D）
To many web-building spiders, most of whom are nearly blind, the web is their essential window on the world: their means of communicating, capturing prey（獵物）, meeting mates and protecting themselves. A web-building spider without its web is like a men cast away on an island of solid rock，totally out of touch and destined to starve to death.
So important is the web to an orb-web spider's survival that the animal will continue to construct new webs daily even if it is being starved. For 16 days the starving spider builds completely normal webs. Then, as the animal gets scrawnier（憔悴的）， it constructs a wider-meshed web using fewer strands（線）. Such webs would only trap larger prey, which is more economical from the perspective of a starving spider.
The spider stores energy by recycling web protein. It simply eats its own web each evening and reuses it to produce new silk. In studies with radioactively，labeled materials, it was found that 95 percent of web protein reappears in the next day' web. Most of the energy needed for web-building is used in walking over the strands as they are laid down．
Scientists are impressed by the adaptability of the spider's highly preprogrammed brain, which is larger for its size than the brain of any other invertebrate（無脊推動(dòng)物）．If web-building is interrupted, or if some of the existing strands are destroyed，the spider simply goes back to see where the web is left off and then finishes building a normal web. One spider will finish building the incomplete web of another.
67. Which of the following best expresses the main ides of the passage?
A. Secrets of Spiders' AdaptabilityB. Importance of Webs to Spiders
C. Secrets of the Spiders' Life D. Spiders' Highly Pregrogrammed Brain
68．According to the passage, which of the following statements is TRUE?
A. Mast spiders will stop conducting webs when hungry
B. One Web-building spider usually conducts one web
C. Web-building spiders will probably die without their webs．
D. Web-building spiders have good eyesight.
69. A spider conducts a wider-meshed web when＿
A. it is 16 days oldB. it is getting weaker
C. it has fewer wendsD. it hunts for food
70. A spider's ability to finish an incomplete web proves that＿
A. it has a highly preprogrammed brain
B. it reuses its web protein to reproduce new silk
C. the web is everything for a spider
D. it is able to rebuild a destroyed web
（E）
High school dropouts（輟學(xué)者）earn an average of $ 9,000 less per year than graduates. Now a new study dispels a common belief why they quit. It’s much more basic than flunking out（不及格）.
Society tends to think of high school dropouts as kids who just can’t cut it. They are lazy，and perhaps not two bright．So researchers were surprised when they asked more than 450 kids who quit school about why they left.
“The vast majority actually had passing grades and they were confident that they could have graduated from high school.” John Bridgeland, the executive researcher said. About 1 million teens leave school each year. Only about half of African-American and Hispanic（美籍西班牙的）student will receive a diploma（證書），and actually all dropouts come to regret their decision. So， if failing grades don’t explain why these kids quit, what does? Again，John Bridgeland："The most dependable finding was that they were bored.” “They found classes uninteresting; they weren’t inspired or motivated. They didn’t see any direct connection between what they were learning in the classroom to their own lives, or to their career aspirations.”
The study found that most teens who do drop out wait until they turn sixteen, which happens to be the age at which most states allow students to quit. In the US，only one state，New Mexico，has a law requiring teenagers to stay in high school until they graduate. Only four states: California, Tennessee, Texas and Utah, plus the District of Columbia, require school attendance until age 18, no exceptions, another researcher，says raising the compulsory（義務(wù)的）attendance age may be one way to keep more kids in school．
“As these dropouts look back，they realize they’ve made a mistake. And anything that sort of gives these people an extra push to stick it out and it through to the end, is probably helpful measure.”
New Hampshire may be the next state to raise its school attendance age to 18. But critics say that forcing the students unwilling to continue their studies to stay in school misses the point－the need for reform. It's been called for to reinvent high school education to make it more challenging and relevant, and to ensure that kids who do stick it out receive a diploma that actually means something.
71. Most high school students drop out d' school because＿＿．
A. they have failing gradesB. they take m interest in classes
C. they are discriminated againstD. they are lazy and not intelligent
72. Acceding to the passage，which state has a law requiring school attendance until they graduate?
A. New HampshireB. Utah
C. New MexicoD. The District of Columbia
73. The underlined words “stick it out” probably means“＿＿”．
A. complete schoolingB. solve the problem
C. love having classesD. believe in themselves
74. In the last paragraph, the writer is trying to＿＿
A. analyze the reason why students quit school
B. suggest raising the compulsory attendance age
C. raise awareness of reforming high school education
D. wish to make laws to guarantee no education
75. From the passage，we can infer the following EXCEPT that＿．
A. the grades of most dropouts at school were acceptable
B. about 500, 000 high school dropouts are black and Spanish
C. classes don't appeal to dropouts
D. on average dropouts cannot get good jobs
To many web-building spiders, most of whom are nearly blind, the web is their essential window on the world: their means of communicating, capturing prey（獵物）, meeting mates and protecting themselves. A web-building spider without its web is like a men cast away on an island of solid rock，totally out of touch and destined to starve to death.
