Unit 4 Plants around us PartB Let’s learn课件(共20张PPT)

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Unit 4 Plants around us PartB Let’s learn课件(共20张PPT)

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(共20张PPT)
Unit 4 Plants around us
Let's learn B
What’s the video about
A. Plants. (植物)
B. Food.(食物)
植物
Which one is a plant
A.
B.
apple
tree
apple
tree
Look and learn
Which one is a plant
A.
B.
apple
tree
Let's learn (new words)
(不可数名词)
Which one is a plant
A.
B.
apple
tree
Think and guess
Plants give us so much. What do plants need
需要(动词)
Plants need sun.
阳光,太阳
Plants need air.
植物生长需要空气,因为空气提供了呼吸作用所需的氧气和光合作用所需的二氧化碳,对其生存和生长至关重要。缺乏空气会导致生长受阻、代谢紊乱甚至根系受损。植物需要氧气进行呼吸作用,以产生能量维持生命活动。在夜间或无光照条件下,植物通过吸收氧气来分解储存的养分。
.
Plants need water
名词:水
动词:给.....浇水:
Thank you for your listening

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