Plants are boring. They just sit there photosynthesizing （光合作用） while animals have all the fun. Right? Not so much. A new study has found that there is a long history of interactions between ants and plants. The ant and plant co-evolution （协同进化） started with ants feeding on plants and plants evolving ant-friendly features.
Plants make a number of different structures that are specific for ant use. Some plants have evolved features that persuade ants into defending them from attack from other insects and even mаmmаlѕ. Тhеѕе іnсludе hollow thorns that аntѕ will live іnѕіdе, or ехtra nесtаr (琼浆) оn lеаvеѕ or stems for the ants to eat. Some ants will just cheat and take the nectar and run, but some will stick around and attack anything that tries to hurt the plant. Other plants get ants to help them move their seeds around, by providing them with rich food packets attached to the seeds. The ant will pick up the seed and carry it away, eat the food packet, and leave the seed - often in a nutrient-rich area where it'll grow better, and since it's farther away from its parent, they won't have to compete for resources.
But scientists weren't sure how the evolutionary relationship between ants and plants got started. If evolution is an arms race between species developing ways to make use of their neighbors, then scientists wanted to know whether plants or ants fired the first shot. It was a chicken-and-egg question, whether things started with ants developing behaviors to take advantage of plants, or plants evolving structures to take advantage of ants.
The history of ants and plants evolving together goes back to the time of the dinosaurs, and it's not easy to tell from fossils who fired the first shot. However, it is a question of little significance. Scientists say their study maters because it provides a look at how these widespread and complex interactions evolved.
1.Some plants attach food packets to their seeds in order to .
A.reward the ants B.make a fool of ants
C.provide nutrition for the seeds D.get the seeds moved around
2.What does Paragraph 2 mainly tell us?
A.How plants and ants interact. B.What ants do to protect plants.
C.How plants and ants survive attacks. D.Why plants and ants need co-evolution.
3.Which is true about the evolutionary relationship between ants and plants?
A.Ants depended more upon plants. B.It caused a race for better evolution.
C.How it got started was uncertain. D.It was of little value for future studies.
4.What's the author’s purpose of writing the passage?
A.To introduce a science research method.
B.To inform readers of a latest research finding
C.To arouse readers' interest in science research.
D.To criticize people's traditional views about plants.
A company called Compass Pools has some good news for height and swimming enthusiasts.Recently, the company announced their novel design-a first of its kind 360-degree pool which is set to be placed on a skyscraper in London.The Infinity London will be the first and only building in the world to include this cutting-edge pool design. The pool will be laid on top of a 55-story skyscraper and will allow people to float over 200 meters above the London skyline with unobstructed（无障碍）views of the city.
The entrance to the pool is hidden.People began to raise questions about how anyone would get inside the pool. Compass Pools explains: "Swimmers will access the pool through a rotating spiral（螺旋）staircase based on the door of a submarine, rising from the pool floor when someone wants to get in or out."
But that is not the only unique technology of the pool.The designers found a way to make sure the wind doesn't blow the water down to the streets.They included a built-in anemometer（风力计）to monitor the wind speed. It is linked to a computer-controlled building management system which will also take care of the temperature of the water.
Alex Kemsley promises that this unique pool will surpass expectations."Swimming in the SkyPool at The Shard，it's quite a strange feeling to have helicopters flying past at your level but this pool takes it a step further," he says."Putting your goggles（防水镜）on and with a 360-degree view of London from 220m up, it really will be something else-but it's definitely not one for the acrophobic（恐高）!"
While the exact date of the construction is not clear yet, if things go well, it may begin in 2020.The location has yet to be confirmed too.
1.What can we learn from the first paragraph? ______
A.The Infinity London is the only building to swim in.
B.Swimmers can enjoy the views of London in the poo1.
C.The pool is located on the first floor of a skyscraper.
D.Compass Pools has built many 360-degree pools in the world.
2.What does the underlined word "that" in Paragraph 3 refer to? ______
A.The pool floor. B.A built-in anemometer.
C.The door of a submarine. D.The entrance to the poo1.
3.Who might not be suitable to swim in the SkyPool? ______
A.People who enjoy flying. B.People who lose weight.
C.People who fear heights. D.People who have poor sight.
4.What can we know about the SkyPool at The Shard? ______
A.It is not certain when people can swim in it.
B.Its exact location of the construction is clear.
C.Swimmers can expect its designs easily.
D.It's impossible to monitor the temperature of the water.
Have you ever missed something in your life?
