Vinegar makes salad，fries and dumplings taste better， and you can even use it to clean your windows． And now， according to scientists， it may even the planet's population survive climate change．
Researchers from the RIKEN Center for Sustainable Resource Science （CSRS） in Japan found that growing plants in vinegar makes them more resistant to droughts． This could mean that in the future， worries about climate change affecting the world's supply of food will be much lower． The discovery was made after the researchers studied the Arabidopsis， a plant known for its ability to survive in dry weather． It was found that when the plant was placed in drought﹣like conditions， it produced a chemical called acetate（醋酸盐）﹣the main component of vinegar．
After discovering this， the scientists experimented further by adding acetate to the soil of other plants， before they stopped giving them water completely． After leaving the plants for 14days， they found that the ones treated with acetate had survived， while the untreated plants had dried up and died．
It's hoped that this simple method of survival could soon be used to help farmers in dry countries keep their crops alive． "In the experiment， we targeted the staple foods of the world﹣rice， wheat and maize﹣and the basic plant of breeding species， rapeseed（油菜籽），" Jong Myong Kim， co﹣author of the study， told Popular Science magazine．
Kim also told the magazine he's already been in touch with people all over the world who are interested in trying this simple and cost﹣effective method out for themselves from flower growing companies to amateur gardeners． Although at this point keeping thirsty plants alive isn't as easy as just pouring vinegar over them， Kim said he and his team are working on making the process as simple as possible． "Now we are trying to cooperate with some farmers， and also some companies， to make a method to apply this system， "he said． And for those of us who always forget to ask our neighbors to water our plants when we goaway， hopefully this means the end of returning home from a trip to find our favorite flowers have died．
1.What is the article mainly about？
A.The world's food supply will be increased．
B.Plants better survive droughts．
C.The Arabidopsis is resistant to droughts．
D.Vinegar could be used to fight droughts．
2.It was discovered that acetate can ．
A.be used by farmers to replace soil
B.only be produced by the Arabidopsis
C.help plants survive dry conditions
D.be used to improve poor soil
3.What are the target plants of the experiment？
A.all breeding species．
B.wheat and Arabidopisis．
C.rice and maize．
D.rapeseed and Arabidopisis．
4.Jong Myong Kim's experiment of trying out the method ．
A.can make people's trips pleasant
B.turned out a worldwide success
C.is as simple as pouring vinegar over the plants
D.appeals to many flower growing companies
When I recently revealed to my friends, colleagues, and family members that I would be moving my family to Israel, the reactions were numerous and varied. Some people said it was an expected thing while others asked: Why now? What will you do?
For me, making the move to Israel is the fulfillment of a dream that has lasted for my 47 years of life. I have always known that Israel is my home. Over the years Israel has been in my heart, but I have found a number of reasons to put off making it my permanent residence: kids, the economy, education… you name an excuse, and at some point I have probably used it.
Truthfully, I believe that I was always just a little bit scared. And of course I still am, with the fear factor that is reported by the press surrounding the Israeli military and economy. However, it has come to the point when I have realized that for over 2000 years we have longed for this land, and that for 47 years I have denied the opportunity to make it my home. I am finally ready to fully grasp this opportunity.
Over the years, I have always loved visiting Israel. I have traveled there with my family, and enjoyed introducing thousands of travelers to the country. I have come to love all of these things about Israel as a tourist because I get to love my home. And as far as waiting for the “perfect” condition under which to make aliyah, I believe the time is now!
I have been asked many times if I am nervous about moving to Israel. Before I answer, I remember that we have overcome the Greeks, the Romans, the Russian killings, Hitler and the Holocaust(大屠杀)，and the armies of seven countries.
How can I not feel confident that I , and my family, will overcome any difficulties that may come our way? I am not worrying, complaining, crying, or fearing as I prepare to make aliyah. I am proud and excited to say that I am fulfilling a 47-year-old dream: I am going home.
1.What does the author want to say in the passage?
A.His dream is to come true after 47 years.
B.It is a dilemma for him to return to Israel.
C.He didn’t live a happy life in Israel.
D.It is a latest trend to fulfill everyone’s dream.
2.The author didn’t return to Israel before because_________.
A.his children mainly held him back
B.he failed to get determined
C.he didn’t save enough money
D.he hoped to finish his education
3.What does the underlined part “make aliyah” mean in the passage?
