真二第張四第日八十月三年酉己歷夏
WAH KIU YAT PO
報日僑華
日期星二日四月五年九六九一醫公年八十五國民華中 育教僑華
文中學會考試題預習
經濟及公共事務科(二十六 )
到奇敏
(廿六)
複習
̇莫愛桐
一外呼吸與內呼吸,
1.外呼吸
·是呼吸器官內之, 血液(即包圍著肺泡之 微血管內之血液)興外 界空氣交換之階段與
熱能產生無関
首先空氣從外進至 鼻腔,經咽頭,喉頭氣 管支氣管,小支氣管而 達肺氣囊,此時吸進肺 氣囊之氧氣便擴散至 附於肺泡的微血管裏 與紅血球內的血紅素 結合為氫化血紅素微 血管的血液帶來的二 氧化碳亦同時擴散至 肺氧囊而呼出体外此 過程稍外呼吸
2.内呼吸。
·是血液中之氧進空
組織細胞組織細胞
1
內之二氧化碳不進至 血液階段其間経過乳光体質階段琪熱能產生有
·血液從肺泡處得到氧氣後便運至組織細胞(經肺静 脉、左心房左心室主大動脉,上腔動脉下腔動脉,微血管 西達上下腔之組織)氧從微血管擴散至組織細胞內, 氧化其質素(醣蛋白或脂肪等)而產生熱能和廢物廢 物中有二氧化碳,二氧化碳由組織擴散至微血管內之 血液,此過程稱的呼吸
二.外呼吸與的呼吸邊程中之相異點
内呼吸
外呼吸
血液吸進
氧化碳
血液放出氧乳而吸進 二氧化碳
無氧化体素產生熱能之 過程
有氧化停素產生熱能 過程
練習
1.人類左肺有.
2.兔類左肺有
葉在肺有.
3.肺主要是由
組成
·4. 肺泡壁很薄,是由一層
細胞情組成
5. 肺泡壁上分佈有許多微血管,其與肺氣憂之氢体交糕
邊程稱
6 各組織細胞與其附近微血管之氣体交换湿程精.
7.呼吸動作之構成主要是由a_
Þ
三肌肉之運動所促成
5.血液中可攜帶氧氣者為
之肋間肌如
可機型二氧化者炒
9.肺氣囊中之氧能向微血管提散是由於肺氧愛甲筑之獎
度比微血管者為
1.鼻腔之壁可分泌粘液且着生很多此可淡漫空
,鼻腔還可調節空氯之 和
此與保護肺部有關
4.氣管和支氣管之的皮膜着生有很多。
關係,可將。
逐出氣管之外
2當吞嚥食物時
、軟骨、下垂蓋看.
防止食物
誤進氣管
二石圈装置可表示出横隔膜控制呼吸的樣式.
藻、填光圖上標線所指各部名稱.
e萬出標線所指鄰分时代
表人体之那一部分器官
代表人体之
代表人体之
白
5
代表人体之
B.寫出下列部分之功用
前期練習解答
A. 1.在頸動脉,2王大動脉
4.上腔静脉,
3.肺動脉
3、右心房,“半月瓣三尖瓣 8.下腔静脉,9心隔壁10心臟 壁左頸動脉12在鎖骨 不動脉:13. 左肺動脉14.左 肺静脉15.左心房、二尖瓣 17左心室.18腱索,乳頭肌 20. 背大動脉.21主大動脉. 22上腔静脉,23右心房位置 24下腔静脉,25冠狀動脉 4.右心室位置:左肺動脉 28 左心房位置,29.左肺静脉 位置:30冠狀静脉 31. 左心. 宝位置,红背大動詠
C.4上腔静脉:流至右心房 5.右心房流至右心室 3. 左肺動脉:流至左肼: 5.左心房,流至左心室
9
8.下腔静脉:流至在心房 3.肺動脉:流至左右肺動脉 4.左肺静脉:流至左心房 7、左心室:流至主大數脉
2.主大動脉:流至頸動脉、鎖骨下動脉及背大動脉. 6.左頸動脈、流至左方頸部及頭部
3. 左鎖骨下動脉:流至左上肢 20脊大勤脉:流至下腔
D7三尖瓣,可阻止心室血液倒流入心房
18腱索,19.乳頭肌腱索一端繫心瓣,另一端接以心臟 壁突出之乳頭肌;乳頭肌之活動牽引腱索二者共同 控制心瓣,不致衝伸入心房
6.半月瓣:可免動脉之血倒流進心室
25.冠狀動脉、带血營養心臟本身
二、淋巴結
2.產生淋巴球 口消除細菌毒纛
貯边
6.支解衰老紅血球
心產生淋巴球(在胚胎期還可產生紅血球和颗粒白血球)
3. 淋巴液
4.博送養料,氣氛至組經
6. 收集組中之廢物。
C. 消除侵入之細胞及病毒
三.骨髓.2髓,淋巴結,脾 3.五百隐
紅血球 5.紅血球 6.白血球,7.哺乳 小板,血漿9.120,肝,脾10血小板
分佈養料
'uconomic
Lecture No. 26
By K.M. Lau,.
