New words：

goblin ['gɔblin] n. (传说中的)小妖精，丑妖怪

Sample Sentences：

He looked like a goblin in those clothes.
The hero in this fairy story is an ugly goblin.
He held my hand really tight when the goblin jumped out.

New words：

blossom ['blɔsəm]
n.花朵
v.开花

Sample Sentences：

The apple trees are blossoming.
The apple trees are in blossom.
The sunshine will bring out the blossom.
Her daughter is blossoming into a beautiful girl.

New words：

serpent [ˈsɜrpənt] n. 蛇；（尤指）大蛇
cast [kɑ:st] v. 蜕(皮)；脱(壳)；脱落

Sample Sentences：

Serpents cast their skin once a year.
I killed a serpent but my fear's always there.
The peach trees cast all their blossoms after the heavy rain.

blossom ['blɔsəm] n.花朵

New words：

period ['piəriəd] n. 时期；阶段；周期；课时

Sample Sentences：

Which period of history are you studying?
We have three periods of chemistry a week.
This was the most difficult period of his life.
He was on his feet again after such a long period in hospital.

New words：

cough [kɔf]
n.咳嗽；咳嗽声；咳嗽病
v.咳嗽；（从喉咙或肺中）咳出

Sample Sentences：

The old lady had a bad cough.
The doctor has given me some medicine to take for my cough.

Cover your mouth when you cough.
She coughed blood again this morning.