(1)The body needs enough calories to ________________(正常运转).

(2)The ____________(作用)of an adjective is to describe or add to

the meaning of a noun.

(3)__________________________(心脏的功能)is to pump blood

through the body.

(4)这台机器不能正常运行。(写作小练笔：主谓；machine, properly)

______________________________________

function properly

function

The function of the heart

The machine does not function properly.

考点5. balance vt. & vi.& n.平衡

It is probably better, however, if we spend our time and money in buying good food and keeping a balanced diet.

A balanced diet provides nutrition for your body.

均衡的食物使你的身体获得营养.

balance vt. 权衡

balance n. 平衡；余额

keep one's balance 保持 平衡

lose one's balance 失去平衡

(1)The child couldn't _______________(保持平衡)on his new bicycle.

(2)He______________(失去平衡)and fell over.

(3)我们应该保持生态平衡。(写作小练笔：主谓宾；nature)

____________________________________

(4)We try to find a proper _______ between the entirely demands of

the two parties.

A. benefit B. need C. support D. balance

D。balance用作名词"平衡"。

keep his balance

lost his balance

We must keep the balance of nature.

考点6. gain vt. 增加；获得

Sugar: Bad for your teeth and can make you gain weight.

He gained admission into this university.

他获准进入这所大学。

gain vt. & vi. 获得，得到

gain weight 增加体重

gain vi. (钟、表)走快

gain on 追上，赶上，逼近