选修九 4.4Unit 4　Reading

1、新课标人教版课件系列 高中英语 选修选修( (模块）模块）9- 9-4.4 how much do you know about plants? warming up do you know that? 1. some plants do not have flowers? for example pine trees, cypress trees, ferns, mushrooms. with these plants, the seeds are not contained inside a fruit. flowering plants have seeds that are conta

2、ined inside fruit. 2. some plants have roots that live in the air? for example, mangrove trees live in wet conditions and have roots that grow up from the mud into the air to absorb oxygen (see picture a, the mangrove tree). other plants that have aerial roots are plants such as some ferns, some orc

3、hids and climbers in rainforests that use their roots to attach themselves to other plants. their roots not only attach the plant to the tree but also absorb water from the air (see picture d, the birds nest fern). 3. some plants eat meat? they get their food from animals by trapping insects that la

4、nd on them, killing them and then digesting their bodies with chemicals. picture b shows an insect-eating plant called a venus flytrap. when the hairs on the leaves are touched by an insect, the two parts of the leaf snap together and trap the victim. 4. some plants need animals to pollinate them? t

5、hey have developed flowers with different characteristics to attract particular animal pollinators such as bees, flies, butterflies, birds, bats, beetles, and moths. plants that do not have flowers need other ways of making sure that they are pollinated, for example, corn, grasses and many trees dep

6、end on the wind or water to transport pollen from one plant to another. 5. some plants grow on other plants? they use their roots to attach themselves to another plant. some use their roots to absorb water from the air (see picture d). plants like this are different from parasitic plants that actual

7、ly live on another plant and get their food from the host. 6. plants are adapted to live in specific environments? for example, plants that live in the tropics are adapted to living in a hot wet climate. picture c shows palms that live in tropical climates. plants that are used to cold conditions ca

8、nnot necessarily live in hot conditions. 7. people buy plants that come from other countries for their gardens? people tend not to think about where the plants in their pots or gardens come from. in fact, many come from other countries, for example, tulips from southern europe and turkey, carnations

9、 from southern europe and greece, evening primroses from north america, daffodils from the mediterranean area, crane flower from south africa, daisies and violets from europe, etc. 8. a new plant does not always grow from a seed? new plants often grow from underground roots or stems, for example, th

10、e bamboo makes new plants by sending up new shoots from underground stems. strawberry plants and many grasses and some ferns send out stems that run along the top of the ground and new plants grow along these stems. other plants, like the daffodil, make new plants from bulbs. new plants can also gro

11、w from stems that have been cut from a plant. some special plants do you have a courtyard or some pot plants on your balcony? do you know where these plants come from? are they chinese plants or do they come from another country? pre-reading when you last visited a public garden, did you look at the

12、 individual plants there? were there any plants from other countries? how do you think plants have traveled from one country to another? joseph banks 1768-1771 dr nathaniel ward http:/ bagshaw-ward.htm dr. nathaniel bagshaw ward (1791-1868) for an individual who influenced the modern world so greatl

13、y, surprisingly little is know about dr. nathaniel ward. born in london, ward developed an early interest in the natural world, despite his urban surroundings. it is believed he was sent to jamaica when he was thirteen, where he may have developed his interest in tropical foliage. he practised as a

14、physician in the east end of london (some records suggest that he was a surgeon) and pursued his interests in botany and entomology in his spare time, and when on vacation in cobham, kent. the wardian case robert fortune (1812-1880) represented the horticultural society of london (now the royal hort

15、icultural society) as a collector in china shortly after the treaty of nanjing had brought the opium war to a close. through his use of the wardian case, fortune was able to introduce many of the best-known chinese garden plants into cultivation in europe and north america. pre paul guillaume farges

16、 (1844 - 1912) pre paul guillaume farges (1844 - 1912) french missionary and naturalist. born at monclar-de-quercy, tarn-et-garonne. he was sent to china in 1867 and remained stationed in north-east sichuan until 1903. although he had always nurtured an interest in the local flora and fauna, it was

17、not until 1892 that he started to collect herbarium specimens in earnest. during the eleven years before he moved south to chongqing, he collected and preserved over 4,000 specimens. dove tree ernest henry wilson (1876 - 1930) scan the title of the reading passage and the pictures, then predict what

18、 it is about? plant exploration in the 18th and 19th centuries reading main idea the reading text is about the exploration for plants in the 18th and 19th centuries. it gives examples of plant collectors who were well known during that time and the challenges that faced them. find the answers to que

19、stions like the following: what is an exotic plant? a plant that comes from another country. what was the name of lieutenant james cooks ship ? the endeavour why did james cook call the bay where his ship stopped botany bay ? because it was the bay that joseph banks collected many new botanical spec

20、imens. why were the sealed glass containers called wardian cases? because they were named after the person who invented them - nathaniel ward. what were the names of the people mentioned in the text who collected plants in the 18th and 19th centuries ? father dincarville, sir joseph banks, robert fo

