Printing images is easy. Just select an image of a purple robot on your PC, for example, and press print. Your home printer exactly shoots drops of ink onto a flat piece of paper, creating the robot’s 2-D image. “Printing” 3-D objects is different. Take the purple robot. First select a file of the 3-D printer. Immediately, the printer begins making noise, and a nozzle (喷嘴) releases plastic material in thin layers. In two or three hours, a 3-D purple robot is standing before you.
3-D printing has developed to the point where printers can now create high-quality objects using a variety of materials, including metals. That means 3-D printers can now make final products that meet high industrial standards. 3-D printers are already being used to make parts for racecars and jets as well as man-made limbs and hearing aids.
So far, few homes have 3-D printers. That’s because 3-D printing is not only new to most people but also quite expensive. To bring 3-D printing to the masses, some retail stores (零售商店) plan to offer the service. For example, the Staples chain of office supply stores has announced that it will offer 3-D printing in Europe beginning in 2013. Customers will be able to submit their own 3-D designs to Staples website for printing. After the job is done, they’ll pick up their item at a nearby Staples store or have it mailed to their homes. This service is sure to encourage many more people to try out 3-D printing.
1.According to this article, who are 3-D printed parts already helping?
A. People with physical disabilities.
B. People in the solar energy field
C. People who lack suitable housing
D. People in need of computer skills
2.What will customers need in order to submit their designs to Staples?
A. A credit card account
B. Its local phone number
C. Professional experience
D. Access to the Internet
3.What does the writer of this article imply about 3-D printing?
A. Its inventor is famous
B. Its future looks bright.
C. It is still quite cheap.
D. It will be of little use.
4.What do we learn about the 3-D purple robot?
A. How long it can usually last
B. How it can darken its own color
C. How it gradually takes shape
D. How much it costs to produce
Very few people look forward to and enjoy exams. That doesn’t have to mean that you should be afraid of them, though. The following tips will help you get through that terrible exam period.
Here are eight steps to help you during exams:
1. Make sure you know how much time you will have in the exam, and how many questions there will be. Then you can divide your time among the questions to make sure that they all get answered.
2. When you’re doing an exam that involves (涉及) long answers, it is a good idea to leave some space at the end of the answer so that you can add any extra comments that might come to mind when you reread your paper.
3. Don’t spend all of your time only on questions that you know the answer to because you will get a worse mark for answering some questions very well and some not at all.
4. It is worth taking a little extra time to make sure that your handwriting is neat. Then the examiner will be able to read it! Try to avoid spelling mistakes too!
5. The more prepared you are, the more likely you are to succeed.
6. Keep calm. If you feel yourself getting worried, take a deep breath.
7. Don’t try to discuss the exam after you’ve finished it. If you’ve got different answers from your friends, there’s no point worrying about it.
8. Once an exam is over, just forget about it. There is nothing more you can do about it. The best thing you can do is to go home and prepare for the next one.
1. You can get a better mark if ______.
A. you spend all of your time on questions that you are not good at
B. you discuss the answers with your friends after exams
C. you go over your notes carefully for the exam
D. you spend most of your time on questions that you know well
2. The passage is probably written for ______.
A. people who mark exam papers
B. people who take exams
C. high school teachers
D. language learners
3.The underlined word “avoid” in the passage most probably means “______”.
A. check out
B. go over
C. think about
D. prevent something from happening
Have you ever heard the old saying, “Never judge a book by its cover.”? This is a good rule to follow when trying to judge the intelligence of others. Some people have minds that shine only in certain situations. A young man with an unusual talent in writing may find himself speechless before a pretty girl when he speaks. He may not be able to find the right words. But don’t make the mistake of thinking him stupid. With a pen and paper, he can express himself better than anybody else.
Other people may fool you into overestimating(过高估计) their intelligence by putting up a good front. A student who listens attentively and takes notes in class is bound to (一定会) make a favorable impression on his teachers. But when it comes to exams, he may score near the bottom of the class.
In a word, you can’t judge someone by appearance. The only way to determine a person’s intelligence is to get to know him. Then you can see how he reacts to different situations. The more situations you see, the better your judgment is likely to be. So take your time. Don’t judge a book by its cover.
1.The passage suggests that ______.
A. a speechless person always writes well
B. a good writer may not be a good speaker
C. a good writer is always a good speaker
D. a good writer will find himself speechless
2.According to this passage, a student who listens attentively and takes notes in class ______.
A. is an intelligent student
B. will not be a good student
C. will score best in exams
D. may not be an intelligent student
3.The passage suggests that we should judge a person’s intelligence through ______.
A. his teachers
B. his behavior in the classroom
C. his reactions to different situations
D. his appearance
4.The writer of this passage wants to tell us not to______.
A. judge a book by its cover
B. make the mistake of thinking a young man stupid
C. overestimate a student’s intelligence
D. judge a person’s intelligence by his appearance
句子翻译
1.她无法忍受别人的嘲笑。(stand)
2.他现在正遭受头痛之苦。(suffer)
3.我们宁愿在外面玩也不愿意在家看电视。(prefer)
4.学生们向校长投诉作业太多。(complain)
根据所给汉语及英语提示完成下列句子,每空一词(请把答案填入答卷标号为76-81的空格中)。
1.The incident caused _______ _______ _______ (一系列的) events that nobody had foreseen.
2.Nowadays many young graduates _______ _______ _______ (自愿义务教书) in poor faraway villages.
3.To reduce stress, one of the important things you should do is to _______ _______ _______ (多锻炼)。
4.That girl spent much time _______ _______ _______ (更换衣服) before the party.
5.Mike and John work hard at their lessons _______ _______ _______ (为了) catch up with the others.
6.I don’t know _______ _______ _______ (怎样设计) a poster.
根据下列各句句意及所给单词的首字母或汉语提示,用正确形式的单词填空。并把完整单词填写在答题卷相应的位置上。
1.Having experienced many failures, I have the courage to meet all the _________ (挑战).
2.Can the problem be _________ (解决) by money?
3.Nowadays we can see _________ (广告) everywhere, on the walls, in the newspapers and on TV.
4.You are _________ (应该) to finish your homework on time.
5.Now he is _________ (拨) his friend’s number, but the line is busy.
6.She is absent because of s_________.
7.Mary g_________ from Cambridge last year with a degree in law.
8.The computer will soon work out the d_________ between the two cities.
9.A healthy d_________ should be rich in fruit and vegetables.
10.I’m sorry. I must go now. I have something u_________ to deal with.