4、When people get bad toothaches, they often have to eat soft, easily chewed food. When lions get bad toothaches, they eat people? That' s the conclusion of a zoologist at the Field Museum of Natural History in Chicago and a dentist who works on carnivores (食肉动物)., Lions don’t normally prey on people. Every once in a while, however, a lion will go on a human-eating diet. The most famous such tragedy happened in 1898, when two lions killed and ate 135 railway workers in Kenya.

Examining the preserved skulls (骷髅) of the two big cats, zoologist Bruce Patterson and dentist Ellis Neiburger found that both animals had been suffering from several dental and |aw problems. One lion had three missing teeth and a loose, unsteady lower canine that was probably useless. Canines are pointed teeth that hunting animals use for gripping and piercing prey(刺穿猎物)) .The two lions might have been so badly disabled that they couldn’t bite down forcefully, say the researchers. Consequently, the lions might have abandoned their normal, more difficult prey and turned to humans. "Humans are easy preys, " said Patterson. "We're very slow, we don’t hear very well, and we don* t see very well in the darkness. "

The research calls their idea the Infirmity Theory. It was inspired partly by the work of Jim Corbett, a tiger hunter in India in the 1930s. Corbett was regularly called in to hunt tigers that had been dining on Indian villagers. Time after time, Patterson discovered that the killer tigers were suffering from some ill-healthy conditions.

64. The original aim of the study is to look for ____.                               

A. ways of protecting wild animals           B. ways of treating toothaches of lions

C. when and where lions eat people          D. reasons for some lions eating people

65. The reason why lions don't normally prey on people is ____.

A. that they like wild preys better              B. they just hunt for prey at night,

C. that humans are difficult to catch          D. not mentioned in the passage

66. Jim Corbett' story is mentioned in the last paragraph to show that ____.

A. tigers have the same eating habits and preys as lions

B. carnivores hunt people mostly under ill-healthy conditions

C. tigers like hurting villagers while lions like railway workers     

D. wild animals swallow humans when they suffer from toothaches   .

67. The best title of the passage could be ____.

A. A Zoologist And a Dentist                     B. Why Do Some Wild Animals Eat People

C. A Discovery of the Skulls of Lions        D. How Can Health Influence Eating Habits

3、Have you ever had the strange feeling that you were being watched? You turned around and, sure enough, someone was looking right at you!

Some parapsychologists （心理学家） say that humans have a natural ability to sense when someone is looking at them. To study whether such a "sixth sense" really exists, Robert Baker, a psychologist at the University of Kentucky, performed several experiments.

In the first one. Baker sat behind unsuspecting people in public places and stared at the backs of their heads for 5 to 15 minutes. The subjects were eating, drinking, reading, studying, watching TV, or working at a computer. Baker made sure that the people could not tell that he was sitting behind them during those periods. Later, when he questioned the suspects, almost all of them said they had no' idea that someone was staring at them. 

For the second experiment. Baker told subjects that they would be stared at from time to time from behind a two-way minor in a lab setting. The people had to write down when they felt they were being stared at and when they weren’t. Baker found that the subjects were no better at telling when they were stared at than if they had just guessed.

Baker’s experiment concludes again that people do not have the ability to sense when they are being stared at. If you doubt the outcome of his two experiments, I suggest you repeat the experiments and see for yourselves.

60. The first experiment made by Baker shows that ____.

A. people can’t realize it when they are watched secretly

B. one can't sense other people’s watching when they are talking

C. people have no idea about the sixth sense of human beings

D. the sixth sense doesn’t work during the first 5 or 15 minutes

61. The second experiment differs from the first one in that ____.

A. the subjects were not directly stared at from time to time

B. the subjects had to write something down in a lab sitting

C. the subjects were good at guessing when they were stared at

D. the subjects were informed of the purpose of the experiment

62. What is the author's attitude towards the result of the experiment? ____.

A. Support           B. Doubt           C. Sympathy        D. Surprise

63. We can infer from the passage that ____.                       

A. it’s most probable that humans have six senses

B. the so-called sixth sense doesn’t exist in human beings

C. the experiments done by Baker hardly explain anything

D. people should make conclusions by themselves

2、Patricia Blues, 29, has a new aim in life: to keep drivers' hands on their steering wheels and off their cell phones. On November 2, 2007, Blues lived through a horrible experience. A motorist dialing a cell phone drove through a stop sign at 45 miles per hour and run into the side of Blues' car. Blues' 2-year-old daughter was killed immediately in the crash.

