at least our master will understand my worth.
Bhola said, "Don't act like a(n) __________. This is not the time to prove your worth. This is the only time when you can act and protect our master's house. __________ wasting time and wake our master immediately."
However, Moti didn't listen to Bhola. He replied, "Why should I __________ when he has no respect for me? I'm not going to __________ him. If you want,you can do that."
Bhola shouted at him, "You are so __________ You have no gratitude(感激) towards our master. Anyway, I respect our master and I'll warn him about the thief."
Bhola started shouting loudly. Hearing his __________, Bob woke up. Seeing all this, the thief ran away quickly. Bob __________, but he couldn't find anybody. Bob got __________ that Bhola had disturbed his sleep for no reason. He started beating Bhola with a stick. Bhola was left with a lot of __________ all over his body. However, it should be remembered that not all the __________ are right.
1.A.managers B.neighbors C.partners D.animals
2.A.clean B.build C.protect D.decorate
3.A.clothes B.stones C.goods D.fruits
4.A.weak B.asleep C.silent D.tired
5.A.seeing B.smelling C.planning D.hearing
6.A.mistake B.question C.difficulty D.reason
7.A.abilities B.thoughts C.responsibilities D.items
8.A.make B.take C.ignore D.understand
9.A.treat B.wish C.serve D.teach
10.A.cut B.steal C.climb D.settle
11.A.fool B.thief C.hero D.enemy
12.A.Fancy B.Risk C.Stop D.Allow
13.A.wait B.mind C.care D.run
14.A.wake B.believe C.accept D.save
15.A.boring B.stupid C.clever D.interesting
16.A.argument B.explanation C.advice D.noise
17.A.tried out B.kept on C.looked out D.came on
18.A.fearful B.angry C.nervous D.ashamed
19.A.colors B.injuries C.secrets D.covers
20.A.suggestions B.answers C.efforts D.punishments
难度: 中等查看答案及解析
请你修改以下的每个句子，每句有1处语言错误，错误涉及一个单词的增加或修改。
增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。
修改：在错的词下面划一横线，并在横线下面写出修改后的词。
注意：每处错误及其修改仅限一词。
1.It is I who often helps you with your English.
2.The judge ordered that the killer should being punished.
3.Between the trees stand a old man.
4.Do you wake up every morning felt energetic and ready to start a new day?
5.We managed arrive at the school in time.
6.If she is coming or not doesn’t matter too much.
7.The suggestion that we should went to picnic on Sunday was agreed.
8.He talked a lot about things and persons which they remembered in the school.
9.He was the first guest arrive.
10.I apologize for not wait for you.
难度: 中等查看答案及解析
假设你是李华 , 你们班本周末决定去野生动物园（wildlife zoo）郊游，请给你们的外教Mike写一封电子邮件，邀请他参加。
邮件的内容包括：
1. 集合的时间、地点
2. 活动的内容：野餐、游戏等
3. 提醒事项：着装舒适、自备食物
注意：100词左右，可适当增加细节以使行文连贯。
Dear Mike,
________________________________________________________________________________
Yours,
LiHua
难度: 简单查看答案及解析