__________ is well known， light， like heat， is a form. of energy.

Directions: For this part， you are allowed thirty minutes to write a composition on the topic"On Excessive Packaging". You should write at least 120 words， and base your composition onthe outline given in Chinese below:

1．目前许多商品存在过度包装的现象；

2．出现这一现象的原因；

3．我对这一现象的看法和建议。

玛丽过去除了咖啡什么都不喝。

如果有机会，约翰也许已经成为一位杰出的画家了。

很明显是他的年轻助手在经营这家书店。

国庆节到了，咱们把寝室彻底打扫一下吧。

看外表他一点也不像一位八十岁的老人。

Apart from the so．called public schools there is a complete system of state primary and secondary education．which resembles in its general form. the state education in most other coun—tries．

Her first priority was public schools， helping to establish teacher testing.

After each war， new ideas， new attitudes， new trades and occupations were revealed to villagers.

It‘ s a day to celebrate， a time to educate， and a way to make. a difference. Earth day was first observed on April 22， 1970. The tradition began in the United States and is now an international focal point for people who are concerned about the environment.