Quick, turn the gas ____________. Cover the pan. Be careful!

[    ]

A. on   B. down   C. off   D. up

   The global energy crisis is approaching. What can we do? Here are some steps you can take.

   Cooling puts the greatest stress on your summer energy bill and the power grid(电网). Just as t tune-up for your car can improve your gas mileage, a yearly tune-up of your heating and cooling system can improve efficiency and comfort. Clean or replaces filters monthly or as needed.

   For central air conditioning systems and room air conditioners, look for the ENERGY STAR, the federal government’s symbol for energy efficiency. For central air, purchase the system with the highest possible Seasonal Energy Efficiency Raton. (SEER)

   Use energy-efficient ceiling fans either alone or with air conditioning. Ceiling fans do a great job of circulating air. When used with air conditioning, fans allow you to raise the thermostat(恒温器) and cut costs. Ceiling fans cool people, not rooms, so before you leave; turn off the ceiling fan.

Let a programmable thermostat! “remember for you” to automatically adjust the indoor climate with your daily and weekend patterns to reduce cooling bills by up to 10 percent. You can come home to a comfortable house without wasting energy and cresting pollution all day while you are at work.

 Try to make your home airtight enough to increase your comfort, make your home quieter and cleaner and reduce your cooling costs up to 20 percent.

 Gut your air conditioning load, and reduce pollution by planting planting leafy trees around your home and fixing reflective bricks on your roof.

 Close blinds or shades on south-and west-facing windows during the day, or fix shading equipment to avoid heat build-up.

  Turn off everything not in use: lights, TVs, computers. And use fluorescent bulbs(荧光灯), which provide bright, warm light while using at least two-thirds less energy, producing 70 percent less heat and lasting up to 10 times longer than incandescent bulbs(白炽灯).

 Drive the car that gets better gas mileage whenever possible if you own more than one vehicle. If you drive 12,500 miles a year, switching 10 percent of your trips from a car that gets 20 mils per gallon to one that gets 30 mpg will save you more than ￡65 per year.

 Carpool. The average U.S. commuter(乘车上班族) could save about ￡260 a year by sharing cars twice a week with two people in a car that gets 20.1 mpg---assuming the three passengers share the cost of gas.

According to the passage, the thermostat is used to ______.

A. make rooms quieter              B. control room temperature

C. turn off the air conditioner         D. reduce room air pollution

We can conclude from the passage that the author probably discourages ______.

A. planting leafy trees around your home

B. turning off the ceiling fan before you leave your house

C. keeping your south-facing windows open during the day

D. using fluorescent bulbs instead of incandescent bulbs

According to the passage, you can save fuel by ______.

A. using energy-efficient ceiling fans      B. sharing cars with others on workdays         

C. turning off everything not in use       D. reducing 10% of your car trips every year

This passage is mainly about ______.

A. energy-saving tips          B. fuel-saving tips         

C. do-it-yourself tips           D. environment-protecting tips

The global energy crisis is approaching. What can we do? Here are some steps you can take.
Cooling puts the greatest stress on your summer energy bill and the power grid(电网). Just as t tune-up for your car can improve your gas mileage, a yearly tune-up of your heating and cooling system can improve efficiency and comfort. Clean or replaces filters monthly or as needed.
For central air conditioning systems and room air conditioners, look for the ENERGY STAR, the federal government’s symbol for energy efficiency. For central air, purchase the system with the highest possible Seasonal Energy Efficiency Raton. (SEER)
Use energy-efficient ceiling fans either alone or with air conditioning. Ceiling fans do a great job of circulating air. When used with air conditioning, fans allow you to raise the thermostat(恒温器) and cut costs. Ceiling fans cool people, not rooms, so before you leave; turn off the ceiling fan.
Let a programmable thermostat! “remember for you” to automatically adjust the indoor climate with your daily and weekend patterns to reduce cooling bills by up to 10 percent. You can come home to a comfortable house without wasting energy and cresting pollution all day while you are at work.
Try to make your home airtight enough to increase your comfort, make your home quieter and cleaner and reduce your cooling costs up to 20 percent.
Gut your air conditioning load, and reduce pollution by planting planting leafy trees around your home and fixing reflective bricks on your roof.
Close blinds or shades on south-and west-facing windows during the day, or fix shading equipment to avoid heat build-up.
Turn off everything not in use: lights, TVs, computers. And use fluorescent bulbs(荧光灯), which provide bright, warm light while using at least two-thirds less energy, producing 70 percent less heat and lasting up to 10 times longer than incandescent bulbs(白炽灯).
Drive the car that gets better gas mileage whenever possible if you own more than one vehicle. If you drive 12,500 miles a year, switching 10 percent of your trips from a car that gets 20 mils per gallon to one that gets 30 mpg will save you more than ￡65 per year.
Carpool. The average U.S. commuter(乘车上班族) could save about ￡260 a year by sharing cars twice a week with two people in a car that gets 20.1 mpg---assuming the three passengers share the cost of gas.
【小题1】According to the passage, the thermostat is used to ______.

