阅读下面短文，根据其内容写一篇60词左右的内容概要。
Not all education can and should happen within the classroom. Sometimes, traveling is the best form of education, as students can get a number of personal and educational benefits from travel. From learning about other cultures first-hand to seeing where historical events took place with their own eyes, educational travel gives students the opportunity to deepen their understanding of art, science, history, and culture in many ways.
Educational becomes a whole new experience when students can see lots of tools and equipment for themselves by traveling to different places. The tools and equipment could be used by scientists decades or even centuries ago to make discoveries that make our modern world possible. Educational travel brings the materials off the pages and into reality, allowing students to connect themselves with them in a more meaningful way.
No matter where students go, it’s almost guaranteed that they’ll find some kind of food that is unique to that place or done better than anywhere else. If someone gets Chicago-style pizza in Chicago, they’re going to have a different tasting experience than they would if they were getting the same type of thing in, say, Texas. At the same time, getting chili in Texas would be a whole different experience from getting chili in New York or Chicago. Students can learn a lot about a culture by what they eat on a daily basis and what they consider a special meal, so it’s good to take a taste of the local food and learn through all of the senses.
Being away from family, home, and familiar ground is a courageous and independent adventure in its own right. Educational travel provides that opportunity to allow students to open their minds regarding how they choose to live life, which can be extraordinarily helpful in preparing students for college and adulthood. Traveling – with the combined social skills and perspectives(视角) it teaches – really allows students to better understand how they can operate on their own.
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假设你是星光中学的李华，将参加主题为“Let’s Ride Bicycles”的英语演讲比赛，请写一份演讲稿，内容主要包括：
1、汽车带来的问题；
2、骑自行车的益处；
3、你的立场。
参考词汇：低碳的 low-carbon
注意：1.词数：80字左右，开头结尾已给，不计入；
2.可适当增加细节，以使行文连贯。
Good morning, everyone!
I'm Li Hua from Xingguang Middle School.
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Thanks for your listening!
阅读下面句子，在空白处填入适当的内容(1个单词)或括号内汉语提示的正确形式。
1.Doctors warn people that one may develop skin cancer if his skin ______(暴露) to the sun too much.
2.Neither could they relax or read a book without ______(塞住) their ears.
3.Because of illegal logging, forest fires and climate change, the world’s forests are disappearing ______ the rate of 146,000 square kilometers a year.
4.No sooner had they settled themselves into their seats ______ the curtain went up.
5.______ number of pandas has fallen because of human activity destroying much of their habitat.
6.Dust from the volcano ______(滚动) across the Earth’s skies and pretty much cancelled the following summer in Europe and America.
7.In the last three years, Indonesia has had a rough time, ______(遭受) several killer quakes.
8.Many nations have already been in armed conflict over water, and ______(减少) rainfall has resulted in huge forest fires.
9.Given this data, it seems that the link between human ______(活动) and rising global temperatures is not merely a coincidence.
10.Without these ______(自然) occurring gases, the sun’s rays would bounce back into space leaving the Earth cold and impossible to live on.
An act of kindness doesn't have to be a grand gesture. Even those small acts of kindness can make a difference in someone's day. That was just the case for Amie Mickey when she _________ a bumper sticker (车尾贴) on her car reading: You Matter.
Amie started to do this several years ago. At first, she wondered if people would_________it. However, much to her surprise, she began seeing a flood of _________ every time she hit the road. More often than not, people _________slowly near her car would roll down their windows, raising their_________, waving and smiling. Sometimes, she even found some sticky notes left on her windshield saying things like “You _________too! “Once while she was driving down the highway, she became_________ when a man driving a sports car at a high speed pulled his car alongside suddenly, waving and mouthing, “You matter!” Though it took her some time to recover from the_________, she still felt happy. Last year, someone _________ her car while she was waiting for her friend in the car by the roadside, saying to her, “It is a(an) ____________sticker. I’ve seen various stickers before, but none of them have touched me as your sticker has done. “The two small words on the sticker seem simple enough, but they really struck a chord with many complete strangers who____________to catch sight of the sticker.
Stories like Amie's really____________the rest of us. Sometimes a kind word or gesture may lift our____________ and it doesn't cost a thing except for a little extra thought. Maybe it means offering a friend a hug, praising the children when their children ____________well in school, helping someone out or volunteering at nursing homes. Acts of kindness are waiting everywhere. Small as they seem, they can make a ____________ impact on the world, and help form general goodness.