21、rtune, father farges, e h wilson detailed reading: try to get the main idea of each paragraph: para 1: explains when plant collecting began. para 2: describes when and where plant collecting began on a large scale by europeans. para 3: talks about french catholic missionaries who collected plants in

22、 china in the 18th century. comprehending para 4:is about the famous british plant collector, sir joseph banks, who collected many new plants in australia. para 5: explains the problems of keeping plants alive on long trips. para 6:describes an experiment carried out by dr nathaniel ward who invente

23、d a glass case in which to transport plants on long journeys. para 8: is about father farges, a french catholic missionary who collected plants in china in the 19th century. para 7: is about robert fortune, a british plant collector who made several trips to china in the 19th century. para 9: descri

24、bes how many european plant collectors, such as e h wilson, went to china so that new plants could be introduced to gardens in the west. structures: part i: para1-2 the beginning of plant collecting part ii:para3-4 the exploration of plants in the 18th century part iii: para 5-7 the invention and us

25、e of wardian case part iv:para 8-9 the exploration of plants in the 19th centry timepeople/plantshistoric events in 1500 b.c father dincarville sent ships to gather plants, animals and other goods the queen of egypt in the 1740s was sent to beijing comprehending tree of heaven seeds collected plants

26、 in australia in 1784 the tree of heaven tree in 1751arrived in england in 1769 sir joseph banks was introduced into north america in 1833 shipped two cases of british plants to sydney robert fortune during the second half of the 19th century were sent to china from france nathaniel ward 1843-1859 m

27、ade several trips to china many catholic missionaries father farges collected a large quantity of the seeds of the dove tree in china in 1897 sent seeds of dove tree from china to france in 1899e h wilson answer these questions in groups. 1 why was there a lot of plant collecting in the eighteenth a

28、nd nineteenth centuries? europe had become interested in scientific discovery and the european middle classes took great interest in collecting new plants at this time. 2 how did french missionaries come to be plant collectors? they valued the study of the natural sciences and many of them knew a lo

29、t about plants and animals. 3 3 what were some of the negative aspects of plant collecting expeditions? negative aspects included disease, near-starvation, severe environment, conflicts with the local people, plants dying during long trips or seeds failing to grow after long trips, pirates, bad weat

30、her (like thunder storms), not knowing the local language and customs, etc. 4 transporting plants over long distances was a big problem. why was this? it was hard to keep them alive during long trips. 5 why did many plants fail to reach their destinations alive? can you think of any other reasons? i

31、t was hard to keep them alive during long trips. the seeds of many plants failed to grow after long trip: plants were not looked after properly during the trip. for example, one plant explorer lost his plants when they were watered with sea water. other reasons include lack of fresh water, wrong env

32、ironmental conditions, for instance, incorrect temperatures, salty air, and lack of sunlight and rain, etc, if the plants were transported inside the ship or train. 6 what improved the survival rates of plants transported long distances? it was the invention of the wardian case. suggested answer to

33、exercise 4: 4 peach tree chrysan- themum red dates advantages for trade 1 very sweet fruit 1 travels well 1 medicinal plant 2 will sell well 3 will grow easily 2 many varieties 3 grows anywhere 4 garden flower 2 for poor appetite 3 easy to prepare 4 grows anywhere disadvantages dis- advantages for t

34、he voyage trees need much water, warmth and protection on ship can carry a few but costs high must not dry out must separate varieties profit low for each but many can be taken need space must separate varieties many can be taken profit reasonable discovering useful words and expressions complete th

35、e sentences with suitable words or expressions from the text. 1 i love going on walks and looking at plants. in fact, i think ill study _ at university. 2 he speaks spanish with great _ though he is not good at writing it. learning about language 1 botany fluency 3 the palace we are going to visit t

36、omorrow _ the 19th century. 4 in the centre of the block of flats there is a small _ where i can plant some flowers. 5 there are too many cars on the roads. i think there should be _ restrictions on car numbers. dates back to courtyard tight complete the paragraph with new words from the reading tex

37、t. the thought of another trip of thousands of miles on the high seas certainly did not _ to me, but there was no other way to get the _ to the _ islands of the pacific. we were unable to do any traveling across countries as there were too many _ by many of the governments and we could not move free

38、ly across borders. we had so many _ that they had to be _ packed on the ship. there was not much room left for the crew. 2 appeal goods distant restrictions containers tightly these crowded conditions resulted in a lot of _ and several fights. however, the worst part of the trip was sailing through

39、a wild _ , in which the rain did not stop for two days. after three months at sea, we finally arrived and lowered the _ in the harbor of our destination. we were dirty and had long beards, for we had no fresh water to wash in and we didnt _ at all. what a sight we were! conflicts thunderstorm anchor

40、 shave rewrite these sentences using to or for with the indirect object. 1 can you give me one kilo of ripe peaches? can you give one kilo of ripe peaches to me? 2 send me your report on irrigation as soon as youve finished it. _ _ . revising useful structures 1 send your report on irrigation to me

41、as soon as you have finished it. 3 he showed me the weeds so that i wouldnt pull out his new seedlings. _ _ . 4 my cousin brought me some spears from papua new guinea. _ _ . _ _ . he showed the weeds to me so that i wouldnt pull out his new seedlings my cousin brought some spears for me from papua n

