Picture this: You’re playing soccer with friends. As you kick the ball, you realize the bottom of your foot feels cold and wet. You turn your sneaker up to look at the sole (鞋底). A big crack(裂缝) is letting water from the ground in. When you get home, you throw your ruined sneakers away.
Now imagine another ending to the story. You don’t throw the sneakers away. Instead, you push the two sides of the cracked sole together so they’re touching. You leave the sneaker in a warm spot. A few hours later, the crack disappears.
Thanks to Qiming Wang, a professor at the University of Southern California, a self-healing (自我修复的) sneaker sole could soon become reality. Wang and his team have invented 3D printable rubber that could fix itself. When it’s exposed to heat, it causes a chemical reaction that bonds its atoms back together. The material could be used to3D print not only sneaker soles, but also toys, bike tires, even satellites.
To 3D print a self-healing object, the first step is to make a model of it on the computer. The model is “divided” into 100 smaller pictures. This first picture is projected onto a thin laver (层) of the rubber, which starts as a liquid. The rubber takes on the shape of the picture, and the light from the projection turns it from liquid to solid. The next picture is projected on another layer of liquid rubber on top of the first one. The final, complete shape is built up layer by layer like this.
Many footwear companies want to buy this technology. First, though, Wang and his team have to try to make the material in different levels of hardness. Wang thinks it will take two or three years for their material to show up in shoes we buy in stores.
One exciting thing about the special rubber is the amount of waste it can reduce, Plus, it can self-heal “more than 10 times”. When it can’t heal anymore, it can be recycled.
1.How does the author introduce the topic?
A.By asking questions for readers to think about.
B.By presenting a possible situation in our life.
C.By telling an interesting story about himself.
D.By comparing different research findings.
2.What is the key to the self-healing process?
A.Proper temperature.
B.Strong light.
C.Enough water.
D.Fresh air.
3.What is Paragraph 4 mainly about?
A.The process of 3D printing a self-healing object.
B.The steps to make the self-healing rubber.
C.The material of self-healing objects.
D.The advantages of 3D printing.
4.What do we know about the special rubber?
A.It has a high price.
B.It is environment-friendly.
C.It has a very short usage period.
D.It is being tried by footwear companies.
As a children's author and former English teacher, Abi Elphinstone has spent almost all of her life surrounded by the written word. Now an ambassador for the charity Coram Beanstalk, Ms Elphinstone plays a key role in championing the importance of literacy (读写能力）and the role played by its volunteers.
The charity has teamed up with the i (a British newspaper) to increase the number of its helpers, which it sends into schools to give children aged 3 to 13 who have fallen behind with their reading or are at risk of doing so support with their reading.
“I think there is an absolute need to reach kids who don't have access to books,” she said. “Just reading for 10 minutes a day improves a child’s achievement at school. Books show children the world is big and varied and full of wonder.”
And Ms Elphinstone knows first-hand how tricky reading is from her own experience. “In class when the teacher said 'could you read aloud', the words would jump all over the page and I’d stumble （结巴）and lose so much confidence,” she said. “That was difficult. Until way after leaving school, I just assumed I needed to put in a lot more work than other people to finish an essay or process information.”
Nowadays she thinks one of the biggest challenges is the competition books face from screens, which are being used by children for everything from videos and games to social media.
“There's so much demand on their time and it’s such an easy, quick-fix demand,” she said. “It's immediate satisfaction. Screens are loud and books whisper with quieter magic, but I think the effects are transformative and they are longer lasting than a Screen.”
This is where she thinks Coram Beanstalk can help, both with reading and also making children Feel valued.
1.Why did Coram Beanstalk work with the i ?
A.To advertise its ambassador.
B.To find more book donators.
C.To attract more people to volunteer.
D.To help increase the newspaper's subscription.
2.What is the goal of Coram Beanstalk?
A.To teach children English.
B.To encourage reading in children.
C.To inspire children to write books.
D.To improve children's social skills.
3.Which of the following Ms Elphinstone's school experience?
