New words：

faithful ['feiθfl] adj. 忠实的；忠诚的；如实的
faithfully [ˈfeɪθfəli] adv. 忠实地；如实地；忠诚地
faithless ['feiθlis] adj. 不忠诚的；不可信任的；不可信赖的

Sample Sentences：

A faithful friend helps in times of trouble.
Dogs are more faithful animals than cats.
If you don't keep promise, you are a faithless person.
He had supported the local team faithfully for 30 years.

New words：

faith [feiθ] n.信心；信任；相信；信仰
keep faith with sb. 守信用；忠诚于某人
break faith with sb. 对某人不守信用；不忠诚
have faith in 对…有信心；相信，信任
put faith in 对…有信心；相信，信任

Sample Sentences：

I'm going to put my faith in her.
He always keeps faith with his friends.
He always breaks faith with his clients.
He has great talent, but he has lost his faith.
I have great faith in you─I know you'll do well.

client [ˈklaɪənt] n.客户；当事人；委托人

New words：

confuse [kən'fju:z] v.混淆；使迷惑；使糊涂；使更难于理解
confused [kən'fju:zd] adj.糊涂的；迷惑的；不清楚的；混乱的
Austria [ˈɔːstrɪə] n.奥地利

Sample Sentences：

The road signs confused the driver.
He's always confusing salt with sugar.
Give me a break.I'm very confused now.
Please don't confuse Australia with Austria.
They asked so many questions that they confused me.
They asked me so many questions that I got confused.

New words：

cure /kjʊr/
n.治疗；对策；药；疗法
v.治愈；解决；矫正；治好（疾病）

Sample Sentences：

There is still no cure for a cold.
The only way to cure backache is to rest.
When I left the hospital I was completely cured.
He has blind faith in doctors' ability to find a cure.

New words：

riddle ['ridl] n.谜；谜语；谜题

Sample Sentences：

He could not solve the riddle.
He found out the riddle at last.
He got the answer to the riddle as quick as a flash.
Stop talking in riddles (= saying things that are confusing) ─say what you mean.