You may know about “ junk food” like French fries. But do you know about “junk sleep”?
Recently, a British survey found that electronic(电子) products in teenagers bedrooms are affecting(影响)their sleep.
The survey was done among 1,000 British kids from 12 to 16. It found that thirty percent of them got just 4 to 7 hours sleep every day. But doctors say they need 8 to 9 hours.
Almost a quarter of the kids said they fell asleep more than once a week while watching TV, listening to music or using other electronic products.
“This is very worrying.” Said Dr Chris Idzikowski, a British expert, “We call it ‘junk sleep’, It means you don’t get enough sleep and the quality of the sleep is bad, too. If you don’t get good rest, you don’t perform well in school the next day.”
The survey found that 40 percent of the kids felt tired each day, with girls between 13 and 16 feeling the worst. Nearly all the teenagers have a phone, Mp4 or TV IN THEIR BEDROOM. And many of them have all three.
小题1: This passage is mainly about______.

A．junk food	B．junk sleep
C．electronic products	D．the importance of sleep

小题2: _______of the children in the survey sleep only 4 to 7 hours a day.

A．200	B．300
C．500	D．1,000

小题3:“Junk food” and “junk sleep”are similar to each other in the way that_______.

A．they are both low in quality	B．they are both produced in factories
C．people enjoy both in their spare time	D．they are both good to people’s health

小题4: Which of the following is TRUE according to the passage?

A．Teenagers need 4 to 7 hours of sleep each day.

B．Few of the teenagers have a phone in their bedrooms.

C．Teenagers spend too much time on electronic products.

D．Girls between 15 and 16 spend the least time on electronic products.

小题5: Which of the following is the best solution to the problem?

A．Parents watch TV together with their children

B．Forbid teenagers to use any electronic product.

C．Teenagers limit (限制) their use of the electronic products.

D．The use of mobile phone and Mp4 is not allowed at school

Seeing a volcano erupt (喷发) is a wonderful experience, and you can really feel the heat by climbing to the summit of Pacaya for a close-up view. There are guided tours every day up this highly active volcano from Antigua. Giving travelers a chance to see Mother Nature at her most powerful (强大的).
Pacaya is an easy drive from Antigua, a beautiful city with many colorful houses along its old streets that are turned into art-works during its Holy Week festival. No matter when you come to Antigua, you won’t miss the Pacaya-tour companies.
But climbing Pacaya is no easy job: it is 2,560 metres high and reaching the summit takes two to three hours of seemingly one-step-forward and two-step-back movements. As you climb, you hear the sounds of eruptions high above. Smoke, hot remains from recent eruptions begin to line the path as you near the active summit: the McKenney Cone (火山锥). Just as though you were going to walk over to the edge of the cone, the road turns to the left and up to the safety of the old, inactive summit.

Many tours are timed so that you arrive at the cone of the volcano in plenty of time for sunset and the full scene of the erupting red lava (熔岩) in the darkening sky. On a good day the view from the summit is really exciting. The active mouth boils, sending red lava over its sides, and once in a while shoots hot streams up to 100 metres into the air. There is a strong bad smell in the air even if you take care to be upwind of the cone. As evening turns deeper into the night, the burning lava quietly falls down the side of the volcano. For you, too, it is time to get down.
小题1:Many tours are timed for people to _____.

A．get down the mountain in time when night falls

B．avoid the smell from the upwind direction of the cone

C．enjoy the fantastic eruption against the darkening sky

D．appreciate the beauty of the 2,560-metre-high mountain

小题2:The word “summit” appears several times in the passage. It means _____.

A．remained, cooled rocks along the path

B．loud sound and terrible smell in the air

C．the most exciting happening in a place

D．the top point of a mountain or hill

小题3:What is the main purpose of this passage?

A．To have more tourists come to Pacaya.

B．To describe the beauty of Pacaya.

C．To introduce guided tours to Pacaya.

D．To explain the power of nature at Pacaya.