【推荐2】This must be universally acknowledged: Exercise is good for your body. The question of how much exercise is best, though, is open to debate. The answer often depends on your goals. For heart health, sessions four to five times weekly might be ideal. For mental health? As The Independent reports, scientists believe there’s a pretty specific prescription (处方): Exercising for 45 minutes three to five times a week.

The data comes from a new and expansive observational study published in The Lancet Psychiatry and conducted by researchers at Yale and the University of Oxford. The study examined 1.2 million subjects who filled out the Behavioral Risk Factor Surveillance Survey at two-year intervals (间隔) between 2011 and 2015. Subjects who didn’t exercise at all had an average of three-and-a-half days per month when they felt mentally unwell—stressed, depressed, or otherwise burdened by emotional problems—while those who exercised regularly reported an average of just two days.

The study found that having three to five 45-minute sessions a week was best for reducing the reported instances of feeling stressed or depressed. Exercising for longer periods—some subjects reported over 90 minutes in the gym—was associated with a drop-off in mental health benefits. Subjects who spent three hours at a time exercising actually reported an increase in depressive symptoms (症状).

Researchers also found that the kind of exercise undertaken made a difference. While all varieties helped, people who participated in team sports promoting social interaction and gym classes like cycling described greater self-satisfaction with mental health.

Because the study involved self-reported outcomes and exercise wasn’t monitored, it’s possible that the participants could have misinterpreted the volume of exercise performed. The study, however, makes a convincing case for a popular notion: If exercise were a pill, doctors everywhere would be prescribing it.

1. What decides the ideal amount of exercise for an individual according to the text?

A．His exercise routine.

B．His physical condition.

C．What sports he prefers.

D．What he expects to improve.

2. How did the subjects participate in the study?

A．By filling out a survey.

B．By attending gym classes.

C．By interviewing researchers.

D．By reading about health benefits.

3. What effect was demonstrated by exercising for over 90 minutes?

A．No change in mental health.

B．Improved mental health benefits.

C．A drop-off in mental health benefits.

D．Increased physical health benefits.

4. What limitation of the study was mentioned in the text?

A．Exercise process wasn’t monitored.

B．Only one type of exercise was studied.

C．The study did not include any real subjects.

D．Subjects could have misreported exercise amounts.

【推荐3】Getting Ready for Yoga

Feeling tired? Under too much stress? Well, you may want to try Yoga (瑜珈). It’s what more and more people have been turning to release the trouble of modern life. Practically unheard of in the West until 50 years ago, Yoga has become one of the most popular health trends around the world, including China. If you search for Yoga on line in Chinese, lots of pages are there to see, most of which are main pages of Yoga clubs. In order to keep fit and lose weight, many girls spend more than 1000 yuan taking part in Yoga classes every month.

However, are you really ready for it? There are several things you need to know before you really take it.

First, do not force your body too much. Yoga has many difficult poses. They are beautiful and worth boasting if you could finish them. But if you force yourself to do as exactly as an experienced Yoga teacher does, you may hurt your body, instead of strengthening it. Do you remember you original purpose for playing Yoga? It is self -building, not competing.

Second, do some research about the Yoga class that you are to registering. Yoga is new in China and there are not so many certificated well-trained Yoga teachers. Some not well organized clubs just find someone learn a little Yoga and certificate them. But be aware, a non-eligible teacher might wrongly guide you and you could not benefit from the classes much except that they force you to exercise your body a bit. Considering about the large amount of money you invest in it, it’s worth and reasonable to make sure the teachers in the club are qualified before you join.

Third, it would be better to learn something about nutrition when you practice Yoga. In the very beginning, Yoga was part of the Vedas, bible of the traditional Indian philosophy. So it could be regarded as a kind of lifestyle. When you have decided to care for your body, why not feed it properly? In fact, good clubs have their own nutritionists.

Anyhow, make sure you are ready before you act. The trend may change quickly, but you can benefit from practicing yoga anyway.

1. The underlined word” non-eligible” in the 4^th paragraph most probably means ________.

A．unqualified	B．in experienced
C．unrespectable	D．unpopular

2. Which of the following is the author’s advice?

A．Get some knowledge about Vedas when practicing yoga.

B．What you want to achieve in doing yoga is to compete.

C．Choose whatever yoga club you like.

D．Don’t blindly follow the trends in yoga.

3. The author’s main purpose in writing the article is to ______.

A．tell people ways to relax under too much stress.

B．offer some suggestions to those who want to take yoga classes.