42、ew guinea my cousin brought some spears from papua new guinea for me 5 i buy my fish fresh seaweed every month as its an important part of their diet. _ _ . _ _ . 6 susan handed him the string so he could tie up the box. _ _ . i buy fresh seaweed for my fish every month as its an important part of t

43、heir diet i buy fresh seaweed every month for my fish as its an important part of their diet susan handed the string to him so he could tie up the box complete the sentences using the -ing form or the infinitive of the verb as the object. use the words in brackets to help you. 1 barbara learned _ wh

44、en her uncle came to visit her family last summer. (ride / horses) 2 i enjoy _ _ , though i dont quite understand what they are about. (read / cartoons) 2 to ride a horse reading these cartoons from foreign countries 3 jim and mandy both denied _ _ . (see / car key) 4 i expect _ this year. (spend /

45、holidays / france) 5 charlie regretted _ . (invite / joseph / party) 6 jack finally agreed _ _ . (apologize / broken spade) having seen/ seeing the car key (s) to spend my holidays in france having invited / inviting to apologize to us for the broken spade each sentence below contains one mistake. f

46、ind the mistake and correct it. 1 could you begin by telling what you were doing at 9:30 on the evening of the 13th april? 2 my parents suggested to postpone our visit to the pyramids because we didnt have enough time to see them before we left egypt. 3 please stop interrupting to me when im explain

47、ing something. 3 me postponing me when im 4 in the morning the hunter showed me the way how to get to the track down the mountain. 5 he admitted me that he had done something wrong. 6 i will report them the kind of monument we are planning to build for the soldiers. how to get the way to to listenin

48、g and discussing on p.36 using language in groups, look carefully at the photos of the plants and answer the questions. 1 how would you describe each plant? what do you think is unusual about each plant? 2 one of the pictures shows pitcher plants and another shows “living stones”. which picture show

49、s which plant? the name of the plant in the other picture is rafflesia. 1 living stone rafflesia pitcher plants now listen to mark, gordon and andrea telling their class about these plants. which student talks about which plant? plant abc students name name of the plant mark pitcher plant living sto

50、nes or lithops gordon rafflesia arnoldii andrea unusual plant th: today mark, gordon and andrea are going to tell us about some unusual plants. mark, do you want to go first? m: sure. today, i want to talk about an insect-eating plant called a pitcher plant. listening text heres a photo of it. look

51、at this part here. its shaped like a pitcher. its actually a leaf even though it looks like a flower. its really clever-the insects are attracted by the sweet smell coming from what they think is a flower. but its a trap. once an insect goes down into the pitcher, it cant get out as there are small

52、hard hairs pointing downwards that prevent it from escaping. in the end, the insect falls down into a pool of liquid at the bottom of the pitcher and gets digested by the plant. s1: thats amazing! s2: what fantastic plants! th: gordon. g: these are the plants im going to talk about. theyre often cal

53、led “living stones”, but even though they do look a bit like stones, they are in fact plants. s3: wow! s4: how interesting! g: their scientific name is lithops and they come from south africa and nambia. the body of a lithops is actually a pair of leaves that have become rounded like a stone. this i

54、s because this plant lives in very hot and dry places. when the leaves are shaped like this, not much water is lost from the plant. another interesting thing about these strange plants is that theyre the same color and appearance of the soil and stones around it. this makes them less obvious to anim

55、al looking for food. th: thanks, gordon. andrea. a: im going to tell you about rafflesia arnoldii, a plant that has a flower about one metre wide. in fact, its the largest flower in the world. rafflesia arnoldii doesnt have any leaves, stems or roots. it doesnt need them as its a parasite. it gets t

56、his food by living on another plant. you might think that this flower should smell wonderful but it actually looks and smells like rotting meat! s2: oh, yuck! s1: thats disgusting! s3: i think its fantastic! a: me too. anyway, it attracts insects that eat dead animals but instead of getting a feed,

57、the insects pick up its pollen and spread it to other rafflesias, rafflesia arnoldii grows in the jungles in indonesia but as the forests are being cut down, its becoming very rare. th: thanks andrea and thanks everyone. those plants are certainly fascinating. listen again and complete the table wit

58、h the correct information. you might need to listen several times. 3 markgordonandrea name of plant reason for its name its smell pitcher plant its shaped like a pitcher (jug) living stones (lithops) they look like stones rafflesia arnoldii like rotting meat its shape its size how it gets its food l

59、ike a pitcher rounded small (like stones) from insects that fall into the pitcher from the soil round with large thick petals (this information is from the photo) one meter wide (the largest flower in the world) from another plant (it is a parasite) where it lives what its leaves are like how common

60、 it is how it is pollinated shaped like a pitcher hot dry places in south africa, namibia rounded like stones jungles in parts of indonesia doesnt have leaves it is becoming rare insects that eat dead animals listen to the other students reactions to mark, gordon and andreas descriptions of the plan