building

2、What is a gym? Why do you go to a gym?

3、What can you find in a gym?

Gym：beam：平衡木 , barbell杠铃 , basketball court篮球场 , skipping rope跳绳 , dumb-bell哑铃 , mat垫子 , rings吊环 , high bar高杠 , high-and-low bar高低杠 , side horse跳马 , floor自由体操 , double bar双杠 , horse with two handles鞍马

So when we see a name, we usually think of many things related to it：

e.g. Basketball：backboard（篮板）；basket（篮网）；rebound：篮板球；basket support：篮球架 player：运动员； foul：犯规； ring：篮； NBA/CBA：National Basketball Association / China Basketball Association

Or words in the same family：

e.g. Basketball：football , volleyball , golf , tennis , table tennis , soccer , baseball , softball垒球

Or words with the same meaning：

可能、可能性: may , maybe , perhaps , possible , probable , can , might , should

Or words with the same prefixes or suffixes：

prefixes：un- , im- , dis- , ir- , il- ....

suffixes：- less ...

Another way is derivation, that is to derivate a word from one word form to another form, such as from a verb to a noun, an adjective, or any other related form with the same meaning.

e.g. work - worker ; invent - inventor - invention ; act - actor / actress - action -

　　active - activity

So, when we see a new word, many times we can guess its meaning, using the knowledge we already have.

Homework

1、Write all the words related to "student", "family", "world"

2、Preview Grammar and finish the related exercises.

Language Focus:

1、need：情态动词与行为动词

2、make sure to do... / that....

make sure of / about.....

3、be available for sb.

be available to sb.