All police officers should be made to take a fitness test every year,with a pay cut for those who repeatedly fail,a review said. In the Metropolitan Police,more than half(52 percent)of its men officers are over- weight, a fifth (22 percent) are obese, and one in 100 are"morbidly obese".For women officers in the Met,a third(32 percent) are overweight,16 percent are obese and 2 per-cent are morbidly obese. Tom Winsor,who has carried out the widest-ranging research of police pay and conditions in more than 30 years,said those who fail the test three times should face a pay cut. Chief constables should be able to fire any officer as part of budget cuts, ending a job for life. It also recommended that applicants should be able to enter the police service directly at inspector rank,and,"after strict testing",at superintendent rank. Mr Winsor said:"I think the public will be surprised that after passing a fitness test when they join the police,physical fitness is not tested again in a 30,35-year career." An initial yearly test requiring officers to reach level 5'4 on the bleep test should be brought in by September next year. This is equal to an average speed of 8. 8kph(5.5mph) for three minutes 35 seconds,he said. But this should get tougher by September 2018,along similar lines to the test currently used in Northern Ireland. This includes climbing over walls and pulling bodies and was designed to reflect situations which"police officers do and can become involved in". Mr Winsor expected that many officers would welcome the proposals,saying they would see it"as a necessary protection for themselves and the public". It is predicted that many officers would like the yearly test because _ * A) they would get healthier after the test B) they could protect themselves and others C) they would be able to get higher pay D) they could practise rock climbing
B
(Question)
Trees should only be pruned when there is a good and clear reason for doing so and , he number of such reasons is small . Pruning involves the cutting away of overgrown and unwanted branches , and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way . First , pruning may be done to make sure that trees have desired shape or size . The object may be to get a tree of the right height , and at the same time to help the growth of small side branches , which will thicken its appearance or give it a special shape . Secondly , pruning may be done to make the tree healthier . You may cut out diseased or dead wood , or branches that are rubbing against each other and thus cause wounds . The health of a tree may be encouraged by removing branches that are blocking up the center and so preventing the free movement of air . One result of pruning is that an open wound is left on the tree and this provides an easy entry for disease , but it is a wound that will heal . Often there is a race between the healing and the disease as to whether the tree will live or die , so that there is a period when the tree is at risk . It should be the aim of every gardener to reduce that risk of death as far as possible . It is important to make the area , which has been pruned , smooth and clean , for healing will be slowed down by roughness . You should allow the cut surface to dry for a few hours and then paint it with one of the materials available from garden shops produced especially for this purpose . Pruning is usually done in winter , for then you can see the shape of the tree clearly without interference from the leaves and also it is very unlikely that the cuts you make will bleed . If this does happen , it is , of course , impossible to paint them properly . Why should running be done ? A) To make the tree grow taller . B) To improve the shape of the tree . C) to get rid of the small ranches . D) To make the small branches thicker .
(Answer)
B
Have you ever seen a 250-mile-wide bath sponge? Well, take a look at Hyperion, one of Saturn's moons. Recent photos of the hamburger-shaped moon reveal a strange world covered with large and small craters . The photos were taken by high-tech cameras aboard the spacecraft Cassini, which has been exploring Saturn and its moons since 2004. Scientists studying the photos have recently identified something surprising: dark and reddish material on Hyperion's surface. They believe that the substance may be organic material, including combinations of the chemical elements hydrogen and carbon. That's important because all life, including human life, is built from organic building blocks. "Organic material is the key to understanding life in the solar system. When we try to understand how life formed on Earth and whether life could form on other planets, this is one of the things we look at," says Dr. Amanda Hendrix. She is a planetary scientist who works on the Cassini project. So how did such material get on a lifeless moon circling Saturn? Scientists suspect it was deposited by meteors . "Craters on Hyperion are the result of meteoroid impact," said Dr. Hendrix. "A meteoroid is the leftover material from the formation of planets." The largest crater on Hyperion is 75 miles across and 6 miles deep! But even though Hyperion looks like a sponge, it most likely doesn't feel like one. Cassini has found that the moon is made mainly of ice. Cassini may give scientists many more surprises. It is scheduled to orbit Saturn until next year, but NASA scientists also hope to extend the spacecraft's mission until 2010. Unlike Earth, which has only one moon, Saturn has 48 moons. The extra two years will give scientists an opportunity to learn more about Saturn's many moons. "This mission not only has given us a lot of answers but also has posed a lot of new questions," says Hendrix. What would be the best title for the passage? A) Exploring Saturn in a Manned Spaceship B) Looking for Life on Saturn C) Uncovering Saturn's Secrets D) Finding Various Craters on Hyperion
C