首先,林冠层就像一把大伞,能够对垂直降雨进行再分配。一部分降水被林冠截留,直接蒸发到大气中;一部分顺着枝叶、树干流到林地,形成树干径流。据统计,我国主要森林生态系统的林冠截留率平均值为11%~34%。
班长立刻组织抢修舵链,这才发现,几乎不可能。修舵链要从船头的铁柱处下去,可甲板到船头的舱盖上结了厚冰,舱盖是拱形的,十多米长。平时,船一晃,在上面走都很难。现在结了冰,站都站不住,根本别想走过去。班长看着结冰的舱盖请示陪同的马参谋长:“参谋长,过不过?”“怎么过?”“爬!”“多大把握?”“没有。”马参谋长认真看了看班长,重重拍了他一下。
蔡元定①八岁能诗,及长,登泰山绝顶。日惟啖②荠③。于书无不读,朱熹扣④其学,大惊曰:“此吾老友也,不当在弟子列。”
行路难李白金樽清酒斗十千,玉盘珍羞直万钱。停杯投箸不能食,拔剑四顾心茫然。被渡黄河冰塞川,将登太行雪满山。闲来垂钓碧溪上,忽复乘舟梦日边,行路难!行路难!多歧路,今安在?长风破浪会有时,直挂云帆济沧海。
In the late autumn, John was badly ill andbecame bedridden (长期卧床的).After the doctor visited John several times, he told Sue, “His condition isquite ___22___.John seems to have lost all will to live. If he doesn’t want to live, medicineswill not help him.”
YangHongwei, 56, was born into a kite-making family in Weifang. When she was young,she often saw kites with bright colors and different shapes in hergrandfather’s workshop.
In the large yard stood thirteen trees ofdifferent sizes. One day, while Joey was playing with his sister under thetrees, he noticed that a tree trunk (树干) had a sad look. He raninto the house to tell his mom about it. She told Joey to find the reason whyit was sad.
As a boy, Kevin visited national parks and helearned the Earth is in ___12___ condition. He felt worried, and hewanted to ___13___ the Earth. In 2009, he went to swim in water nearNorth Pole(北极)todraw people’s attention to the melting glaciers(融化的冰川).
Long ago, a poor old couple lived on the coast.One day, an old storyteller came to their village. The old couple gave him ameal. In return, he gave them a coffee mill (磨粉机)and said, “Say, ‘Mill, please grind (磨粉)’,”
In the large yard stood thirteen trees ofdifferent sizes. One day, while Joey was playing with his sister under thetrees, he noticed that a tree trunk (树干) had a sad look. He raninto the house to tell his mom about it. She told Joey to find the reason whyit was sad.
As a boy, Kevin visited national parks and helearned the Earth is in ___12___condition. He felt worried, and he wanted to ___13___ the Earth. In 2009, he went to swim in waternear North Pole(北极)todraw people’s attention to the melting glaciers(融化的冰川).
The app — called Sit With Us — is ___15___. If a student is having lunch in the afternoon,he or she can create an invitation. Other students can open the app and ___16___ that invitation. They can then use the app todecide when and where to ___17___.
Thinking that her dream could never come true,Kelly was in low spirits and ____18____ her studies at school. Hermother did all she could to cheer her up, ____19____ Kelly refused tochange. She even took out all her anger and ____20____ on her mother.
At the age of nine, Kelly dreamed of being abasketball player. But one day when she was playing basketball, she hurt herleft leg ____16____.
Antarctica lies in the most southern part of theworld. It is the coldest area on Earth. There isn’t much rain, but there is alot of snow and wind. The lowest temperature was on 21 July in 1983 at -89.2℃!
During 1907-1909, British explorer EarnestShackleton explored Antarctica on foot. In 1911, two explorers—a British mannamed Scott and a Norwegian named Amundsen—raced 1, 400 kilometres to the SouthPole (南极).Amundsen arrived first.
I joineda band (乐队)as a drummer in my middle school. I thought itwould be fun playing the drum and meeting new friends. At first it was easy,but a month later, it got difficult. I was the only one who couldn’t keep pace (节奏)with the other players. Our teacher,Angie, singled me out to keep practicing while everyone else got to relax. Ifelt ashamed (羞愧的)as my teammates watched me fail so many times.Finally I got so tired of practicing that I didn’t care about doing it right.
When itcomes to a meaningful life, we might think of love, happiness and health. Alife filled with meaning is what most of us want for ourselves. Then, whatmakes a meaningful life?Manyresearchers agree that a meaningful life comes down to three factors (因素): havinglong-term goals, believing that one’s life matters, and feeling that one’s lifefits together and “makes sense”.But we believe there is more to consider. Sometimeslife enables us to experience small moments of beauty. When people are open toappreciating (欣赏) suchexperiences, these moments may improve how they see their own life. We callthis experiential appreciation (EA).
2.2.1服装加工企业车间作业现场人员密集,电气线路复杂,易燃物品多,一旦出现火源,易蔓延引起火灾造成群死群伤。2.2.2一般火灾事故易发生在车间和员工宿舍区内,电气线路及装置安装不规范的、无人监视的作业现场。作业现场用电装置(包括:线路、控制装置、用电设备和手持电动工具等)。2.3危险因素分析
(一)危险化学品及其它有毒有害物质在经营、贮存、运输、使用和处置过程中发生的爆炸、燃烧、大面积泄漏等事件;(二)工业企业生产过程中因意外事故造成的废水、废气、固废、电磁辐射等环境污染破坏事件;(三)影响饮用水源地水质安全的突发性环境污染事件;(四)因不可抗力(含自然原因和社会原因)而造成危及环境安全及人体健康的环境污染事件;
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