Blues has since dedicated her time to pushing for laws that would prevent this type of tragedy from happening again.

Cell phones are not the only distractions (分神) that cause accidents. Eating, changing CD, reading maps, talking to passengers, and just reaching for an object on the floor can be dangerous. Therefore, the emphasis should be on educating drivers to avoid all distractions. However, talking on cell phones might be easier to regulate than eating or changing music. At least 34 states have already passed laws to restrict cell phone use in moving cars. No state has banned it yet, but several U. S. cities have. Worldwide, 13 nations, including Australia, England, Germany, Japan and China have banned drivers' use of cell phones in moving cars.

To date, no scientific evidence has been published showing that talking on the phone affects driving safety. But according to a test by some high school students, "driving while on the phone does affect safety and probably shouldn't be done".

56. What happened to Patricia Blues last November? ____.

A. She was seriously injured in a car crash  

B. She lost her daughter in a road accident

C. She broke the traffic rules at a bus stop  

D. Her vehicle was destroyed by a motorbike

57. The tragedy was caused by ____.

A. Blues' lack of driving experience

B. the motorist’s failure of seeing the stop sign

C. Blues' poor car conditions

D. the motorist's absence of mind while driving

58. Patricia Blues' new goal of life is to persuade the government ____.

A. to prohibit the carrying of cell phones in cars

B. to educate drivers to avoid all distractions

C. to ban talking on the phone while driving

D. to study, harmful results of using cell phones

59. Which of the following is TRUE according to the text? ____.

A. Using cell phone while driving is easier to be controlled by law than other distractions

B. It is more important to make laws than educate drivers to be aware of driving safety

C. Driving while on the phone is firmly against only by some students from high school

D. It is extremely urgent for the cities with a large population to restrict using cell phones   

1、Every country has its own dining customs. Americans feel that the first rule of being a 36  guest is to be on time. If a person is invited to dinner at six thirty, the hostess 37 him to be there at six thirty or 38  a few minutes after. Because she usually does the cooking, she has to time the meal 39 the hot rolls and the coffee and the meat can be at their best when the guests come. If they are late, the food will not be so 40 , and the hostess will be 41 . 42 the guest cannot come on time, he should call his host or hostess on the phone, give the reason, and tell 43 what time he can come.  44 the situations, guests sometimes bring a box of candy, a bottle of wine or a bunch of flowers to give to the hostess as a 45 of appreciation.

As guests continue to arrive, it is usually considered polite for the  46 in the group to 47 when a woman enters the room and continue to stand until she is seated.  48 , most young people and some groups of elder people  49 stress equality of the sexes no longer observe the custom. A visitor should be 50 to each situation and follow the lead of the Americans present.

When the guests sit down at a dinner table, it is a 51 for the men to help the ladies by pushing their chairs under them. However, some Americans  52  do this, so the visitors must notice what others do and do the  53  . 54 the meal is under way and if the dinner is in a private home, a guest 55 avoid embarrassment by leaving talk to someone else.

24、----What time do you start work?

---- _____________.

  A. It’s none of your business.        B. It varies.

  C. From 8 a.m. to 4 p.m.                 D. It doesn’t make any difference

23、Jack’s room always has the dusty smell of an apartment whose windows are　opened.

A．rarely                   B．generally             C．apparently           D．frequently

22、On the top of the hill _____ , _____ the old man once lived.

A. a temple stands there; in which        B. a temple standing; on which

C. does a temple stand ;where             D. stands a temple; where

21、 ―_____ the football match might be put off.

―Yes. Well, it all depends on the weather.

A. I had been told         B. I've told          C. I'm to be told     D. I've been told

20、 Mr. Joe, principal of the school, advised that all the kids _____ the burdens if they wanted to do better.

A. carry out              B. put away          C. break down       D. get off

19、― Tom failed in the math test.

― Just as I had expected. He is too lazy. However, he's ___ but stupid.

A. anyone                B. no one           C. anything         D. nothing