Anawers to the questions in Exercise No. 24
Question 1: What are the results of international
trade?
Answer
When countries start to trade with one another, they are capable of enjoying a wide range of products, which are otherwise denied to them if they themselves are unable to produce. For instance, Ceylon produces tea, Brazil coffee, Malaya tin, Hong Kong textiles, and Australia mutton. Because of international trade each country is able to have the exports of the other countries. Thus Hong Kong can sell her textiles to foreign countries and get in return, tea, coffee, tin.
We mutton.
We know that Hong Kong. can produce textiles as as grow rice. Since Hong Kong has a greater comparative advantage. in manufacturing than in farming, it is wise for her to specialize in manufacturing and give up farmingy but this. ie impossible if international trade does not exist, since to do so, Hong Kong would not have any rice. But as it is, countries like Thailand and China are chief rice suppliers, Hong Kong can therefore rely on them for the supply of rice,
The ability of one country to rely on other countries for what the country does not herself produce has given rise to widespread adoption of regional specialisation which in turn resulta in
(a) an increase in the world total output of
commodities;
(b) a greater quantity and wider range or goods
for each country.
indoner result prought about by countries when they start to trade with one another is that countries have learnt to live with each other as peaceful neighbours, since each country hae to depend on the rest of the world for many products.
International trade also helps to raise the standard of living, sinoe most people can now enjoy the goods from countries far and near. It also enable labour to be used more. productively and
economically.
On the unfavourable Bide, international trade may encourage one country which is more economically advanced to take advantage of another country which is undeveloped. This exploitation is the result of. the former country's imposition of terms of trade which are unfavourable to the other country.
International trade encourages each country to specialize in one industry or primary production only. This is bad because every country should be economically active in many, industries, and this can enable a greater diversity of jobs to exist in the country for the people to choose, Specializing in one industry is very risky like a person putting all: the egge in one basket.
When countries start to trade with one another; every country gradually becomes a keen gompetitor. Countries that are economically and socially weak lose therr markets to the more advanced countries. That countries cannot, in actual fact, complete on a fair basis is one drawback of international trade.
Question (2) Give a description of де Work or
G.1.S.
G.1.3. 18
an abbreviation or a uovernment
department, known as Government Information Services.
Supervised by the Director of Government
Information Services, this department is chiefly responsible for telling the local inhabitants and
people. abroad about Government's policies, public projects and accomplishments.
G.I.S. is made up of three principal divisions
血漿 P.血球
V1 21
運輸氧氣 運輸廢物
原生質從食物胞吸氧直接由水中擴A廢物及CO等电 草履蟲入的養分藉擴散散經皮膜面入細,擴散作用直接經皮
無專一 分佈細胞各部 胞的
膜把魔物排出,或利 [用伸縮胞收菜面 1排出。
(環線
【腔腸內消化了的食物|氧直接由水中擴/氫廢物及CO2等於. 由內胚層細胞吸收經細胞膜而入/ 內外胚層細胞). 繼而擴散至外胚層內外胚層細胞內擴散作用直接擴
散至水中 【水 細胞,又的胚層營養網. 無專一胞突出鞭毛之擺動使 【循環農藥流動,因而增加. 【與內胚層細胞接觸 之机警故有分佈養
分之效
由循環系之血液輸送,皮膚獲取之氧氣由氮廢物及CO油血
体腔亦有分佈養料血液輸送
尤禁运此番瞼之方法與結果、
[蚯蚓]之效
(有專一
1 循環系
液輸送.CO送至皮 膚排出.氮廢物亦
[送至腎管而排我,
【体腔液亦可把魚 廢物送至腎管理 排发
Administration wivision:
News Division and
(3) Publicity Division
Baca aivision 18 further made up of sectIONS, # that each saction can carry out certain specific work of the division move efficiently and effectively. An important day-to-day work of G.I.S. is to provide press releases to local newspapers and news agencies. These releases contain news of local interest, information provided by the various Government departments. In writing up avents
happening in Hong Kong, local journalists have to
check up with these releases to eliminate any
inaccuracies in their reports. Any queries concerning
individual departments are now mostly referred to the News Division of G.I.S. in order to avoid anv possible, contradictions,
In the past information in respect of traffic accidents or crimes was obtainable from the Police Force through the police press officer. Today, the Press Section of the. News Division is responsible for this work. Newspaper reporters no longer contact the police direct, unless under exceptional conditione such as when a senior police officer is holding a press conference.
News f radio or television proadcasts is also prepared and subsequently releases by the staff of the Radio Section of the Presa Division.
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