The aim of a letter of application(求职信) is to help you to "sell" yourself. It should state (21) the job you want, and should tell what your abilities are and what you have (22) . It should be simple, human, personal and brief without (23) out any necessary facts. In writing a letter of application, keep in (24) that the things a possible employer is most (25) to want to know about are your qualifications(条件), your achievements(成绩) and your aims. The opening paragraph is perhaps the most important part. (26) the first few sentences fail to (27) the reader’s attention, the rest of the letter may not be (28) at all. Try to key your opening remarks to the needs or interests of the employer not (29) your own need or desires. For example, instead of beginning with "I saw your (30) in today’s newspaper," you might say "I have made a careful (31) of your advertising during th
A. Make
B. Ask
C. State
D. Get
Nowadays most people decide quite early what kind of work they would do. When I was at school, we had to choose (76) when we were fifteen. I chose scientific subjects. " (77) , scientists will earn a lot of money," my parents said. For three years I tried to learn physics and chemistry, but in the (78) I decided that I would never be a scientist. It was a long time (79) I told my parents that I wash’ t happy at school. "I didn’ t think you were," said my mother. "I didn’ t either," said my father. "Well, the best thing to do now is to look for a job. "
I talked about it with my friends Frank and Lesley. (80) of them could suggest anything, but they promised that they would ask their friends. A few days later (81) I was still in bed, someone telephoned. "Is that Miss Jenkins" A voice asked. "I understand your hobby is photography and I’ ve got
A. being
B. as
C. to be
D. but
对偶故事法
观察法
测验法
实验法
根据《国际湿地公约》，湿地是指自然的或人工的，长久的或暂时的沼泽地、湿源、泥炭地或水域地，拥有静止或流动的水体，包括低潮时水深不超过6米的滨海水域。这就将人们惯常理解的，仅指水域与陆地之间过渡地带的湿地概念，扩大至在空间上与之紧密相连的河流、湖泊等水体，使其形成整体，这有利于湿地生态的综合保护。滨海湿地和由河流湿地、湖泊湿地构成的内陆湿地，属于自然湿地；为满足人类需要而建成的水库、渠道、水田、塘堰等，属于人工湿地。我国湿地资源丰富，占世界湿地资源的十分之一。
湿地，与森林、海洋并称地球三大生态系统，具有不可替代的重要功能，与人类生存发展休戚相关。湿地是许多野生动植物(包括许多濒危物种)的“家园”，是全球生态系统中的巨大基因库。湿地也是蓄水防洪的天然“海绵”，能保持大于其土壤自身质量3至9倍甚至更高的蓄水量，能在短时间内蓄积洪水，然后慢慢将水排出。湿地还是有毒物质的降解容器。当人类活动造成的各种有毒物质进入湿地时，许多湿地植物和湿地中的微生物群落，能对其进行降解和转化，净化环境。这是湿地享有“地球之肾”美誉的重要原因。
湿地资源共享，是人类的“衣食父母”。湿地提供的动物产品，如鱼虾等，是人类重要的蛋白质来源。产自湿地的谷物养活了全球50%的人口。取自湿地的芦苇是重要的造纸原料。湿地的水资源不仅为人类提供用水保障，也提供了“舟楫便利”。湿地资源还可以通过多种方式转换能量，如水力或泥炭发电。另外，湿地景观独特，是人们理想的旅游、休闲场所。
但长期以来，人类对湿地生态系统的整体性和多功能性认识不足，为了眼前或局部利益而透支湿地资源。例如，将大量湿地排水后改作他用，导致湿地面积锐减；过度捕捞、采挖湿地动植物，破坏了湿地生态平衡；上游湿地的林木砍伐造成水土保持功能退化，使中下游泥沙淤积，湿地蓄洪功能下降；工农业和生活污水随意排放，严重污染湿地水体。现在人们已经意识到保护湿地的紧迫性，并积极探索科学的方法。有专家提出，解决问题的根本办法是在湿地全流域进行大规模湿地生态重建，全面恢复湿地生态系统功能。这个建议已得到认可。
由于湿地类型多样，其功能和价值不尽相同，因此湿地生态的恢复和重建要有
A. 无论是自然湿地还是人工湿地，都与人类的生存与发展密切相关。
B. 湿地指长期被静止或流动的水体覆盖的地域，如沼泽地、湿源、泥炭地或水域地。
C. 湿地通常被认为只是指水域与陆地之间的过渡地带，这其实是对湿地的一种狭路义理解。
D. 湿地中的水体与湿地的其他组成部分难以分割，共同构成了湿地整体的生态系统。
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