8．The advertisement is mainly aimed at ________.

　A. students　　B. parents　　 C. teachers　　D. adults

C

　The vitamins necessary for a healthy body are normally supplied by a good mixed diet, including a variety of fruits and green vegetables. It is only when people try to live on a very restricted diet, say that when trying to lose weight, that it is necessary to make special provisions to supply the missing vitamins.

　An example of the dangers of a restricted diet may be seen in the disease known as “beri-beri”,which used to make large numbers of Eastern people who lived mainly on rice suffer. In the early years of last century, a Dutch scientist named Eijkman was trying to discover the cause of beri-beri. At first he thought it was transmitted(传播)by a germ(病菌). He was working in a Japanese hospital, where the patients were fed on polished rice which had had the outer coverings removed from the grain, it was thought this would be easier for weak and sick people to digest.

　Eijkman thought his germ theory was proved when he noticed the chickens in the hospital yard, which were fed on remains from the patients’plates, were also showing signs of the disease. He then tried to separate the germ, which he thought was causing the disease, but his experiments were interrupted by a hospital official, who ordered that the rice without coverings, even though left over by the patients, was too good for chickens. It should be recooked for the patients, and the chickens should be fed on cheap, rough rice with the outer coverings still on the grain.

　Eijkman noticed that the chickens began to recover on the new diet. He began to consider the possibility that eating unmilled rice(糙米)somehow prevented or cured beri-beri - even that a lack of some ingredient(成分)in the coverings may be the cause of the disease. Indeed this was the case. The element needed to prevent beri-beri was shortly afterwards separated from rice coverings and is now known as vitamin B. The milled rice, though more expensive, was in fact causing the disease the hospital was trying to cure. Nowadays, this terrible disease is much less common thanks to our knowledge of vitamins.

7．What is the purpose of the text?

　A. To give information about different schools.

　B. To compare home schools with other schools.

　C. To suggest a new method of school education.

　D. To persuade people to choose home schools.

6．All of the following are true of home schools EXCEPT that ________.

　A. students are free to choose their courses

　B. students do well in important national tests

　C. they help students find jobs

　D. they help students to be independent

5．We can learn from the first paragraph that ________.

　A. many schools armed their students with weapons

　B. violence and crime exist in many schoolyards

　C. students use weapons to defend their schoolyards

　D. weapons are more dangerous than drugs

4．According to the passage, the last sentence means ________.

　A. trying to get ready for the trouble in your future life

　B. driving fast in a neighborhood street is dangerous

　C. trying to be more understanding seeing others in trouble

　D. protecting oneself from being hurt

B

　Children are our future, and it’s up to us to arm them with the tools to succeed. Sadly, today’s children are being armed with more dangerous toolslike weapons (武器), drugs and gangs. Once a relatively peaceful environment, many schoolyards of today are becoming unsafe for both students and teachers.

　Home schools are available to give you choices. Home schooling provides top-quality education, flexibility, and freedom to create your own schedule(日程表). At Heritage Home School we believe the choice should be yours.

　Thanks in part to modern technology, home schooling information is becoming readily available across our nation. A recent study by the ITBS (Iowa Tests of Basic Skills) and TAP (Tests of Achievement and Proficiency) shows us that students of home schools do particularly well when compared with the nationwide average. In every subject at every grade level, students of home schooling scored obviously higher than those in public and private schools.

　If you’re new to home schooling, you may be asking yourself, “Will home schools really work for my children?”

　Fact: A nationwide study using a random(任意)selection of 1,516 families found students of home schooling to be scoring, on average, at or above the 80th percentile in all areas on standardized achievement test.

　Note: The national average on standardized achievement tests is the 50th percentile.

　Collectively, the staff at Heritage Home School brings 65 years of experience in home schooling curriculum. We’ve placed students in the top 2 % of the nation in math and many are successfully moving on to college.

　One study found that of the home schooled adults, 0% were unemployed, 0% were on welfare and 94% said home education prepared them to be independent persons.

　For more home schooling information, call us today toll free at 1 (877) 532-7665.

3．What can we learn from the passage?

　A. Josh would accept the money from the kids.

　B. The two kids were Josh’s neighbors.

　C. Josh was a kind-hearted man.

　D. Josh’s new car broke down easily.

2．Which of the following is the right order of the story?

　a．The younger brother threw a brick at Josh’s car.

　b．The elder brother fell out of his wheelchair.

　c．The younger brother begged Josh for help.

　d．Josh lifted the elder brother back into his wheelchair.

　e．Josh shouted at the younger brother.

　A. b, a, e, c, d　B. a, c, d, b, e　 C. b, a, c, e, d　 D. a, c, b, e, d

1．The boy threw a brick at the businessman’s car because ________.

　A. the businessman drove at a high speed

　B. he envied the brand-new car very much

　C. he wanted to ask for some money

　D. he wanted to get help from the driver

20.　 The writer believes that sooner or later__________.

A. man can’t deal with all the problems he can find because of the limits of human knowledge

B. man can find solutions to whatever questions concerning nature he can think up.

C.　 questions concerning nature are outside the field of scientific research

D.　 man can think up all the questions and answer them all

19. What is the writer’s attitude towards science?

A. He is sorry because of the ignorance of scientists

B. He is delighted because of the latest scientific findings

C. He is doubtful because of the great difficulties in scientific research.

D. He is confident though he knows well the great difficulties in scientific research.