问题 读图填空题

(3分)葵花离不开太阳,说明生物依赖环境:沙漠中的骆驼刺根扎得很深,说明生物___________环境:蚯蚓生活的地方土壤比较疏松,说明生物还能___________环境。总之,生物与环境是一个___________的整体。

答案

适应 影响 统一

题目分析:生物和环境之间存在着两种关系,环境影响生物,但是生物既能适应环境也能改变环境;生物都生活在非常复杂的环境中,时刻受到环境中各种生态因素的影响,生物只有适应环境才能生存,换句话说,自然界中的每种生物对环境都有一定的适应性,否则早就被环境淘汰了;不同的生物对环境的适应方式是不同的,绿色植物一般都有较大的叶片,用来进行光合作用,并且能通过蒸腾作用促进根系吸水和植物体散热,生活在沙漠地区的仙人掌就不同了,它们的叶变成刺,这样可以减少水分的散失,沙漠中的骆驼刺根扎得很深,是生物对沙漠缺水的适应,因此生物适应环境具有普遍性;同时生物本就属于环境,既受到环境的制约,又会很大程度上影响环境的变化,如蚯蚓生活的地方土壤比较疏松,因此生物与环境是一个统一的整体。

点评:此题是基础题,对于生物与环境的相互影响的关系,要从两方面去理解,不要过偏的理解某一方面,环境影响生物,但是生物适应环境也会影响环境,因此生物与环境是相互影响的。

阅读理解
阅读理解。
     Harry's father bought a magazine which gave its readers information about all kinds of products and
helped them make the best choice while buying.
     Harry borrowed his father's magazine when he needed a new computer. "I'll read it and choose the
best one." He said.
      The magazine described these computers.
The DGT PC450
The BNK 975XF: AT $3, 200
The CGP 8PT

    This computer comes with
lots of good software. However it
does not have much memory and
is rather slow. At $2,850 it's not
very good value for money.

     This is the most expensive
computer we tested. However
it is also far the most reliable
(可靠的). It is very fast and has
lots of memory. It is worth the
extra money if you can afford it.

     At only $1, 900. It has lots
of money and is quite fast.
However it broke down twice
while we were testing it and
we cannot recommend (建议)
it for reliability.
     Harry chose the BNK 975XF. "I know it's expensive," he said, "but it will be with me for a long time
and do everything I want it to do."
1. Harry wants to buy a computer, so he borrowed ________ from his father.
A. a computer magazine
B. a magazine about all kinds of products
C. a shopping book
D. a book about all kinds of computers
2. ________ doesn't have much memory and is rather slow.
A. The DGT PC450
B. The BNK 975XF
C. The CGP 8PT
D. Harry's computer
3. The CGP 8PT is ________ among the three kinds of computers.
A. the fastest
B. the most expensive
C. the cheapest
D. the slowest
4. Harry chose the BNK 975XF because ________.
A. it is the most expensive
B. it has lots of good software
C. it has much memory
D. it would work for him for a long time
5. ________ helped Harry to choose the computer.
A. His father
B. His friend
C. The shopkeeper
D. The magazine
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