Last night I was driving from Harrisburg to Lewisburg，distance of about eighty miles. It was late. Several times I got stuck behind a slow-moving truck on a narrow road with a solid white line on my left, and I became increasingly impatient.
At one point along an open road, I came to a crossing with a traffic light. I was alone on the road by now, but as I drove near the light, it turned red and I made a stop. I looked left, right and behind me. Nothing. Not a car, no suggestion of car lamps, but there I sat, waiting for the light to change, the only human being for at least a mile in any direction.
I started wondering why I refused to run the light I was not afraid of being caught, because there was clearly no policeman around, and there certainly would have been no danger in going through it.
Much later that night, the question of why I'd stopped for that light came back to me. I think I
stopped because it's part of a contract(契约)we all have with each other. It's not only the law, but it is an agreement we have, and we trust each other to honor it: we don't go through red lights.
Trust is our first inclination(倾向).Doubting others does not seem to be natural to us. The whole construction of our society depends on mutual(相互)trust, not distrust. We do what we say we'll do; we show up when we say we'll show up; and we pay when we say we'll pay. We trust each other in these matters, and we're angry or disappointed with the person or organization that breaks the trust we have in them.
I was so proud of myself for stopping for the red light that night.
【小题1】Why did the author get impatient while driving?

Today's teens have a knowledge of the Internet that often surpasses that of their parents. Because so many teens are Internet survey, it is important that they also have an understanding of the dangers that exist online and how to deal with them. Watch teens share their own“Real­Life Stories” about issues affecting them on the Internet such as cyberbullying(网络欺凌), online enticement, and giving out too much personal information.

56.The ad. is intended for________.

A. kids loving to play games online

B. only victims of the Internet use

C. kids and their parents who want to learn about the       safety online

D. pre­school students who know little about the Internet

57．If you visit the website，you can________.

A. share your friends'“ Real­Life Stories” about issues affecting them on the Internet

B. have an understanding of the dangers that exist online and how to deal with them

C. say and do terrible things to each other online

D. ask for help when you have difficulty with your study

58．If you visit www.cybertipline.com，you can ________.

A. contact your local law enforcement

B. search our knowledge base for answers to all of your questions about the online world

C. report any incident of the Internet use

D. help your siblings learn how to avoid the dangers that exist on the Internet

59．Which of the following stories you can share on the Real Life Stories?

A. A teen was murdered by the man she met in a chat room.

B. Problems of losing weight.

C. Left home alone.

D. Hurt by second­hand smoke in the Internet cafe.

An Experiment

Materials: Newspaper, ‘ACE’ hardware ruler (1/8 “think”), a flat table.

Purposes: We’ll show that there is air pressure pushing on us, from every direction while we’re on this Earth.

An Experiment
Materials: Newspaper, ‘ACE’ hardware ruler (1/8 “think”), a flat table.
Purposes: We’ll show that there is air pressure pushing on us, from every direction while we’re on this Earth.

An Experiment

Materials: Newspaper, ‘ACE’ hardware ruler (1/8 “think”), a flat table.

Purposes: We’ll show that there is air pressure pushing on us, from every direction while we’re on this Earth.