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C
Edward Wilson is America’s, if not the world’s, leading naturalist. In The Future of Life, he takes us on a tour of the world’s natural resources. How are they used? What has been lost? What remains and is it able to continue with the present speed of use? Wilson also points out the need to understand fully the biodiversity (生物多样性) of our earth.
Wilson begins with an open letter to the pioneer in environment protection Henry David Thoreau. He compares today’s Walden Pond with that of Thoreau’s day. Wilson will use such comparisons for the rest of the book. The problem is clean: man has done great damage to his home over the years. Can the earth, with human help, be made to return to biodiversity levels that will be able to support us in the future?
Biodiversity, Wilson argues, is the key to settling many problems the earth faces today. Even our agricultural crops can gain advantages from it. A mere hundred species are the basis of our food supply, of which but twenty carry the load. Wilson suggests changing this situation by looking into ten thousand species that could be made use of, which will be a way to reduce the clearing of the natural homes of plants and animals to enlarge farming areas.
At the end of the book, Wilson discusses the importance of human values in considering the environment. If you are to continue to live on the earth, you may well read and act on the ideas.
8. How many species are most important to our present food supply?
A. Twenty.  B. Eighty        C. One hundred.  D. Ten thousand.
9. Wilson suggests that one way to keep biodiversity is to             .
A. learn how to farm scientifically
B. build homes for some dying species
C. make it clear what to eat
D. use more species for food
10. We can infer that the text is             .
A. a description of natural resources    B. a research report
C. a book review       D. an introduction to a scientist
第二节 （共5小题，每小题2分，满分10分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Is Online School for You?
Have you ever wished you didn’t have to wake up early and go all the way to school? For 700,000 American kids, this wish comes true. _____11___ This kind of learning has different names: online learning or distance learning. Regardless of what it is called, this idea may create an impression of a lonely kid reading pages of information on a computer screen rather than from a book or an image of another kid spending the day playing video games instead of learning mathematics or reading a book. Where online education is concerned, both of these are false! Actually, online learning simply means learning differently.
_____12_____ Flexibility is the main advantage. Students can attend school wherever and whenever they desire. Homework can be turned in from anywhere the student has Internet access. Additionally, many online schools will allow students to work at their own pace. 
Another advantage of online schooling is with the variety of courses. Most online schools teach the same basic classes like English, math, science, and history. _____13_______ However, traditional schools are often unable to offer these types of classes if there are not enough students. 
Online schools also have different types of learning tools for kids to use. For example, many online schools have special Web sites where only students registered in online classes can watch videos, see lessons presented, or chat with teachers and other students. Some online schools have live class times where students can call and talk with the teacher directly. ______14_____
Computer technology is amazing, and we use computers for chatting with our friends, listening to music, and playing games. _____15____ Since 2006, at least 38 states either have their own online schools or made rules for students attending them. It looks like online schools are here to stay, but only you can decide if this type of learning is right for you.
A. Online schools offer many benefits for the learners.
B. Of course, there are some drawbacks of going to school online.
C. Almost every part of our lives is affected by it, and school is no exception.
D. They attend school over the Internet using ordinary home or library computers.
E. Other online schools even have online clubs where kids can talk about their hobbies.
F. Some online schools also offer specialized classes in subjects such as space science, French, or zoology.
G. For some students, online school may be ideal, but for others, traditional school may better meet their needs.
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