(3)水分之氧化必須吸收氧化热,所以 能吸去從陽光所得或呼吸所釋出 的热,以调器葉面温度,不致因温 度過高而俊導受傷害。
(4)促進根部的吸收作用, 滴透作用
日期星日五月三年二十九一曆公年一十六國民華中 育教僑華
1872英文中學會考試題預習專欄
經濟及公共事務科(十八)
Ecenszic And Public Affairs (18)
Questienr(1) Dewodba briefly. the develope
ment or aur monetary system. and point aut the pres and cans of our present form of
meney.
Fin primitive times the inhabitants of the earth led simple independent lives. Their scenenic system was one that was completely different from that of sure te day... He call their ayatem aubsistence eceriamy. They hunted, fished and later grew: oreps and made things all by them- salves. There were ne decters, dentiste,. lavyers, bus-conducers or such specialists as we have new..
- The people were all very simple= minded. Their needs were few and could be easily satisfied. They needad no inven- tiona and they depended en no one, Every- bedy had te werk en his own and get what he wanted. Money to then of coures, would be useless, and as they needed no money.
頁二第張五第二日十二月正年子壬醫夏 WAH KIU YAT PO
報日僑華
石橋藥
e蒸散作用的生理價值如下:
幼排過量的水分,以维持植物体内细 胞渗透压与膨压的穩定;因為植物 所吸收之专机盐必须溶解於水中
中文中學會考試題預習專欄 生物科(十八) 一梁景桓一
(3)葉面之蒸散作用,使肉细胞对水液 產生牽引力,因而促進水分的上升輸導
一温習内容,奐類之形態生活習性, 蛙之形態生活習性及其 生活史
Answort
二預習題
1.下图為奐的外部形態,回答下列问题
2蒸散作用
部名称
.ñ在日间相对湿度較a在晚间相对湿度較
低的情况下進行
大的情況下進行
部有何功
BE h, e, d,
(C)营有何功能,
(比試舉出六奌对生活環境的
適度性
2下图嵩蛙之内臟解剖,当期间服 壁後,未移動其
以蒸氣状態進行 4排云水點 -蒸散的水為纯水排云之水含有雜質 水水蒸氣由氣孔或 小水白葉緣或葉尖
直接透過表皮之: 角質而散
愛保衛細胞的 調節
e不受保衡细胞调 茅(水孔两旁三保衛 (细胞要調節作用).
臟器之前的因 (A)字云图中各
部位置的名称 B等击下列各 部的功能
促進根部吸
温度之作用
asp bap esp
C.你能就外形上辨别嗮蛙与雄蛙嗎?
3.下圖為蝌蚪之形强图,回答下列
问题
A写云图中各部名称
B. 試述蛙一生過程中呼吸器官及運動器官
的演變情形
4. 蛙和海龜都能在水中及陸上樓恳活動為
何蛙属兩棲類而海龜則屬爬呢
試中述真理。
3.試绘图説明蛙之養土過程(胚後唷)
上期答案
1. a於液面加石蠟油目的在於阻止液
面蒸专作用。
所損失之16c.c.的水分為枝條吸收但 並不一定全部蒸散,故仍有部分水留存。 :於体内量筒所損失之水只能表示吸, 水量不能代表真正的蒸散量,而裝置 ̇祈減少7克永才是真正的蒸散量。 C影響蒸散作用的外界固有下列五项。 山日照强度(2)空氣之相對湿度: (3)氣溫之高低,(如風速的大小 动土壤供水的情况,
d. 植物蒸散作在下列位置進行
3級氣孔蒸散;包括禁面遠孔与 及幼莖的氣孔,此為蒸散主要之路线 (2)經表面角質層蒸散
(3)經皮孔及樹皮蒸散之量微。
3.当外界大氣相对湿度太大,葉肉氣+! 之水蒸氣便無法經氣孔擴散逸云,因此
必须以水液狀熊白水孔排云。
以一鐘形罩蓋著一盆栽 事前供以足够水分移於 陽光下以增加其蒸散及 水分之蒸制佼罩內空氣湿
“度增加,隨後持裝置移入室内,溫度 稍降,相对湿度即行增加,阻碍蒸 散作用之,植物便進行滴透排水 於薰失或葉綠云現水炎
4.植物对代谢養物之審理如下
1A.在有光時,呼吸作用所產生之二氧化碳 及水,均可被再利用,作為行光合作 用之原料。
B藉一部分音機盐,中和代謝所產之 有機酸:成為不溶性结品如草 酸鈣等財於液胞中等待量或 断枝時隨脱落部脫離事件
C若在垂克時,代谢所產生之冰可藉 蒸散作用或滴透作用排主而二氧 化碳則經氣孔擴散排云,
5. a在陽光下,垂变化,
6.移於暗室下則見到石灰水变得。
白色混濁;另一方面、玻管中水拉上, 升,同在有光時,由呼吸作用所產生, 三二氧化碳為植物行光合作用之原料 故石灰水变化,但在暗室時光合 弱或停止,故呼吸作用所生成Coc 与石灰水接觸面生成白色沉澱之 碳酸鈣,同時同罩中氣压下降,故
此水面泥玻管上界。
6. 生物细胞着在缺乏游離氧素之供给 時便能藉酶的作传醣分解生成 酒精或乳酸或其他有機質而釋放 云能這項釋放能的作用絲為咁 氧呼吸(安驗裝置请参考譯本),
As the years passed by, people began to think that it would be batter for thes if they could exchange their goods, and services with one another. It would en abla each paraon to enjoy what the others. produced," This idea of exchanging goods for goods rapidly spready and people began to like the idea. With the introduction and application of division of labour, the idea was accepted by everyone in the civi- lized world. Thus from subsistenca econ-
