Humanity uses a little less than half the water available worldwide. Yet occurrences of shortages and droughts (干旱) are causing famine and distress in some areas, and industrial and agricultural by-products are polluting water supplies. Since the world’s population is expected to double in the next 50 years, many experts think we are on the edge of a widespread water crisis.
　 But that doesn’t have to be the outcome. Water shortages do not have to trouble the world---if we start valuing water more than we did in the past. Just as we began to appreciate petroleum more after the 1970s oil crises, today we must start looking at water from a fresh economic perspective. We can no longer afford to consider water a virtually free resource of which we can use as much as we like in any way we want.
　 Instead, for all uses except the domestic demand of the poor, governments should price water to reflect its actual value. This means charging a fee for the water itself as well as for the supply costs.
　 Governments should also protect this resource by providing water in more economically and environmentally sound (健康的) ways. For example, often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions (凹地) and pumping it to nearby cropland.
　 No matter what steps governments take to provide water more efficiently, they must change their institutional and legal approaches to water use. Rather than spread control among hundreds or even thousands of local, regional, and national agencies that watch various aspects of water use, countries should set up central authorities to coordinate (调整) water policy.
【小题1】What is the real cause of the potentials water crisis.

假定你班在“珍爱生命，拒闯红灯”教育活动中，召开了一次主题班会。请你根据下表中的内容，用英语写一篇短文。

What’s that smell? Do you hear that noise? Taste this! Look at me! Feel this, isn’t it soft? When you hear, or even use these phrases, you probably don’t stop to think about why we use them. Well, it’s because of our senses. Without us even knowing, our sense organs (nose, eyes, ears, tongue, and skin) are taking in information and sending it to the brain for processing. If we didn’t have them, we would not be able to smell, see, hear, taste, or touch anything!

Senses are the physical means by which all living things see, hear, smell, taste, and touch. Each sense collects information about the world and detects changes within the body. Both people and animals get all of their knowledge from their senses, and that is why senses are so important.

All senses depend on the working nerve system. Our sense organs start to work when something stimulates（刺激） special nerve cells, called receptors, in a sense organ. Once stimulated, the receptors send nerve impulses along sensory nerves to the brain. Your brain then tells you what to do. For example, your sound receptors are often attacked by billions of sound waves. When these signals reach the part of the brain called the cerebral cortex（大脑皮层）, we become conscious of the sounds.

Our group really learned a lot about the senses while creating this website. We hope that you are able to get just as much out of it. Please feel free to comment about anything on the site by e-mailing us. Also, don’t forget to sign the guest book! Thanks for visiting our site. Come back soon!

60. This article is most probably taken from a _____.

A. newspaper             B. magazine                 C. website                 D. novel

61. Senses are very important because _____.

A. both people and animals get all of their knowledge from them

B. they are used to communicate with others

C. they can prevent the organs from being attacked

D. they can tell you what the stimulus is

62. Which of the following tells you what stimulate you?

A. The nerve cell.      B. The receptor.          C. The nerve impulse.   D. The brain.

63. According to this article, the following are all functions of the senses, EXCEPT _____.

A. collecting information about the world  

B. detecting changes within the body

C. sending nerve impulses to the brain 

D. serving the brain when needed

Humans aren't the only species on the planet with a penchant for electronic gadgets(小配件）.Zookeepers across the US and Canada are discovering that apes also get excited about Apps.
As part of a program called"Apps for Apes",12 zoos across the two countries have been introducing iPads into the entertainment time for orangutans,the giant furry red primates native to Indonesia and Malaysia.
"We are finding that,similar to people,they like touching the tablet,watching short videos of David Attenborough for instance,and looking at other animals and orangutans," said Richard Zimmerman,founding director of Orangutan Outreach,the non-profit that runs the program.
Twice weekly,orangutans are provided with access to the tablets.The animals spend from 15 minutes to half an hour using different Apps depending on their attention span.Apps designed for children that stimulate activities such as painting,music and memory games are among the most popular Apps with the apes.
"It is a lot like when we're showing children pop-up books,"said Zimmerman,adding that the orangutans are among the most intelligent primates,with the intelligence level of a young child.
The program,which relies on donated iPads, will soon be expanding to zoos across Australia, New Zealand, Japan and Europe.
【小题1】The word"penchant" in the first paragraph is closest in meaning to________________.

Having one of those days—or weeks—when everything seems to annoy you? Even if you do nothing about it, your bad mood(心情) will probably go away after some time. But with a little effort, you can forget it much faster—often within a day or two.

    Walk it off

     Exercise is the most popular bad ­mood buster. A person who's in a bad mood has low energy and high tension. Taking a fast ten­-minute walk, or doing some quick  exercises can do wonders towards changing the bad mood.

Tune it out

Listening to your favorite music for a while can also make tension go away quickly, because music starts connection with past positive experiences we've had.

Give yourself a pep talk

    Stop and listen to what's on your mind. Bad moods are often started by too many negative thoughts. Write them all down on paper, the pessimistic(悲观的) messages you've been giving yourself, and then give optimistic answers. (“I still don't have a job.” vs “I have two interviews next week.”)

Reduce your stress

Relaxation techniques are wonderful mood­lifters. These include deep breathing, stretching and visualizing(想像), all of which sound complicated(复杂的) but aren't. One easy way to visualize: close your eyes and picture a favorite place, such as the beach. Another simple way to distress is to make a to­do list. One reason for being in a bad mood is feeling you have no options. By taking control over certain areas,  you realize you're not helpless. You can make changes in your mood and life.

Avoid things that won't improve your mood

TV may not help much: you need to increase your energy level and stimulate(刺激) your mind—something that the TV show “Neighbors” won't do. And before you reach for that piece of cake and coffee, think about how mood and food are linked. Sugar and caffeine contribute to depressed moods. The better choice? Research shows that carbohydrates, such as potatoes and pasta(面食), produce calming effects in people who have a desire for them.

1.Which of the following may help us stop a bad mood?

A. Doing nothing about it           B. Exercising and enjoying music.

C.Writing down negative thoughts    D.Talking about it with neighbors.

2.Why is it suggested that you close your eyes and picture the beach?

A. It helps remove bad mood.         B. It brings us a new technique.

C. It is not complicated to do so.       D. It is an area to be easily controlled.

3.TV may not improve your mood because it _____________.

A. shows what happens around you       B. does not energize you

C. reminds you of eating and drinking     D. produces a calming effect

4.Which would be the best title for this passage?

A. Energy Level and Stress       B. How to Beat a Bad Mood

C. Bad Mood and Our Life       D. How to Control Your Feeling