Scientists are aksing: What is the best way to fight climate change? A new study says: Plant many trees; one trillion trees, maybe more. Swiss scientists say there is enough room for that many trees. In their report in the journal Science, they say there is enough space on the earth, which could cover nine million square kilometers, an area the size of the United States.
Trees take carbon dioxide（二氧化碳）out of the air, and in return, put oxygen back into the air. The study estimated that over a long period of time, the trees could take in almost 750 billion tons of carbon dioxide from the atmosphere. That is about as much carbon as humans have put into the atmosphere in the past 25 years. What is so bad about carbon dioxide? The gas traps heat, causing temperatures to rise.
Much of the gain from planting trees will come quickly because trees remove more carbon from the air when they are younger, the researchers said. The place that has the best possibility for removing the most carbon is the tropics—the area close to the equator. This method would also have the lowest cost, says the study co-author Thomas Crowther, a climate change ecologist at the Swiss Federal Institute of Technology in Zurich. This is by far, the cheapest and the most effective climate change solution, he said. The six nations with the most room for new trees are Russia, the United States, Canada, Australia, Brazil and China.
Before his study, Crowther thought that there were other more effective ways to fight climate change besides cutting emissions（排放）. For example, people could change their diets by no longer eating meat. But, he said, tree planting is far more effective because trees remove so much carbon dioxide from the air.
1.The second paragraph mainly tells us _____.
A.how people plant more trees
B.why people should plant more trees
C.when people should plant more trees
D.where people should plant more trees
2.Which of the following statements is TRUE according to the passage?
A.Trees can’t remove the carbon in the tropics.
B.Trees are less helpful when they are younger.
C.There is enough space to plant one trillion or more trees on the earth.
D.People can only plant trees in Russia, the United States, Canada, Australia, Brazil and China.
3.What’s the best title of the passage?
A.More trees help fight climate change.
B.Carbon dioxide causes temperatures to rise.
C.Not eating meat is the best way to fight climate change.
D.Cutting emissions is the most effective way to fight climate change.
Teenagers who spend more time watching TV, using iPads and playing electronic games take longer to fall asleep and get poorer quality rest. A new study suggests the growth in use of electronic media devices by children could harm their physical and mental health.
The 16-19-year-olds were asked how much screen time they spent outside school hours, and on what activities, for any of six electronic devices: computer, tablet, smartphone, MP3 player, games console（游戏机）and TV. They were also asked questions about their sleep routine on weekdays and at weekends: when they normally went to bed and got up; how much sleep they needed to feel rested; and how long it took them to get to sleep. Girls spent longer on their computers chatting online while boys spent longer playing games on computers.
The study found poorer quality sleep was related to more time spent on such devices, and it often took more than an hour to drop off. Total daytime screen use of more than four hours was related to a 49 percent greater risk of taking longer than 60 minutes to fall asleep.
On average, the teens said they needed 8-9 hours of sleep to feel rested. But those who spent more than two hours emailing or chatting online were more than three times as likely to sleep for less than five hours. Those spending more than four hours in front of any screen were 3.5 times as likely to sleep for less than five hours. Computers were the device most likely to cause problems.
Dr Mari Hysing, of Uni Research Health, Bergen, said screen use may simply replace sleeping time or it may affect sleep by stimulating the nervous system. It is also possible that the light from electronic devices may affect a teenager’s body clock. “The recommendation is not to have a TV in the bedroom,” added Dr Mari Hysing.
1.What do boys prefer to do on the Internet?
A.They prefer to watch TV on computers.
B.They prefer to get solutions for homework.
C.They prefer to make friends with others.
D.They prefer to spend time on computer games.
2.The underlined phrase “drop off” in the third paragraph may mean “________”.
A.get up B.pay for
C.take over D.fall asleep
3.What will happen if children spend over two hours online?
A.They will suffer from lack of sleep.
B.They will sleep for over eight hours.
C.They will feel excited during daytime.
D.They will create a new body clock.
4.What does Dr Mari Hysing advise people to do?