ony. people had developed it into the bar- tor economy. But thay soon diacovered that this system prosented a number of difficu ities.
Firstly, it was always difficult to find the right person who was willing to. szchange his goods for something else; pra- vided this person needed the product that was offered to him, he would be reluctant to give away what he produced. Ma Sam Secondly, it was also always diffio- ult for two persons to agree to the rats. of exchange between their goods, for there was no standard measurement for the value of goods, as there wore standard measure- monte for weight and length, For instance how many fish would a fishmonger think rea- sonable to exchange for how many pounds of pork from a butcher?
Thirdly, how were wages to be paid? cet people had difficulty in employing Jorkers, unless the workers were will to :iccept the type of goods their employera
produced as payment of their servicos, Phis difficulty got worse when a worker wad employed by one who did not produce goody but provided a service such as that of a dentist. How would he be paid then?.
Finally, the problem of future ins0- curity .could not be solved. It would be. unthinkable if one had to store up e5CB, rica, piga, coats and vegetables in one's, hors for use
when he reached old agai
So the great thinkers and rulers got together to solva these problene which ex- fsted under the barter economy. Eventually everybody agreed that there should be a padium of exchange to be used by everyone,
The idea was an excellent one, and no doubt, would be able to solve some of the problems caused by the barter economy. At different times and in different places," many things had been used as the meātum of exchange such as sea-shells, goats and gold-duat. Later it was found that this madium of exchan could also act as a unit of account, a measure and store of value, thus solving all the problems cr eated by the barter system.
This medium of exchange is called money and we can, therefore, be said to be working and living under the money. economy. Today through the development of our economic studies and practices.
ve
monero diepenged with the old forme of:
money, and instead, we are now using ch- equen, legal tender, credit cards, postal and money orders and among them there are advantages and disadvantages.
" Cheques compared with legal tender are safer and more convenient to use ea. pecially when large Bums: of money an involved. It is quite safe, for instance, to, send a cheque (if it is crossed) by post to a friend. One does not have to l carry large bundles of dollar-notes and bage of coine when going to make purch ases of large commodities such as motor- cars. A cheque is all one needs to br ing along. Cheques save the time that汴 may be wanted in:counting and checkine: how much money there is when legal tender is used, and they also save effort that: is required in carrying legal tender around.