A.She had limited access to books.
B.She could hardly finish reading a book.
C.She was afraid of reading loudly in public.
D.She seldom handed in her class essay on time.
4.What's Ms Elphinstone's opinion on screens?
A.They affect children in a quict way.
B.They have a short-term effect on children.
C.They offer children easy access to books.
D.They bring children transformative change.
Nanny (保姆)Positions
Applicant Requirements:
·Be at least 21 years of age.
·Have a minimum of 3 years of private in-home childcare experience.
·Provide phone and e-mail information for 2 recent childcare employment references.
·Provide current US work authorization.
·Be able to make a minimum one-year commitment.
Battery Park
Here is the schedule: Monday 2:30 pm—6:30 pm, Tuesday 4:30 pm—6:30pm, Wednesday 3:30 pm—6:30pm, Friday 7:30 am—6:30 pm. Children include 2 girls and a boy. Responsibilities include children’s care, playful engagement (参与)and organization of their spaces and belongings, children’s laundry and evening baths.
Brooklyn
The schedule is Tuesday to Friday from 11 am—7 pm. One 6-month-old boy. Responsibilities are all related to the baby and his care. You'll monitor and promote his continued strong development, provide clothing care and healthy meal options. Please like cats; they have an animal friend.
Forest Hills
The schedule is Monday to Friday from 2:15 pm—7:15 pm. A boy aged 9 and a girl aged 5. Responsibilities include school pick-ups, homework help, children’s meal preparation and keeping the common areas tidy. There are no pets, no travel and there is a weekly housekeeper for deep cleaning.
The Upper East Side (UES)
The schedule is Monday to Thursday from 2:30 pm—8 pm and Fridays from around noon—7:30 pm. Children include a 3-year-old boy and a 4-year-old girl. Responsibilities are all child-related and a willingness to work alongside the full-time nanny to help with meal preparation. Must swim and drive.
For more information, please call 1-212-333-6411.
1.What is required of all applicants?
A.Living in the US for three years.
B.Working as a nanny for at least one year.
C.Working for no less than 30 hours per week.
D.Offering former employers’ phone numbers.
2.When is the working time for the Battery Park position?
A.Monday morning.
B.Tuesday morning.
C.Wednesday morning.
D.Friday morning.
3.What is a responsibility for the UES position?
A.Taking care of a cat.
B.Helping prepare meals.
C.Cleaning the house thoroughly.
D.Picking up children after school.
假如你是李华，你的美国笔友Mark本学期选修了汉语课程。最近，他来信询问你如何学好汉语。请你根据如下提示给与他一些建议。
1认真听讲，积极练习
2 广泛阅读
3 欣赏影视作品
注意：可适当增加细节，以使行文连贯
词数： 不少于100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。
Our school was going to set up a science club for the students interested in science. I think you should join in the club, where you can learn much knowledge about science. Beside, the club will provide you with the chances make friends with other students. Anyone who share your interests may become one of your friends. You can also discuss our study experience with them. What’s more, joining a club will enable you to take part in various activities and to attend the lectures giving by some famous scientists. To be brief, it will be beneficial for you to join the club, which you can get acquainted with other students and learn new thing.
语法填空
During the summer I1.(go) to England to visit several places,2.I have learned that the United States and the United Kingdom are different in cultures. For one thing, England is a lot cleaner,3.(include) the streets and the air. Throughout my whole traveling experience, I have learned that England and the United States are similar but are also unlike in many4.(culture) ways?
In England, they have a different dialect so some of their words differ from5.(us).They also use more bicycles cars. Their method6.driving is different too. Americans drive on the left side of the car and in England they drive on the right side of the car.
There are many7.(different) in the way we eat, too. In England, they eat with a knife and fork. In America, we eat French fries with our fingers and we don't use forks and knives for those kinds of foods. In America, coffee is 8.most popular drink that adults usually drink. In England, they have tea instead of coffee.
9.(general), I think that the way people in Britain live their lives is much10.(simple).