A.change the children’s sleeping time
B.find ways to stimulate nervous system
C.make children sleep as they could
D.remove electronic devices from children’s bedroom
假定你是李华，你的美国朋友Lisa想要学习弹古筝，但是她的父母因怕影响她学习而不允许，她现在很难过。请你给她写封邮件，内容包括：
1. 给予安慰和理解；
2. 给出建议；
3. 表达祝愿。
注意：1. 词数100左右；
2. 可以适当增加细节，以使行文连贯。
参考词汇：古筝 guzheng
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假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者（从第11处起）不计分。
In July 1915, Henry and his eight-year-old daughter, Pearl, were thrilling at the company outing a next day. To be honest, was a really preciously chance for them to relax. However, that evening. Henry had a disagree with his landlord, result in a violent argument. Henry was so upset that he fell ill and was abandoned the plan to go on the trip. He and Pearl missed the ship, over 800 passengers on that lost their lives—except my future grandfather and mother. Thanks for that argument more than 100 year ago, I am alive today.
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Spirited Away is a popular and breathtaking masterpiece from Studio Ghibli 1. tells a young girl entering a magic world in order to save her parents who have been changed into pigs. The film focuses on Chihiro as she works in a mystical (神秘的) bath house and comes across magical beings.
China dropped the film into the theaters on June 21st, 2019, helping to realize Chinese audiences’ dream 2. (have) a look into this unique world on the big screen.
Spirited Away has received success during its time in both theaters 3. home video, even receiving an Academy Award for best picture in 2003. 4. addition, the movie itself was the 5. (high) grossing (总额) movie in Japan’s history. With this amazing showing, the movie managed to blow away some 6. (competitor) with Japanese audiences such as James Cameron’s Titanic and the animated hit, Your Name.
Studio Ghibli films are 7. (absolute) among Chinese audiences’ favorites. December, 2018 saw the Ghibli film, My Neighbor Totoro, which Chinese audiences had looked forward to 8. (watch), manage to be on show in China.
For all films entering the country, approval must 9. (give) by the country’s government and with a 10. (peace) relationship between the two countries over time, more Japanese movies are being introduced to China.
Last week, my friends and I got together to eat delicious Asian fusion chicken wings in our college town. We hadn’t all been ________ for a while, so it was nice catching up and sharing summer plans with each other.
These catch ups, ________, do not allow for deeper ________, especially if someone is ________ sharing personal troubles in a large crowd. After the dinner, three of us got desserts and boba drinks. I ________ that my friend, D, was hovering (徘徊) a bit, seemingly not intending to go as if he wanted or needed our ________ at that time.
Earlier that night during dinner, he also said his second year in college was really ________, so I asked him about his experience again. ________, this time the ________ gate of emotions (情感) opened. He shared with us problems with mental health he had been ________ throughout the year, his trouble with his academics and his relationship with his girlfriend.
My other friend and I ________ to leave, but I asked my friend if we could ________ and listen to D. We did, and we spent another thirty minutes listening to his ________ of mental health, pressure and ________. After our talk, D ________ a message to the both of us later saying he ________ our spending time with him and lending a(n) ________.
This experience showed me how being ________, attentive, and caring about a person can truly ________ their day. It doesn’t have to be a fancy gift. Instead, ________ to listen and care may sometimes be the best gift of all.
1.A.forever B.away C.apart D.together
2.A.instead B.therefore C.however D.besides
3.A.celebration B.conversations C.presentations D.combinations
4.A.uncomfortable B.shocked C.committed D.unreliable
5.A.insisted B.stated C.noticed D.predicted
6.A.response B.recommendation C.comprehension D.company
7.A.slow B.rough C.potential D.slight
8.A.Obviously B.By mistake C.Unluckily D.In return
9.A.flood B.snow C.wind D.sun
10.A.taking up B.deciding on C.dealing with D.burning out
11.A.hesitated B.rejected C.offered D.prepared
12.A.hide B.stay C.permit D.congratulate
13.A.plan B.idea C.version D.story
14.A.violence B.thirst C.anxiety D.starvation
15.A.sent B.received C.pushed D.lent
16.A.evaluated B.doubted C.appreciated D.considered
17.A.shoulder B.leg C.ear D.eye
18.A.persuasive B.mild C.voluntary D.observant
19.A.make B.get C.time D.earn
20.A.promise B.wish C.time D.chance
