题干

   In the United States alone,over 100 million cell-phones are thrown away each year.Cell-phones are part of a growing mountain of electronic waste like computers and personal digital assistants.The electronic waste stream is increasing three times taster than traditional garbage as a whole.

Electronic devices contain valuable metals such as gold and silver.A Swiss study reported that while the weight of electronic goods represented by precious metals was relatively small in comparison to total waste,the concentration(含量)of gold and other precious metals was higher in So-called e-waste than in naturally occurring minerals.

Electronic wastes also contain many poisonous metals.Even when the machines are recycled and the harmful metals removed,the recycling process often is carried out in poor countries,in practically uncontrolled ways which allow many poisonous substances to escape into the environment.

Creating products out of raw materials creates much more waste material,up to 100 times more,than the material contained in the finished products.Consider again the cell-phone,and imagine the mines that produced those metals,the factories needed to make the box and packaging(包装)it came in.Many wastes produced in the producing process are harmful as well.

The U.S Environmental Protection Agency notes that most waste is dangerous in that"the production, distribution,and use of products-as well as management of the resulting waste-all result in greenhouse gas release." Individuals can reduce their contribution by creating less waste at the start-for instance,buying reusable products and recycling.

In many countries the concept of extended producer responsibility is being considered or has been put in place as an incentive(动机)for reducing waste.If producers are required to take back packaging they use to sell their products,would they reduce the packaging in the first place?

Governments' incentive to require producers to take responsibility for the packaging they produce is usually based on money.Why,they ask,should cities or towns be responsible for paying to deal with the bubble wrap(气泡垫)that encased your television?

From the governments' point of view,a primary goal of laws requiring extended producer responsibility is to transfer both the costs and the physical responsibility of waste management from the government and tax-payers back to the producers.

【小题1】By mentioning the Swiss study,the author intends to tell us that .
A.the weight of e-goods is rather small
B.natural minerals contain more precious metals
C.E-waste deserves to be made good use of
D.the percentage of precious metals is heavy in e-waste
【小题2】The responsibility of c-waste treatment should be extended .
A.from producers to governments
B.from governments to producers
C.from individuals to distributors
D.from distributors to governments
【小题3】What docs the passage mainly talk about?
A.The increase in e-waste.B.The creation of e-waste.
C.The seriousness of e-waste.D.The management of e-waste.
上一题 下一题 0.99难度 阅读理解 更新时间:2020-02-21 02:01:47

答案(点此获取答案解析)

同类题1

How to Speak in Public

Many people have a fear of public speaking. They worry that they will lose their words,bore the audience or somehow make a fool of themselves. It is easy to try to avoid public speaking,but that usually doesn't work out. Everyone has to speak publicly at some point in their life. You may give a speech in a class or a meeting. Maybe you'll have to give a speech for some honor you've received. 【小题1】

Relax. 【小题2】 Your audience don't expect you to be perfect. They want you to succeed just as much as you do. If you're thinking you'll forget everything,remind yourself that you are prepared and knowledgeable. Imagine yourself doing well.

Be yourself. You are not Jack Canfield or Tony Robbins. Share your true personality with your audience,and they'll find you reliable. 【小题3】

Know your topic. Try to speak about the subject you know well. Research the topic to make sure that you are correct. Public speaking is easier when you don't feel like a fraud(骗子).

【小题4】 Choose your message for the group you are speaking to carefully. If you' re giving a public speech, then rude jokes certainly won't be suitable.

Give value. Base your speech on 2 or 3 main points. 【小题5】 They' ll be satisfied if they leave with something they can use, and that is what public speaking is all about.

A.Know your audience.
B.Choose some serious messages.
C.Don't force yourself to be perfect.
D.Don't focus your attention on too many points.
E.Pretend to be someone that you' re not, and they' ll discover it.
F.Your audience will not remember every little detail you tell them.
G.Follow these steps to satisfy your audience and overcome your fear of speaking publicly.

同类题3

   With an improved economy,many travelers have been buying first or business class seats,leaving fewer for upgrades(升级).Here are some strategies for getting a free upgrade.

1. Fly a lot.

This is the most common way to earn a free upgrade. Most airlines reserve some spaces for travelers who fly at least 5,000 miles per year. Five years ago,this meant half or more of domestic(国内的)first class travelers sat up front for free. But now,airlines are selling more high-price seats,so on popular routes it is not unusual for more than 20 travelers to compete for one or two upgrades. But on routes with fewer business class travelers,free upgrades remain more plentiful.

2. Use miles.

If you're not a frequent traveler but still have some miles to fly,you may be able to use them for an upgrade. Be careful,though,as many airlines now ask not just for miles but also a cash co-pay. One example: on flights to Europe,American Airlines charges 5,000 miles,plus $110,for a one-way upgrade from discounted economy class to business class. For most domestic upgrades,American Airlines wants 15,000 miles plus $ 75.

3. Get lucky.

Sometimes airlines overbook coach(经济舱),and a few travelers get no seats. Agents try to ensure the airline's most loyal travelers get the nod(被选中). Agents usually have some flexibility to make sure the plane is full and takes off on time. So it's the easiest way for them to do it-they might upgrade someone else out of order.

