河北加拿大版初中英语--Lesson 9

UNIT 2
[00:03.08]Lessons 9~16   Plant a Plant!
[00:09.93]Lesson 9:
[00:13.27]Plant Parts
[00:16.72]How many parts do plants have?
[00:21.52]A plant has four main parts:Flowers,leaves and stems² grow above ground.
[00:32.18]Roots grow below ground.What do roots do?
[00:39.26]Roots bring water from the ground to the plant.
[00:44.72]What is the stem¹ for?
[00:48.48]The stem carries the water from the roots to the leaves and flowers.
[00:56.06]The stem holds the leaves and flowers in the sunlight.
[01:02.41]What are leaves for? Leaves make food for the plant.
[01:09.67]Why do plants have flowers?
[01:14.03]Is it because flowers are beautful?
[01:19.07]No!Plants have flowers because the flowers make seeds.
[01:25.94]New plants grow from seeds.
[01:30.31]What parts do we eat? People eat all parts of plants.A carrot is a root.
[01:40.47]Sugar is made from the stem of the sugarcane plant.
[01:46.63]We eat the leaves of cabbage.We eat the flowers of gai lan.
[01:54.10]The seeds of the rice plant feed billions of people.
[02:00.66]What's a billion? It's 1,000,000,000!
[02:10.61]FASCINATING FACT
[02:14.09]palm leaves
[02:17.56]The bamboo palm tree in South America has the biggest leaves in the world.
[02:26.70]One leaf can grow twenty metres long!
[02:32.37]Yikes!Twenty metres!
[02:37.34]That's ten of me!
 

1 stem   

n.茎，干，船首，词干，血统；vt.堵住，阻止，抽去梗；vi.起源于，发生

参考例句：

• Cut the stem cleanly,just beneath a leaf joint.把茎切整齐点，正好切在叶根下。
• The ship was in a blaze from stem to stern.整艘船从头到尾都着火了。

2 stems   

n.（花草的）茎( stem的名词复数 )；词干；（高脚酒杯的）脚；烟斗柄v.遏制[阻止]（液体的流动等）( stem的第三人称单数 )；封堵；遏止

参考例句：

• The present wave of strikes stems from discontent among the lower-paid. 当前的罢工浪潮起因于低工资雇员们的不满情绪。 来自《简明英汉词典》
• Her interest in flowers stems from her childhood in the country. 她对花卉的兴趣产生于她在乡下度过的童年时代。 来自《简明英汉词典》