So important is the web to an orb-web spider's survival that the animal will continue to construct new webs daily even if it is being starved. For 16 days the starving spider builds completely normal webs. Then, as the animal gets scrawnier（憔悴的）， it constructs a wider-meshed web using fewer strands（線）. Such webs would only trap larger prey, which is more economical from the perspective of a starving spider.
The spider stores energy by recycling web protein. It simply eats its own web each evening and reuses it to produce new silk. In studies with radioactively，labeled materials, it was found that 95 percent of web protein reappears in the next day' web. Most of the energy needed for web-building is used in walking over the strands as they are laid down．
Scientists are impressed by the adaptability of the spider's highly preprogrammed brain, which is larger for its size than the brain of any other invertebrate（無脊推動(dòng)物）．If web-building is interrupted, or if some of the existing strands are destroyed，the spider simply goes back to see where the web is left off and then finishes building a normal web. One spider will finish building the incomplete web of another.
67. Which of the following best expresses the main ides of the passage?
A. Secrets of Spiders' AdaptabilityB. Importance of Webs to Spiders
C. Secrets of the Spiders' Life D. Spiders' Highly Pregrogrammed Brain
68．According to the passage, which of the following statements is TRUE?
A. Mast spiders will stop conducting webs when hungry
B. One Web-building spider usually conducts one web
C. Web-building spiders will probably die without their webs．
D. Web-building spiders have good eyesight.
69. A spider conducts a wider-meshed web when＿
A. it is 16 days oldB. it is getting weaker
C. it has fewer wendsD. it hunts for food
70. A spider's ability to finish an incomplete web proves that＿
A. it has a highly preprogrammed brain
B. it reuses its web protein to reproduce new silk
C. the web is everything for a spider
D. it is able to rebuild a destroyed web
（E）
High school dropouts（輟學(xué)者）earn an average of $ 9,000 less per year than graduates. Now a new study dispels a common belief why they quit. It’s much more basic than flunking out（不及格）.
Society tends to think of high school dropouts as kids who just can’t cut it. They are lazy，and perhaps not two bright．So researchers were surprised when they asked more than 450 kids who quit school about why they left.
“The vast majority actually had passing grades and they were confident that they could have graduated from high school.” John Bridgeland, the executive researcher said. About 1 million teens leave school each year. Only about half of African-American and Hispanic（美籍西班牙的）student will receive a diploma（證書），and actually all dropouts come to regret their decision. So， if failing grades don’t explain why these kids quit, what does? Again，John Bridgeland："The most dependable finding was that they were bored.” “They found classes uninteresting; they weren’t inspired or motivated. They didn’t see any direct connection between what they were learning in the classroom to their own lives, or to their career aspirations.”
The study found that most teens who do drop out wait until they turn sixteen, which happens to be the age at which most states allow students to quit. In the US，only one state，New Mexico，has a law requiring teenagers to stay in high school until they graduate. Only four states: California, Tennessee, Texas and Utah, plus the District of Columbia, require school attendance until age 18, no exceptions, another researcher，says raising the compulsory（義務(wù)的）attendance age may be one way to keep more kids in school．
“As these dropouts look back，they realize they’ve made a mistake. And anything that sort of gives these people an extra push to stick it out and it through to the end, is probably helpful measure.”
New Hampshire may be the next state to raise its school attendance age to 18. But critics say that forcing the students unwilling to continue their studies to stay in school misses the point－the need for reform. It's been called for to reinvent high school education to make it more challenging and relevant, and to ensure that kids who do stick it out receive a diploma that actually means something.
71. Most high school students drop out d' school because＿＿．
A. they have failing gradesB. they take m interest in classes
C. they are discriminated againstD. they are lazy and not intelligent
72. Acceding to the passage，which state has a law requiring school attendance until they graduate?
A. New HampshireB. Utah
C. New MexicoD. The District of Columbia
73. The underlined words “stick it out” probably means“＿＿”．
A. complete schoolingB. solve the problem
C. love having classesD. believe in themselves
74. In the last paragraph, the writer is trying to＿＿
A. analyze the reason why students quit school
B. suggest raising the compulsory attendance age
C. raise awareness of reforming high school education
D. wish to make laws to guarantee no education
75. From the passage，we can infer the following EXCEPT that＿．
A. the grades of most dropouts at school were acceptable
B. about 500, 000 high school dropouts are black and Spanish
C. classes don't appeal to dropouts
D. on average dropouts cannot get good jobs