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步步为赢"英孚"口语教室中级第93课:昆虫的重要性

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Importance of insects 昆虫的重要性

By the end of this lesson, you will be able to identify stress-related problems and offer solutions.

ADVENTURER: When you think of endangered species, which animals do you think of? The tiger? The elephant? The panda? Ah, I get it.

ADVENTURER1: You like the rock stars of the animal world, the famous, good looking ones, hey? The ... celebrities. Me too. I mean, which animals do you prefer: the lion ... ... or the ... beetle? It's just not easy to like ugly animals, is it?

ADVENTURER2: Especially ... insects. Insects! They're everywhere! You know, there are more than a million known species of insect, and maybe as many as thirty million species that we don't even know about yet! Whoa!
ADVENTURER3: That's a lot of bugs! But what good do insects do for us? Well ... you like honey, don't you? What about that nice silk shirt? Both made by bugs ... and, can you imagine, if there were no spiders, how many flies there'd be?

ADVENTURER4: We need insects to eat other insects! And in fact, some insects are delicious! Full of protein. Oh, and perhaps the most valuable thing insects do for us: pollination. Insects help make it possible for flowers and grasses to reproduce.

ADVENTURER5: We all agree that flowers are beautiful, right? Well, if there were no insects, there would be a lot less flowers. Furthermore, all the animals at the top of the food chain depend on animals and insects at the bottom of the food chain. Think about it. If there were no insects, there might be no lions, no tigers, no elephants, no ... humans.

重点单词   查看全部解释    
valuable ['væljuəbl]

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adj. 贵重的,有价值的
n. (pl.)贵

联想记忆
identify [ai'dentifai]

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vt. 识别,认明,鉴定
vi. 认同,感同身

 
pollination [pɔli'neiʃn]

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n. 授粉

 
protein ['prəuti:n]

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n. 蛋白质

 
reproduce [.ri:prə'dju:s]

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v. 再生,复制,生殖

 
species ['spi:ʃiz]

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n. (单复同)物种,种类

 
beetle ['bi:tl]

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n. 甲虫 n. 大锥,小木槌 vi. 忙碌地来回,突出

 


关键字: 步步 英孚 口语

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