Nine in ten high school students say there are significant differences in their attitude toward chatting on line, compared with _________ of their parents.
A. those B. that C. it D. one
Do you think that bridge ____ 2,000 meters long? It doesn’t seem ____ long.
A. measures, that B. is measured, so C. is measured, such D. measures, much
We now live in ____ is called the Information Age.
A. when B. which C. what D. that
I was fifteen when I walked into Black Stump Bookstore in Liverpool. As I was looking at on the shelves, the shop owner asked if I’d like . I needed to start for college, so I said yes. I worked after school and during summers for the lowest wages, and the job helped my first year of college. I had worked in many other jobs: I made coffee in the Students’ Union during college, I was a hotel maid and I make maps for the Forest Service. But selling books was one of the most .
One day a woman asked me for books on women’s diseases. She seemed fearful. I showed her almost everything we had at that time and found other books we could order. She left the store less . I’ve always remembered the felt in having helped her.
Years later, as a in London, I heard about a black child born his fingers connected. His family could not a corrective operation, and the boy lived in hiding his hand in pocket. I my boss to let me do the story. After my story was broadcast, a doctor and a nurse called, offering to perform the for free. I visited the boy in the room soon after the operation. The first thing he did was to hold up his hand and say “ Thank you.” I felt a sense of .
In the past I was at Black Stump Bookstore, I always sensed I was working for the customers, not the store. Today, it’s the same. BBC News pays my , but I feel as if I work for the viewers, helping them understand the world.
1.A. maps B. titles C. articles D. reports
2.A. a book B. any help C. any suggestions D. a job
3.A. planning B. leaving C. preparing D. studying
4.A. pay for B. fit for C. run for D. enter for
5.A. so B. never C. even D. still
6.A. boring B. exciting C. satisfying D. disappointing
7.A. in need B. in all C. in order D. in store
8.A. worried B. surprised C. doubted D. puzzled
9.A. pride B. failure C. regret D. wonder
10.A. doctor B. store owner C. bookseller D. TV reporter
11.A. in B. with C. by D. for
12.A. pay B. offer C. afford D. spend
13.A. peace B. honor C. horror D. danger
14.A. chose B. forced C. persuaded D. permitted
15.A. action B. program C. treatment D. operation
16.A. waiting B. recovery C. reading D. guest
17.A. repaired B. connected C. injured D. improved
18.A. pleasure B. sadness C. humor D. responsibility
19.A. if B. though C. until D. while
20.A. prize B. salary C. cost D. bill
From time to time, we all get a bit down. Maybe we are feeling bad because we’re not doing well with our goals. There are many reasons for feeling down, but I’m not able to discuss all of them. ___1.___
Make a list. Sometimes we are sad simply because we are troubled by all the things we have to do. ___2.___ Make a list of the most pressing things you have to do. Thus you’re getting things under control. You can see, right in front of you, what you need to do, and that can pick up your mood.
___3.___ You’ve made a list, and you still feel puzzled? Well, get started on the first thing you need to do. Once you get into action, you’ll feel better. And once you start doing something, you will feel much better than lying around feeling sorry for yourself.
___4.___ I like Brown Eyed Girl, the Kinks, the Ramones, or an upbeat Beatles tune. You might have your own brand of feel-good music. Whatever it is, let yourself move to the beat. It may just be what the doctor ordered.
Talk about it. Get a best friend, family member or coworker you can talk to. ____5.____ It can also help you work out the reasons you’re feeling down.
A. Take action.
B. Play some lively music.
C. Get out of the house and do something.
D. Getting things off your chest makes a big difference.
E. Start simply by picking up a piece of paper and a pen.
F. Do whatever you need to do to feel good about yourself.
G. What I can talk about are some things that have worked for me.
The color red often means danger --- and by paying attention, accidents can be prevented. At railroad crossings, flashing red fights warn cars to stay back. A red light at a traffic crossing tells cars to stop, so they don't run into other cars.
In the future, the color red also may help prevent danger at construction sites. Thanks to new work by engineers, bridge supports --- or other kinds of materials --- could one day contain a color-changing material. It will turn red before a structure collapses(倒塌) or falls apart.
The secret behind the color-changing material is a particular type of molecule(分子). Molecules come in all shapes and sizes, and make up everything you can see, touch or feel. How a molecule behaves depends on what kinds of atoms(原子) it contains, and how they're held together.
To get a rough picture of one way atoms are held together in a molecule, imagine you and your friends standing in a large circle, holding hands. Each person represents one atom, your clasped hands represent the bond, and the entire circle represents a molecule.
The molecule being used to turn the material red is called mechanophore(机械响应性聚合物). When one chemical bond in the mechanophore molecule breaks, the rest of the molecule turns red.
There is a way to get rid of~ the red color: light. When a bright light is shone on the mechanophore, the broken bond is fixed and the red color disappears. This "self-healing" may be a problem for engineers who want to use the color-changer in big construction projects that will be outside, in the sunlight. And if bright light keeps the red color from appearing, then the mechanophore's warning system will be useless.
Scientists still have a lot of work to do before the color-changing molecules can be used outside the lab. If mechanophore can be used in the real world, they are suggested to be employed in a new kind of paint.
1.The first paragraph mainly tells us __________.
A. the color red is widely used in our life
B. how to prevent car accidents
C. the color is an important signal of warning
D. how to use color red
2.The color red will be used at construction sites to _________.
A. tell different materials used in the building
B. warn people that the building is dangerous
C. make the building more beautiful
D. tell people the building is under construction
3.The example given in the fourth paragraph is to show _________.
A. the way atoms are held together in a molecule
B. how a molecule behaves in an object
C. how to play an old game
D. how people get along with each other
4.What can make the mechanophore’s warning system ineffective?
A. Paints B. Water C. Poor building materials D. The bright light
