Gadgets make study fun Now in a world pi...

In the eyes of dog lovers, the dog is man’s best friend. But for much wildlife, loose dogs may be a dangerous enemy, according to a study by a biologist from Utah State University in the US.

Based on much existing research and their own case studies, Julie Smith of Utah State University and four other scientists conclude that loose dogs may represent a huge danger to wildlife, especially endangered species, by hunting down or worrying them and by spreading diseases. They also found that dogs, their worldwide numbers around 500 million, can cause more damage to wildlife and livestock(牲畜) than wolves and other enemies of these animals.

Smith gave examples from the US state of Idaho, where research showed the presence of dogs reducing some deer populations. On the Navajo American Indians’ reservation in northeastern Arizona, packs of loose dogs are attacking livestock. They have killed populations of small animals such as rabbits and act as a disease carrier for rabies(狂犬病) among people and other animals, she said. Loose dogs also were to blame for distemper(温热病) outbreak leading to a die-off of endangered black-footed ferrets in northwestern Wyoming in the 1980s.

The phenomenon is not just limited to US; it’s a global problem. Julie Smith once studied three endangered species in central Asia: wild sheep, gazelles and antelope. The rate of injury and death to these animals by loose dogs was very high. In another case, Smith found that dogs, not wolves, as originally suspected, were responsible for a large number of livestock killings in the mountainous Basque country between Spain and France.

Authors of the new study said the problem is likely to worsen as communities expand. Then how to deal with it?

Indeed, in many countries, leash(拴狗的皮带) laws permit punishment of dog owners whose pets attack wildlife. But lawbreakers are rarely punished because the police lack both people and money.

Smith has low-cost solutions to the problem for dog lovers, though. They include public dog-training programs and vaccinating (预防接种) dogs against rabies and other illnesses.

1.Julie Smith’s study mainly tells us that _______.

2.Which of the following statements about loose dogs is TRUE according to the research?

3.Which of the following is among Julie Smith’s solutions to the trouble caused by loose dogs?

4.What is the main point of the article?

A group of class friends，highly successful in their careers，got together to visit their old university professor .The conversation soon   36  into complaints about stress in work and life

Offering his guests coffee，the professor went to the 37 and returned with a large pot of coffee and a variety of  38  —porcelain，plastic，glass，crystal，some   39   -looking，some expensive，some delicate—telling them to  40 themselves to the coffee

When all the students had a cup of coffee in   41  ,the professor said：“If you noticed，all the nice-looking expensive cups were taken up， 42 behind the plain and cheap ones. While it is normal for you to  43 only the best for yourselves，that is the  44 of your problems and stress.

Be assured that the cup itself  45 no quality to the coffee. In most cases it is just more expensive and in some cases even hides what we drink .    46  all of you really wanted was coffee，not the cup，but you  47 went for the best cups.  And then you began   48 each other’s cups.

Now consider this：Life is the   49 ，the jobs，money and   50  in society are the cups . They are Just tools to hold and contain life，and the type of cup we have does not define nor change the quality of life we  51  . Sometimes，by concentrating only on the cup，we  52 to enjoy the coffee God has 53 us.  God brews the coffee，not the cups…Enjoy your coffee!”

The happiest people don’t have the best of everything . They Just 54 the best of everything .

Live simply.  Love generously.  Care deeply . Speak kindly . Leave the 55 to God .

____________, I’ll visit you next Sunday.

To learn English well, we should find opportunities to hear English _____ as much as we can.

LiPing stood silently with her arms ________.