The wife asked the husband when she was 25. Upset, the husband replied:“I missed a new job opportunity.”When she was 35,the husband angily told her that he had just missed the bus. At 45, the husband sadly said:“I missed the opportunity to see my relative before his last breath." At 55,the husband said disappointingly: “I missed a good chance to retire.” At 65, the husband hurriedly replied:“I missed a dental appointment.”At 75, the wife did not ask the husband any more, and the husband was kneeling in front of the very sick wife. Remembering the question the wife used to ask him, this time he asked the wife the same question. The wife, with a smile and peaceful look, replied: “In this life, I did not miss having you!" The husband was full of tears. He always thought that they could be together forever. He was always busy with work. So he had never been circumspect to his wife. The husband hugged the wife tightly and said: “Over 50 years, how 1 had allowed myself to miss your deep love for me !”
In the busy city life, there are many people who are always busy with work. These people focus on their jobs, and these people sacrifice all their time and health to meet the social expectations. They are unwilling to spend time on health care. They miss the opportunity to be with their children in their growing up. They neglect the loved ones who care for them, and also their health. Nobody knows what is going to happen one year from now.
Life is not permanent, so always live in the now. Express your gratitude to your loved ones in words. Show your care with actions. Treat everyday as the last day of life. In this way, when you are gone, your loved ones would have nothing to feel sorry about.
1.What did the husband miss when his wife was 65?
A.He missed the bus.
B.He missed a dental appointment.
C.He missed a good chance to retire.
D.' He missed the opportunity to see his relative.
2.The underlined word“circumspect" ( in Paragraph 2) is closest in meaning to“_____”.
A.loyal
B.grateful
C.thoughtful
D.friendly
3.What is the passage mainly about?
A.A sad love story.
B.Memories of a happy family.
C.Things that you missed in your life.
D.Expressing gratitude to your loved ones in words.
Enjoy a museum visit with your class
Available Programs：
Art Tells a Story： By looking at the subject matter and by drawing from personal experiences， students can find the story in some works of art． （ All grades）
Learning to Look： An interactive（互动的）tour that explores a variety of art using storytelling， movements， music， games， and other techniques helps introduce children to a museum． （Preschool～ Grade 3）
Native American Collection： This program explores relationships that exist between art， culture，the geographic location and natural resources． Students will see a bowl made by Maria Martinez， a Towa storyteller， a Northwest coast mask， and Inuit clothing． （ For Grades 2～5）
The Language of Art： Classes are welcomed into the museum to take part in an interactive tour of American Art． It gives participants a new set of vocabulary while helping them feel comfortable．
Art﹣on﹣the﹣Move： Teachers may borrow suitcases filled with art objects． Free organizations with Education Membership．
Planning Your Visit：
Booking：Booking is necessary for all tours and programs．Please book at least a week in advance．Teachers are encouraged to organize self﹣guided visits for their classes during public hours．
Tour Hours： Tours can be organized between 9：30 a．m． and 5：00 p．m． on weekdays．
Program Fees： Tours are free for those with Education Membership． There is a charge of ﹩6 per student of non﹣member organizations． Tour with art activities cost ﹩12 per student （non﹣members）or ﹩10 per student （members）．
Chaperones（保护人）：We require one adult chaperone for every 10 children．Chaperones help to make your museum visit a success． A chaperone must pay ﹩5 admission．
Lunch： We regret that no lunch facilities are available at the museum．
Museum Rules： Don't touch works of art． Don't take photographs．
Ask questions． Look， and then LOOK again!
Enjoy!
1.If teachers want their students to learn about what a museum is， they will choose ．
A.Art Tells a Story．
B.Learning to Look．
C.The Language of Art．
D.Native American Collection．
2.How much should the museum charge a class of 60 students with Education Membership for a tour with art？
A.﹩600．
B.﹩630．
C.﹩720．
D.﹩750．
3.What do teachers need to do before leading their classes to the museum？
A.To make bookings ahead of time．
B.To try to get Education Membership．
C.To learn about the history of the museum．
D.To ask for the permission of self﹣guided visits．
4.In which section of the newspaper does the passage most probably appear？
A.Health．
B.News．
C.Culture．
D.Advertisement．
假定你是李华，你的美国朋友Jack对你参加高考的事非常关心，发邮件向你询问。请你回复邮件，内容包括：
1．高考概况(考试时间、科目等)；
2．高考的重要性；
3．你的打算(目标院校及专业等)。
注意：1．词数为100左右；
2．可适当增加细节，以使行文连贯。
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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（Λ），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.每处错误及其修改仅限一词；2.只允许修改10处，多者（从第11处起）不计分。
Dear Steven,
From your letter , I know it is hard for you to make friends . The following suggestion are possibly of some help to you.
To begin with,walking to your classmates and talk with them.After several talks,you will happy find that they are likely to consider you as a warm-heart person. Gradually,you will enjoy each other company.Besides,you’d better to give them a hand when they are in trouble.Lastly,it is advisable to participate for different kinds of activities,which you can communicate with different people.
All in all,follow my advice above,and you would find that it isn’t big deal to make some friends.
Yours,
Jack