4. Save a life.

Flight attendants don't usually upgrade passengers, even when empty seats remain. Doctors and nurses who answer an emergency call are sometimes an exception. If they comfort a passenger, flight attendants might allow them to sit in business or first class for the rest of the flight.

【小题1】What might be the main topic of the passage?
A.The ways to get upgraded on a plane.
B.How to get on the flight safely and on time.
C.The best ways to get free flight tickets.
D.How to save a life on a plane quickly.
【小题2】Who can have the chance to get a free upgrade?
A.The person who always obeys the rules on the flight.
B.The person who doesn't have to look after a patient.
C.The person who is a friend of the flight attendants.
D.The person who flies a lot and has a long flying distance.
【小题3】Why might medical personnel be allowed to sit in business or first class sometimes?
A.Because they would like to talk with flight attendants kindly.
B.Because they want to have a better rest after a long journey.
C.Because they need to treat a passenger who is in emergent condition.
D.Because they are tired of staying with common passengers.
【小题4】Where can we find the passage?
A.A life guide.B.A travel guide.
C.A shopping guide.D.A pilot guide.

同类题4

   Searching for airfares often seems like a game that passengers are bound to lose.

Prices change from day to day, even minute to minute. Looking through various websites for the best deal can be a big challenge. Even when you do book, there’s no guarantee that you are going to get the best price.

“You just don’t know when to pull the trigger. It’s not like buying anything else I can think of,” said George Hobica, founder of Airfarewatchdog. com.

Harriet Levy paid $ 179 for a recent round-trip flight on American Airlines between New York and Fort Lauderdale, Florida. Sitting just one row behind her, Shirley Harrison paid $ 215. A few rows back, Ellis and Dianne Traub paid $ 317 each. There were at least 12 fares on the flight, ranging from $ 169 to $ 360.

“There’s no reason for it,” Harrison said.

Fares can vary significantly in just a few hours. One Delta flight from New York to Los Angeles jumped from $ 755 to $ 1,143 from a Friday to Saturday in late April, and then fell to $ 718 on Sunday.

The flight was one of a dozen the Associated Press(美国联合通讯社)followed over three months for a vacation between July 16 and 22. The number one finding: avoid booking tickets on weekends. It’s the most expensive time to buy.

There’s no way to guarantee the best fare. But before booking, travelers should pay attention to this additional advice:

● Book on Tuesday, Wednesday and Thursday. That’s when airlines most often offer sales.

● Buy in advance, but not too early. The best time is four to six weeks before traveling. In general, prices for any given flight are the highest when tickets are booked eight to ten weeks and two to three weeks in advance.

● Make use of social media. Airlines are giving more benefits like exclusive(专有的)sales to travelers who interact(交流)with them on Twitter and Facebook. Those specials are often gone within hours.

● The so-called discount airlines — JetBlue, Air-Tran, Southwest and Frontier — adjust their fares less frequently than other airlines, so you can feel more confident that the price will stay the same. But their prices aren’t always the lowest. Researching multiple airlines’ fares is the only way to get a good deal.

【小题1】What can we infer from the first sentence of the text?
A.Passengers are unable to search for airfares.
B.Airlines often play games with passengers.
C.Airfares are set in different situations.
D.It’s difficult for passengers to get the best price.
【小题2】What does the underlined phrase “pull the trigger” Paragraph 3 probably mean?
A.Start searching.
B.Get the highest price.
C.Make a purchase.
D.Get on the plane.
【小题3】By using a lot of figures, the author intends to ________________.
A.show there is a standard price for every single airline
B.discover the rules behind airfares
C.guarantee passengers a low price
D.prove airfares can vary widely
【小题4】Passengers are advised to book flights __________________.
A.in the middle of the weekB.on special websites
C.several months before travelingD.with discount airlines

同类题5

How to Know Yourself Better

Most of us believe that we know ourselves better than anyone in this world. But a lot of people are still strangers to themselves. Why? 【小题1】 For a person, to have a well-lived life, it is important that he know himself well. If you are one of those who are striving to know yourself better, these steps will guide you.

·Take a moment to write down things that you know“very well”about yourself - your interests,likes, dislikes, hobbies, strengths, weaknesses,hopes, fears, dreams, etc. 【小题2】 By creating a list of your personal qualities that you are familiar with, you are keeping yourself in touch with yourself.

·Take personality and psychological tests. This is another way to know yourself better. The Internet has a rich source of free online personality and psychological assessments and tests. 【小题3】

·Know yourself better by understanding people's opinions of you. 【小题4】 Sometimes, you think you know yourself enough, but other people who see you from their point of view can offer you some insights into how you act and get understood by others. Be careful,however, to balance both opinions to come up with an objective view of yourself.

【小题5】 It's a lifetime process. Every day you will be given new insights about yourself. Writing a diary will help you keep track of these new discoveries. Maintaining that hunger to know yourself better will make you more self-aware, opening up  new opportunities to enrich your life.

A.Keep on learning who you are.
B.Remember that you are a worthy person.
C.By answering them, you will understand yourself better.
D.Reflect on these qualities and find out how they impact your life. .
E.The better you know yourself, the easier it will be to love yourself.
F.Pay attention to what your family, friends,coworkers, etc. say about you.
G.Not everyone is courageous enough to travel the path to achieve a better self-understanding.