1.A.tore up B.picked up C.fixed up D.put up
2.A.watch B.overlook C.notice D.ignore
3.A.attention B.confusion C.strangers D.passers-by
4.A.running B.driving C.walking D.riding
5.A.voices B.hats C.shoulders D.thumbs
6.A.count B.share C.value D.matter
7.A.frightened B.discouraged C.embarrassed D.disappointed
8.A.parking B.speed C.incident D.event
9.A.approached B.blocked C.repaired D.cleaned
10.A.important B.special C.typical D.skeptical
11.A.happened B.occurred C.managed D.offered
12.A.shock B.inspire C.delight D.satisfy
13.A.feelings B.thoughts C.spirits D.minds
14.A.work B.exercise C.conduct D.behave
15.A.reliable B.subjective C.positive D.brief
The Internet, as we know, is probably one of the greatest inventions of human history. Never before has the access to the collection of the world’s knowledge ever been more available. 1. Some people look to make use of the information you are providing to the Internet. Everything you do online leaves a small footprint.
There are a couple of steps you can take to make your adventures online a little safer and more secure. Let’s take a look at them.
Cover your tracks.
Whenever you visit a website, a small file is marked in your browser(浏览器), which is called a “cookie”. 2. This enables the webserver to know if you have been there before and it can tailor the presentation to your personal tastes. They are also how Facebook knows to serve you ads based on stuff you looked at on Amazon.
So what’s the harm in the cookie? Well, hackers can use the information stored in your cookies to edit a browsing history or with less secure cookies, take your passwords for some sites. If you want to protect yourself from your information being available to sites then you can turn off the generation of cookies in your browser. 3.
4.
The major browsers, Chrome, Internet Explorer, Firefox, and Safari are all built to be secure from snooping(窥探), but the people who write the code for the browsers are human and they make mistakes. 5. These are usually addressed very quickly, but it is important that you make sure your browser is up to date. Just like your operating system, new security patches are being applied all the time, you need to make sure you have them. Turning on automatic updates is something I highly recommend.
A.Use the latest browsers.
B.Change browsers frequently.
C.This will help protect you online.
D.That’s how the cookie works on our computer.
E.This great invention and resource is not without its dangers.
F.It is common for a security problem to pop up with a browser.
G.These cookies store information about who you are and what you looked at.
Erik Kobayashi-Solomon spent a day with Dr. Paul Gauthier, a plant physiologist specializing in vertical (垂直的) farming research and came away with several important ideas about vertical farming.
Humans have 12,000 years of experience in growing food, but only a generation’s worth of experience or so in growing crops indoors. We are still progressing up the technology learning curve (曲线). What’s more, traditional farming techniques are based on conditions that are not applicable to vertical farming. Therefore, without taking time to understand the science, vertical farming is not likely to be able to live up to its implied promise.
The cost of powering LED grow lights is one of the biggest problems a vertical farm must overcome. Dr. Louis Albright at Cornell has characterized vertical farms as the “pie-in-the-sky” business. He famously calculates, for instance, that the cost of a loaf of bread would be $ 24 if farmed indoors—the cost is too high. Gauthier acknowledges that energy prices are high but points out that scientific work has shown that only about 6% of available sunlight is used in crop photosynthesis (光合作用), so there may be ways of growing the same plants with less light.
Gauthier also points out that while energy costs are a bit high, vertical farming does create enormous efficiencies in other areas. Water usage may be significantly reduced because the same water can be recycled time and again. Fertilizer use can also be greatly reduced and pesticides for pest control are unnecessary. It’s clear that vertical farming offers real value to society.
The future is probably mixed. In some environments—the Middle East, for instance—a move to vertical farming is a no-brainer. An indoor farm in Saudi Arabia, for instance, can use solar energy to power LEDs at low cost without shading other farmland. In other environments, though, the expense of establishing a facility places a high bar on growth and profitability. A large vertical farming and equipment operation only started generating a small profit eight years into its nine-year life.
1.What can we infer about vertical farming in Paragraph 2?
A.It relies on more basic scientific research.
B.It will replace traditional farming one day.
C.It actually came into being 12,000 years ago.
D.It can be applicable under different conditions.
2.What does Dr. Louis Albright think of vertical farms?
A.They use less light than traditional ones.
B.They can overcome many problems in farming.
C.They may seem very unlikely to be popularized.
D.They do not need any natural sunlight any longer.
3.What is the fourth paragraph mainly about?
A.The recent trend of vertical farming.
B.The possible benefits of vertical farming.
C.The secrets of developing vertical farming.
D.The ways of reducing costs of vertical farming.
4.Why is the example of “an indoor farm in Saudi Arabia” mentioned?
A.To argue that vegetables do not need to be imported any longer.
B.To prove solar energy is vital for farming in Saudi Arabia.
C.To confirm the expense of setting up a vertical farm is high.
D.To show vertical farming can work pretty well in some places.