A.To return to Israel.
B.To make a decision.
C.To live happily.
D.To catch a chance.
4.It can be inferred from the passage that ______.
A.the author will be happy to meet his relatives in Israel
B.Israel is a familiar word but a strange place for the author
C.the Israeli suffered a lot in the history
D.Israel is still a place between wars and chaos
Every man dreams of having a good car. With luxury cars, like Bentley, Lamborghini and Rolls-Royce, going into the world of SUVs, if you have deep pockets, you will be spoilt for choice.
◆Lamborghini Aventador SVJ
Using a new aerodynamic system allows it to set a car lap record of 6: 44 97 at Nurburgring, one of the longest and most challenging circuits in the world. Plus, carbon fiber can be seen everywhere, which makes the car strong and lightweight. There’re only 900 being built and you’11need to cough up $517, 770 to buy one.
◆Aston Martin DBX
The DBX is Aston Martin’s maiden SUV product. It features a choice of two gas engines—a 4.0-liter V8 from Mercedes and a 5.2-liter V12 from its own. The price is predicted to be around $250, 000.
◆Audi E-tron
Being an eco-friendly motoring. it is an all-electric SUV that makes up for its rather ordinary appearance with design, luxury and technology. At the front and back are electric motors which insure progress is rapid. In addition to plenty of storage space, the Audi E-tron provides side cameras instead of side mirrors and air suspension that adapts to the terrain (地 形). Hand over $74, 800 and it’s yours.
◆Tesla Roadster
Tesla Roadster will turn most heads, Zero to 60 in 1.9 seconds means it will leave most cars for dust. The top speed is 250 mph, which is also unheard of for most cars—let alone an a11-electric one. Having advanced autonomous driving systems and a huge touchscreen for surfing the Internet, it won’t make you regret for paying $200, 000.
1.What’s special about Lamborghini Aventador SVJ?
A.It offers two gas engines. B.It is an all-electric SUV.
C.It uses lightweight materials. D.It has the most challenging circuit.
2.Which car is suitable if you want one with adaptable air suspension?
A.Lamborghini Aventador SVJ. B.Aston Martin DBX.
C.Audi E-tron. D.Tesla Roadster
3.Which of the following does Tesla Roadster provide?
A.Self-driving systems. B.A gas-saving engine.
C.Side cameras. D.Much storage space.
假定你是李华, 夏至将近, 中国有“冬至饺子夏至面”的传统，请写信邀请你校外教Andy参加你班举行的制作面条活动。内容包括：
1.时间和地点；
2.活动安排；
3.期待答复。
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：夏至the summer solstice
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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。
As it is known to all, China is the home of tea. It has been spread from China to world. With a historic of four or five thousand years, tea culture has been an important part in Chinese culture. Wherever guests visit, it is a custom to serve tea with them. Drinking tea had a lot of advantages, one of which is to help you refresh yourself and improves thinking ability. Beside, drinking tea every day is said to be able to help you keep health and live longer. What's most, some kinds of tea can even help people lose weight and become beautiful, which may appeal to a lot of lady.
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.
Kip Keno, an untrained Randi tribesman, was already 28 years old when he made his second Olympic 1.（appear）at the 1968 Mexico City Games. Suffering from violent stomach pain 2. （cause）by a gall bladder(胆囊)infection, Keno entered the 10, 000 m. He was running with the leaders when, with two circles 3. （go）, he doubled up with pain and fell onto the field. He jumped back up and finished the race 4. was canceled the qualification for leaving the track.
Four days later, he earned a silver medal in the 5, 000 m, 5. （leave） Mohamed Gammon of Tunisia behind by narrowly a metre. In the 1,500 m, Keno tried to defeat the finishing kick of the favourite, Jim Ryan, by building up a huge lead. His strategy worked and he 6. （win）by 20 m, the largest advantage of victory in the history of the event.
In 1972, Keno entered the steeplechase(障碍赛)in 7. he had little experience. Still, he was able to defeat teammate Ben Jericho and won another gold medal. Six days 8. this victory, he added a silver medal in the 1, 500 m. Keno and his wife, Phyllis, 9.（eventual）established a children's home and school for homeless 10.（teenager）.