C．explain to people the benefits of taking yoga classes.

D．inform people of what kind of yoga clubs they should turn to.

4. From the advice offered by the author, we can conclude that _______.

A．it is easy for you to accomplish the poses in yoga.

B．research is needed after you register for the yoga class.

C．yoga has something to do with culture.

D．you can rely on all the teachers in yoga clubs.

【推荐1】The historic center of Vienna has been added to UNESCO's World Cultural Heritage list. Thus, St. Stephen's Cathedral, the Imperial Palace and many other historic buildings are now recognized as being among the 700 outstanding cultural and natural monuments of mankind - others include the Pyramid Fields from Giza to Dahshur, the historic center of Rome, the Kremlin with the Red Square, the Chinese Wall, the Taj Mahal and the Grand Canyon.
Vienna's historic center, in its unity, is considered one of the most beautiful city landmarks in Europe. Three eras left their mark on the former residence of the Habsburgs: the Middle Ages with Gothic St. Stephen's Cathedral whose spire points toward heaven, one of Vienna's landmarks; the Baroque whose most important achievement is the Imperial Palace with its sumptuous cupolas (奢华的圆顶). And the Ring Boulevard era of the late nineteenth century, when such splendid buildings as the Vienna State Opera and the Museum of Fine Arts were built to replace the former city walls.
The _______ of the center of Vienna is enhanced (加强) by numerous churches, mansions and parks, as well as by rich art collections gathered by wealthy rulers. And the centuries-old musical tradition ranges from the Court Chapel of the Imperial Palace to Mozart's immortal (不朽的) music and the waltzes of Johann Strauss. Also inseperably linked to the center of the city are the delights of Viennese cuisine, the gemütlichkeit of Viennese coffeehouses and nostalgic shopping at former purveyors (伙食承办商) to the imperial court.
1. Which of the following is not mentioned as cultural and natural monuments ofman-kind?

A．the Taj Mahal

B．the Pyramid Fields

C．the Kremlin with the Red Square

D．the Court Chapel

2. The second paragraph is developed mainly by ____.

A．following the order of place	B．providing examples
C．making comparisons	D．analyzing causes

3. What does the underlined words “imperial flair” in the last paragraph mean?

A．culture atmosphere	B．art style
C．royal style	D．royal palace

4. What is the passage mainly about ?

A．The universal value of the world heritage in Vienna

B．Vienna’s becoming one of the cultural and natural monuments of mankind

C．The introduction of the historic center of Vienna

D．The special culture atmosphere of the historic center of Vienna

【推荐3】The need to feed a growing population is putting much pressure on the world’s supply of water. With 97% of the world’s water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture. Although the idea of a water shortage (短缺) seems strange to someone fortunate enough to live in a high rainfull country, many of the world’s agricultural industries experience constant water shortages.
       Although dams can be built to store water for agricultural use in dry areas and dry seasons, the costs of water redistribution (重新分配) are very high. Notonly is there the cost of the engineering itself, but there is also an environmental cost to be considered. Where valleys (山谷) are flooded to create dams, houses are lost and wildlife homes destroyed. Besides, water many flow easily through pipes to fields, but it cannot be transported from one side of the world to the other. Each country must therefore rely on the management of its own water to supply its farming requirements.
       This is particularly troubling to countries with agricultural industries in areas dependent on irrigation (灌溉). In Texas, farmers’ overuse of irrigation water be resulted in a 25% redcution of the water stores. In the Central Valley area of south eastern USA, a huge water engineering project provided water for farming in dry vallege, but much of the water use has been poorly managed.
       Saudi Arabia’s attempts to grow wheat in desert areas have been the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping will see them run dry.
1. From the first two paragraphs we learn that _______.

A．much of the world’s water is available for use

B．people in high rainfll countries feel lucky

C．the costs of water redistribution should be considered

D．water can be easily carried through pipes across the world

2. Which of the following is true?

A．The water in Texas have been reduced by 75%.

B．Most industries in the world suffer from water shortagers.

C．The underground water in Saudi Arabia might run out in 50 years.

D．Good management of water use resulted from the project in the Central Valley.

3. What is most likely to be discussed in the paragraph that follows?

A．Steps to improve water use management.

B．Ways tor redjuce the costs of builing dams.

C．Measures to deal with worldwide water shortages.

D．Applies to handle the pressure on water supply.

4. The text is mainly about____________.

A．water supply and increasing population

B．water use management and agriculture

C．water redistribution and wildlife protection

D．water shortages and environmental protection.