The smartphone has become the centerpiece of many students' digital lives.

Yes, it can be a distraction(困扰，分心), but it is also an incredible tool that can transform classroom learning and late-night studying.

Professors and students are starting to explore what the smartphone can contribute to learning-and there is a whole host of apps（设备） to help that process along. There are also plenty of apps to help students with the less academic parts of college life.

   To download any of these apps, search the iTunes App Store or Android Market. iOS apps are built for Apple's mobile platform and can run on the iPhone, iPod Touch or iPad.

Skype

   Cost: Free

   Platform: Android, BlackBerry, iOS

   More and more smartphones now ship with front-facing cameras that make them great video chat tools.

   There are several competitors here ---- including Apple's FaceTime ----but Skype is still the best cross-platform tool for keeping in touch with faraway friends and family. Users on either end can be on a computer, smartphone.

   Grades 2

   Cost: Free

   Platform: iOS

   This app is a sophisticated tool for calculating grades. Students can use it to figure out what grade they'll need on a test to achieve their target grade and also keeps track of overall GPA, weighted by each class's credit count.

Students can also enter due dates for assignments as reminders.

   The app is free and supported by ads, but users can pay $1 inside the app to turn them off.

    Snoozerr Recordings

    Cost: 99 cents

    Platform: iOS

    This is a great tool for logging long lecture classes or smaller study sessions(授课时间）． It records audio and pairs that with time-stamped pictures that the student takes of presentations--- say, equations（方程）on a blackboard----or of his or her own notes.

    When the student wants to review, he or she can use the pictures as a visual guide to what the instructor was saying and replay that section.

    TED

    Cost: Free

    Platform: iOS

    This app is great for the student in everyone. It compiles（编辑）video from hundreds of presentations at technology, entertainment and design----a conference that features short speeches focused on new ways of thinking.

    Presenters often speak about technology, social good or education and challenge societal norms.

    It's a great way to spend an hour or so hearing from some of the world's leading minds for free. All of the videos are also available at www.ted.com.

AroundMe

    Cost: Free

    Platform: Android and iOS

    This app uses a smartphone's GPS to find nearby locations by category such as banks, gas stations, bars, coffee shops, restaurants and supermarkets---- all the college staples(主要产品).

1.In which section of a newspaper could you find this article?

A. Science & Tech.     B. Entertainment.      C. Life.      D. Tourism.

2.What might be the best title for the text?

A. How to Improve College Students' Studies

B. How to Download Computer Games

C. How to Choose the Latest Smartphone

D. Five Tech Tools for College Students

3.Many college students use Grades 2 mainly for _____.

A. chatting                     B. calculating    

C. hearing speeches              D. recording lectures

4.If you want to use your smartphone to find a nearby supermarket, you should download _____.          .

A. TED          B. AroundMe       C. Skype       D. Grades 2

5.ios means _____.

A. TED          B. VCS            C. OS          D. ECX

268. The limited supply of water has been put into practice, take care to turn off the running ____ before you leave.