高中英語 Unit4Exploring plants-Using language課件 新人教選修9

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Reading and discussion on P37,Flowers and their animal pollinators,Bee,Humming-birds,Butterflies,moth,Difficult words and expressions,evolve evolution attach to bat tube odour give out,發(fā)展；進展；進化,發(fā)出；分發(fā),氣味,管子,演變；進化,附上；貼上,蝙蝠,What is the text about? What do pictures show you? What is the chart about?,1,The text is about flowers and their animal pollinators. The pictures show different kinds of animal pollinators and their flowers. The chart lists animal pollinators and the characteristics of the flowers they pollinate.,Answer the questions.,1. What is the advantage for animals of visiting flowers? Animals get food called nectar from the flowers. 2. Why do some plants need animals? Some plants need animals to pollinate them.,2,3. How does an animal pollinate a flower? An animal pollinates a flower by collecting pollen from a flower and passing it onto another flower.,4. What features of a flower are important in attracting animal pollinators? The features of a flower that are important in attracting animal pollinators are its colour, shape, size and smell.,5. What is nectar? Nectar is a sweet liquid produced by flowers and collected by bees. 6. What kinds of animals are most flowers pollinated by? Most flowers are pollinated by bees, moths and butterflies.,True or false,1. Bees follow coloured lines to the nectar inside the flower. 2. Flowers that are white or pale can be seen by night pollinators. 3. Butterflies are attracted to sweet-smelling flowers.,T,T,F,3,4. Bats pollinate flowers at night. 5. Flower colour is not important to hummingbirds. 6. All pollinators need to land on the flower if they are to find the nectar.,T,F,F,Find other nouns in the chart that mean the same as “smell”. List adjectives from the chart that are used to describe different kinds of smells.,Nouns that mean “smell”: ______ ________. Adjectives that describe smells: _______________________________________________.,odour,,perfume,delicate, fragrant, odourless, strong, sweet, musty, fruity,4,1. evolve,evolve 常用作不及物動詞，意為“進化，形成，發(fā)展”，常與from 搭配使用，意為“從……發(fā)展而來”。如： The present British political system has evolved over several centuries. 英國的現(xiàn)行政治制度是經(jīng)過幾個世紀逐步發(fā)展而成的。,單詞講解,The developmental history of society tells us that man has evolved from the ape. 社會發(fā)展史告訴我們?nèi)耸菑念惾嗽尺M化來的。 ★其名詞形式為 evolution, 意為 “進化，演變，發(fā)展，漸進”。,如： 1）. Darwin’s theory of evolution has been widely accepted. 達爾文的進化論已經(jīng)被廣泛接受。 2）. The farmers benefit a lot from the evolution of farming methods. 耕種方法的發(fā)展使農(nóng)民大大受益。 ★其形容詞形式為evolutionary, 意為“演變的，進化的，逐漸發(fā)展的”。如： The change has been evolutionary. 變化是漸進的。,[小試] 翻譯下列句子。 這位設計師逐漸形成了自己的風格。 2. 這家公司已經(jīng)發(fā)展成為一家大機構(gòu)。,The designer gradually evolved the style of his own. The company has evolved into a large organization.,2. attach,attach sth. to sth. 表示“把……附加、系上或縛在……上” 。如： He attached a label to each piece of luggage. 他把每件行李都貼上標簽。 attach to sb. / sth. 表示“（使）與……有聯(lián)系，與……有關聯(lián)”。如： It was just an accident and no blame attaches to either of you. 這只是一個意外，你倆一點責任也沒有。,attach importance / value / weight, etc. to sth. 表示“認為……有重要性/價值/分量等”。如： We should attach primary importance to the development of economy. 我們應把經(jīng)濟發(fā)展放在首要位置。,be attached to表示 “（變得）喜歡，依戀，對……有感情”。如： I am much attached to my family. 我對我的家很依戀。 be attached to 還表示“附屬于”。如： This middle school is attached to a normal college. 這所中學附屬于一所師范院校。,attach oneself to sb. / sth. 表示“依附某人，參加某事”。如： He attached himself to the group of mountain climbers. 他參加了那個登山隊。,The hospital is attached to that university. 2. A young man attached himself to me at the party and I couldn’t get rid of him. 3. 在年底前你將一直屬于這一部門。 4. 我們已變得十分留戀這所房子，舍不得搬家。,這家醫(yī)院附屬于那所大學。 在聚會上有個年輕人總纏著我，我簡直無法擺脫他。 You’ll be attached to this apartment until the end of the year. We’ve grown very attached to this house and wouldn’t move.,