But it has been known, that unsozug- ulous people often write out cheques even when they do not have money in the bank. Though writing out false cheques in a oziminal offence, it is more difficult to prevent than to detec. it. Thus, it. is for one's own protection that ona does not receive a cheque from a stranger,
complete
For small Buma of money, it ha Higa
to use legal tender, for in that case one can save the stamp duty which is required
in all cheques, and also when using legal tender one is certain of its acceptance. by anyone, But legal tender is unafe and is inconvenient to carry around. It may be lost, stolen or robbed. It would also look ridiculous if one carries two s baskets of banknotes to go chopping! Most employers today open current or Bavings accounts for their staffe to eliminate the difficulties found in the use of legal tender.
Most people today do not carry on- #qyes or legal tender when they go to certain places. They carry credit carde, which may be considered as a means or deferred payment. If a person is credit- worthy (that is to say he is trustworthy and he is solvent) a commerical enter- briss (such as a restaurant, a hotel or a department store) is willing to issua him what is known as a credit card, so that whenever he makes use of the firm he needs only to sign for the bills pre- sented to him, At the end of the month, he is then called upon to pay for the amount he has spent. Thus, credit cards are regarded as money, and they are be coming increasingly popular. They can also solve the problem of tipping!
Queetion1(2) How important is the Governds
to Hong Kong?:
Answer:
The Governor is not just a figure head, as the Queen of England is. "Her chiefly responsible for the progress, de- velopment and improvement of Hong Kong. in the fields of education, housing, hea Ith, and economy, he is also responsible: for the maintenance of peace and good. order in Hong Kong, as well as the maint➡) enance of good diplomatic relations with:
the neighbours of Hong Kong. Kong on be--
half of Her Majesty . the Queen, for a per iod of five years, at the end of which ha may be reappointed again, depending on
his health and his popularity with the people of Hong Kong and those in the Con- monwealth" Office:
It is therefore apparent that if a person is appointed to rule Hong Kong and if he does not know, previous to his appointment, the conditions that exist in the country, he would turn out to he uselése ruler. He may even hampar the progress that has been going on in: the country since the adainistration of his predecessor.
The Governor formulates policies for the country. His policing are primarily aimed at improving, the lives of the city isene by raising educational standards, eliminating poverty and introducing sa- ployment opportunities and better madical facilities for everyone. As we do not expect him to posses accurate and spaci— alized knowledge of all matters affecting his administration, he is free to appoint eminent experts in various fields to serve as his advisers.. He has therefore a legal adviser (the Attorney-General), a financial adviser (the Financial Secretary), a mil-" itary adviser (the Commander, British Forces), an adviser on Chinese affairo: (the Secretary for Home Affaire), an adviser on government affairs (the Colon- ial Secretary) and 6 prominent pitizens from the various communities. His advic-, ere are grouped together to form hig "Cabinet", known as the Executive Council.
The policies of the Government are. essentially the policies of the Governor. 1 Should any policy prove to be bad, the Governor is logically the person to whom all criticisme are directed. He alone carries the blame. Thae anyone occupye ing the governor-ship of Hong Kong should) be a man of great intellect, wisdom and understanding; he has to possess organis-) ational and leadership abilities. It is he who leada the country from strength to: atrength, Hin importance is reflected y by the great deference and respect the citizens give him. A
The Governor makes lava for the country. It is not wrong to say that the laws of Hong Kong are the Governor's laws. Again he may need expert advice in his work as Hong Kong's lawmaker, He has therefore the Legielative Council ta guide and assist him. If the Governor. thinks that certain things need to be improved, he may pass a law. For inst-. ance if the problem of juvenile delinque ncy in the country Geteriorates, A necessary for him to pass a law to intro- duce harsher punishment as a deterrent. The enactment of the Emergency Regulations. in 1967 because of the disturbances that "occurred in the year is another example
of the neceseity of passing a Taw.
the other hand, it may be necessary to repeal a law when it does not serve the purpose for which it was originally passed, Again, we see that, in 1969, the Governor repealed the Emergency Regulations, when there were signs of the return of the con- munity to normal conditions.
The Governor's policies are carried out. by the: Civil Services that organizatm ion that is made up of the Government de- partments. His instructions are conveyed from his chief spokesman, the Colonial Secretary, to the heads of the various. departments, and these heads, in turn, paco his instructions down to their men, To ensure that his instructions are carefully and loyally carried out, the Governor has to review the work and prog- ress of each department from time to time.
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