New Words：

pleasure [ˈpleʒər] n. 快乐；高兴；愉快；乐事

Sample Sentences：

She took no pleasure in her work.
He finds great pleasure in reading.
It is a pleasure to welcome you to our home.
'Thank you for helping me.' — 'My pleasure.'

New Words：

yet [jet] adv.还；已经；现在；迄今为止；用于否定句和疑问句

Sample Sentences：

The moon has not risen yet.
‘Are you ready?’ ‘No, not yet.’
Has he finished the work yet?
I didn't receive a letter from him yet.

New Words：

plastic [ˈplæstɪk]
n.塑料
adj.塑料制的；塑料的；

Sample Sentences：

Plastics don't rust like metal.
We can use plastic to make cups.

Put your washing in the plastic bag.
A kind of plastic stuff is used to make the plates.

New Words：

tip [tɪp] v.翻倒，倾斜
tip over 打翻;翻倒

Sample Sentences：

Don't tip your chair back like that, you'll fall.
Tip the dirty water out of the bowl and into the sink.

I'm sorry I tipped the bottle over.
Our boat start to tip over, but it soon right itself.

New Words：

cause [kɔːz]
n.原因；起因；动机；理由
v.导致；使；引起；造成

Sample Sentences：

What was the cause of the accident?
The cause of the accident is still unknown.

Food poisoning can cause death.
It's hard to say what caused the accident.
The bad weather is causing problems for many farmers.