本集核心英语单词及例句：

1.thumb (n.)拇指
She still sucks her thumb when she's worried.
她在忧虑时仍然会吸吮大拇指。

2.principle (n.)原理
They are agreed in principle but not in detail.
他们的看法在原则上是一致的，但是在细节上有所不同。

3.recycle (v.)回收利用
This sort of recycle of waste materials is a way of reducing pollution.
这种废材料的循环使用是减少污染的一个途径。

4.tuna (n.)金枪鱼
I don't like eating tins of tuna fish.
我不喜欢吃金枪鱼罐头.

5.yoghurt (n.)酸乳酪，酸奶；酸牛奶
I only had strawberry yoghurt for breakfast.
我早餐只吃了草莓酸奶。

6.carton (n.)硬纸盒；塑料盒
She was so thirsty that she drank a carton of orange juice.
她渴极了，喝了一纸盒橙汁。

7.vessels (n.)容器
He makes decorative vessels in copper，stain steel and silver.
他用铜、不锈钢和银制造装饰性器皿。

8.mud (n.)泥，泥淖
His uniform was crumpled, untidy, and splashed with mud.
他的制服皱巴巴的，邋遢不堪，还溅上了泥点。

9.pea (n.)豌豆
He started tipping the peas into a pan.
他开始把豌豆倒进锅中。

10.predilection (n.)偏爱，偏好
He has a predilection for rich food.
他偏好油腻的食物。

11.insect (n.)虫，昆虫
The insect's wings are almost transparent.
这昆虫的翅膀几乎是透明的。

12.nepenthes (n.)猪笼草
Nepenthes can catch and digest insects.
猪笼草能够抓捕和消化昆虫。

13.venus (n.)捕绳器，捕绳草
The venus flytrap lures flies into its trap with pink leaves that ooze nectar.
捕蝇草利用能渗出花蜜的粉红叶子诱使苍蝇飞进陷阱。

14.dirt (n.)泥土；污垢
His clothes were covered in dirt.
他的衣服沾满了污垢。

15.humid (adj.)潮湿的；湿气重的
Glasses and camera lenses can also suffer in humid conditions.
眼镜和照相机的镜头也常常在潮湿的情况下模糊不清。

16.slice (n.)薄片；一部分
Try to eat at least four slices of bread a day.
每天尽量至少吃4片面包。

17.cultivate (vt.)耕作；教养，栽培
We should cultivate the good habits of diligence and frugality.
我们要养成勤俭节约的好风气。