问题 读图填空题

下图示生物圈中部分物质的循环,A、B、C、D构成生物群落。请据图分析回答:

(1)若此图为碳循环的部分示意,则A是__________,D是__________;完成①过程的能量来源是__________;碳在无机环境与生物群落之间的循环是以____________形式进行的,碳在生物群落内的流动是以_________形式进行的。

(2)指出上图作为碳循环图解的不完整之处__________________。

(3)若C同化的总能量为a,其中由A经④过程供能比例为x,则按最低传递效率计算,需要A的总能量y与x的函数关系式为_______________。

(4)若C增加能量10千焦,则A至少需要含有能量______千焦。

答案

(1)生产者     分解者      太阳能      CO2      有机物

(2) A、B、C应都有箭号指向大气中的气体X

(3)y=100a-90ax

(4)50

阅读理解

阅读理解。

     Danielle Steel, America's sweetheart, is one of the hardest working woman in the book business. Unlike

other productive authors who write one book at a time, she can work on up to five. Her research before

writing takes at least three years. Once she has fully studied her subjects, ready to dive into the book, she

can spend twenty hours nonstop at her desk.

     Danielle Steel comes from New York and was sent to France for her education. After graduation, she

worked in the public relations and advertising industries. Later she started a job as a writer which she was

best fit for. Her achievements are unbelievable; 390 million copies of books in print, nearly fifty New York

Times best-selling novels, and a series of "Max and Martha" picture books for children to help them deal

with the real-life problem of death, new babies and new schools. Her 1998 book about the death of her work

shot to the top of the New York Times best-selling list as soon as it came out. Twenty-eight of her books

had been made into films. She is listed in the Guinness Book of World Records for one of her books being

the Times best-seller for 381 weeks straight.

     Not content with a big house, a loving family, and a view of the Golden Gate Bridge. Danielle Steel

considers her readers to be the most important resource (资源) and has kept in touch with them by e-mail.

While she is often compared to the heroines (女主人公) of her own invention, her life is undoubtedly much

quieter. But, if she does have anything in common with them, it is her strength of will and her inimitable (独

特的) style. There is only one Danielle Steel.

1. Danielle Steel is different from other writers in that _____.

A. she can write several books at the same time

B. she often does some research before writing a book

C. she is one of the most popular American women writers

D. she can keep writing for quite a long time without a break

2. Children who have read "Max and Martha" picture books may know _____.

A. how to deal with affairs at school

B. what to do if Max and Martha die

C. what to do when new babies are born into their families

D. how to solve the difficult problems in their writing classes

3. One of Danielle Steel's achievements is that _____.

A. some TV plays were based on her books

B. her picture books attracted a lot of young men

C. one of her books became a best-seller in 1998

D. she wrote the Guinness Book of World Records

4. We can learn from the passage that Danielle Steel _____.

A. lives an exciting life

B. values her readers a lot

C. writes about quiet women

D. is pleased with her achievements

问答题 简答题