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1、2020學(xué)年人教版英語精品資料
Section_ⅠWarming Up & Reading — Prereading
While everybody enjoys fresh cut flowers around his house, few people know how to keep them for as long as possible.This may be done by keeping in mind a few simple facts.
An important thing to remember about cut flowers is that the
2、y are sensitive to temperature.For example，studies have shown that cut carnations (康乃馨) retain their freshness eight times longer when kept at 12℃ than when kept at 26℃.Keeping freshly harvested flowers at the right temperatures is probably the most important aspect of flower care.
Flowers cant liv
3、e very long by nature.Their biological purpose is simply to attract birds or insects, such as bees.After that, they quickly dry up and die.The process by which flowers consume oxygen and produce carbon dioxide, called respiration,_generates the energy the flower needs to give the flower its shape an
4、d color.The making of seeds also depends on this energy.While all living things respire, flowers have a high level of respiration.A result of all this respiration is heat, and for flowers the level of heat relative to the mass of the flower is very high.Respiration also brings about the eventual dea
5、th of the flower.Thus the greater the level of respiration, the sooner the flower dies.
How, then, to control the rate at which flowers die？By controlling respiration.How is respiration controlled？By controlling temperature.We know that respiration produces heat, but the reverse is also true.Thus b
6、y maintaining low temperatures, respiration is reduced and the cut flower will age more slowly.
Another vital factor in keeping cut flowers is the quality of the water in which they are placed.Flowers find it difficult to “drink” water that is dirty or otherwise polluted.Even when water looks and s
7、mells clean, it almost certainly contains harmful substances that can endanger the flowers.To rid the water of these unwanted substances, household chlorine bleach (含氯漂白劑) can be used in small quantities.It is recommended that 15 drops of chlorine bleach (at 4% solu tion) be added to each litre of w
8、ater.The water and solution should also be replaced each day.True (T) or False (F)：
1．The key to prolonging the life of cut flowers fresh is to keep newly picked flowers at the right temperature.( )
2．The underlined word “respiration” in paragraph three probably means breathing.( )
3．Flower res
9、piration gives the flower its shape and color.( )
4．The cleaner the water looks and smells, the better.( )
答案：1.T 2.T 3.F 4.F
Ⅰ.高頻單詞點擊
1．courtyard n．庭院；院子；天井
2．balcony n．陽臺；包廂
3．distant adj.遠(yuǎn)的，遠(yuǎn)處的→distance n．距離，間距；遠(yuǎn)方；遠(yuǎn)處
4．conflict n．斗爭；沖突→conflicting adj.相反的
5．goods n．貨物
6．a(chǎn)nchor n．錨 vi.
10、拋錨，錨定
7．tight adj.緊的，緊密的→tightly adv.緊緊地；堅固地
8．container n．容器→contain v．包含，容納，裝盛
9．restriction n．限制，約束→restrict v．限制
10．fluency n．流利，流暢→fluent adj.流利的→fluently adv.流利地
11．shave vt. & vi.剃；刮 n．刮臉，刮胡子，修面→shaver n. 剃須刀
12．thunderstorm n．雷雨，雷暴
13．a(chǎn)ppeal n．懇求；呼吁 vi.(對某人)有吸引力→appealing adj.有吸引力的，有趣
11、的
14．botanist n. 植物學(xué)家→botany n. 植物學(xué)→botanical adj. 植物學(xué)的
Ⅱ.重點短語必記
1．a(chǎn)dapt to 適應(yīng)于
2．date back to 追溯到；遠(yuǎn)在……年代
3．on a large scale 大規(guī)模地
4．take interest in 對……感興趣
5．set up 資助；(使)開始從事某種職業(yè)
6．come across 遇到；碰見
7．quantities of 大量的
8．a(chǎn)ppeal to (對……)有吸引力；呼吁
9．a(chǎn) vast variety of 大量的，各種各樣的
12、Ⅲ.常用句型必備
1．Collecting_“exotic”_plants,_as_they_are_called,_dates back to the earliest times.
2．However, it_was_not_until the eighteenth and nineteenth centuries that the exploration of the botanical world began on a large scale.
3．Cook called the bay where the Endeavour had anchored Botany bay.
13、4．Not_only_did_Fortune_introduce over 120 species of plants to Western gardens but_he_also_shipped 20,000 tea plants ...
Ⅳ.課文大意理解
1．Which one of the following is the topic of Paragraph 1?
A．When plant collecting began.
B．When and where plant collecting began on a large scale.
C．Wardian case.
D
14、．Problem of keeping plants alive on long trips.
2．What happened in the 1740s?
A．Plants from Heaven seeds were grown throughout Europe.
B．A French Catholic missionary called Father d Incarville was sent to Beijing.
C．Some Tree of Heaven seeds arrived in England.
D．The tree of Heaven was introduc
15、ed into North America.
3．Transporting plants over long distances was a big problem.Why was this?
A．It was hard to keep them alive during long trips.
B．The weather is bad.
C．It costs too much.
D．There is not enough water.
4．How did French missionaries come to be plant collectors?
A．They believ
16、ed in God.
B．When they were in universities they studied natural science.
C．They valued the study of the natural sciences and many of them knew a lot about plants and animals.
D．They learned from other plant collectors.
5．Who was able to collect a large quantity of seeds of the Dove Tree that Fa
17、ther Farges had discovered?
A．Father Farges.
B．Robert Fortune.
C．E H Wilson.
D．Dr Nathaniel.
答案：1～5 ABACC
Ⅴ.根據(jù)課文改錯
1．The first plant collecting expedition records in history was around 1500 BC.
records→recorded
2．However, it was not until the eighteenth and nineteenth centuries what the exp
18、loration of the botanical world began on a large scale.
what→that
3．Brave young men grasped the opportunity of going on botanical expeditions.
grasped→took
4．At that time, there were restrictions to the movement of Europeans.
to→on
5．Father Farges collected 37 seeds from a tree that has appeal
19、ed to him.
has→had
Ⅵ.課文縮寫填空
The plants in our gardens look familiar, __1__ in fact many of them date back __2__ many years ago.In the past, many civilisations saw the value of bringing back plants.So many of them did it.__3__， it wasnt popular until the 18th and 19th centuries.At that time, many
20、brave young men took the opportunity __4__ (find) new plants, such as Father dIncarville, sir Joseph Banks.But keeping plant alive was an enormous challenge. __5__ (face) the problem, Dr Nathaniel Ward __6__ (invent) the Wardian case.
Between 1843 and 1859, there were__7__ (restrict) on the movemen
21、t of Europeans and so, in order to travel unnoticed, he developed his __8__ (fluent) in Chinese even __9__ (shave) his head in the Chinese style. He experienced many adventures and succeed shipping plants to the western countries.
Although the missionaries collected large numbers of specimens, there was not enough material __10__ growing particular species in western gardens, many plant collectors managed to introduce many new plants to western gardens.
答案：1.but 2.to 3.However 4.to find 5.Facing 6.invented 7.restrictions 8.fluency 9.shaving 10.for
2020高中英語人教版 選修9教師用書：Unit 4 SectionⅠ Warming UpReading — Prereading Word版含答案
