Recently tourism has a great _____ on the wildlife in my hometown, which causes complaints.

A. effort　 B. effect　　 C. affect　　 D. reflect

All the people ____the meeting were very important.

A. attending　 B. present C. attended D. presented

Although the working mother is very busy, she still ____ a lot of time to children.

A. devotes      B. spends      C. leads      D. provides

Overpopulation is a terrible threat to the human race. Yet it is probably ____a threat to the

human race than environmental destruction.

A. no more　　　　 B. not more 　　　C. even more　　 D. little more

I was just talking to Margaret when Jackson　　 .

A、cut in　　 B、cut down　　 C、cut out　　 D、cut up

The examination turned _____ to be very easy.

A. on 　 B. in　 C. off 　 D. out

When a rare disease ALD threatened to kill the four-year-old boy Lorenzo, his parents refused to give up hope. Doctors explained that there was no cure for ALD, and that he would probably die within three years. But Lorenzo’s parents set out to prove the doctors wrong.

The parents devoted themselves to keeping their son alive and searching for a cure. But doctors and the families of other ALD patients often refused to take them seriously. They thought the efforts to find a cure were a waste of time, and drug companies weren’t interested in supporting research into such a rare disease.

However, the parents still refused to give up and spent every available hour in medical libraries and talking to anyone who would help. Through trial and error, they finally created a cure from ingredients (调料) commonly found in the kitchen. The cure, named "Lorenzo’s Oil", saved the boy’s life. Despite the good results, scientists and doctors remained unconvinced. They said there was no real evidence that the oil worked and that the treatment was just a theory. As a result, some families with ALD children were reluctant to try it.

Finally, the boy’s father organized an international study to test the oil. After ten years of trials, the answer is: the oil keeps ALD children healthy.

1. Doctors said that Lorenzo might die within three years because_____ .

A. they had never treated the disease before　 B. Lorenzo was too young to be cured

C. no cure had been found for ALD　　　　　　 D. ALD was a rare disease

2. The families of other ALD patients thought that _____ .

A. the research for the new cure would cost too much money

B. the efforts of Lorenzo’s parents were a waste of time

C. Lorenzo’s parents would succeed in finding a cure

D. Lorenzo’s oil was a real cure for ALD

　 3. Scientists and doctors believed that Lorenzo’s Oil_____.

　　 A. was really effective　　　　　　　　　　 B. was a success story

　　 C. only worked in theory　　　　　　　　　 D. would save the boy’s life

　 4. From the passage we can conclude that_____.

　　 A. doctors remain doubtful of the effectiveness of the cure

　　 B. many ALD patients still refuse to use the oil

　　 C. various cures have been found for ALD

　　 D. the oil really works as a cure for ALD

The ______ (身份) of the dead man is still unknown.

The boy student is poor in health now; his parents wish that his health _____when he grows up

A. can improve　　 B. could improve　　

C. can be improved　 D. could be improving

KidZania is an indoor park that lets children try out the professions

they　　 choose in the future.

A. must B. should C. might D. can