When did the scientists begin to develop the technology to add genes to Golden Rice?

This part is to test your ability to do practical writing ．You are required to write aletter．You can refer to the following information in Chinese ．You should write about 100 words on theAnswer Sheet．

假设你是黄海大学学生李明，得知计算机系 Professor Smith 要聘请一名教学助理（ teaching assistant），用英文写一封自荐信，内容包括：

（1）你的个人信息

(2)应聘条件（语言、计算机能力及其他）

（3）获得这份工作

He wants to write an article, which will attract public attention to the air pollution in this city.

The toys have to meet strict safety requirements before they can be sold to children.

Not long ago the scientists made a discovery that this “ waste ” material could be turned into plastics.

Grandma took it for granted that food prices would rise, so she bought a lot of rice.

Before you leave the office, please (connect) _____your computer from the Internet.

Without the encouragement and help of my friends, I would have quit school.

She has a (consider) _____ amount of influence on the president.

Why do you insist on (leave) _____ your dirty clothes all over the floor?

Lack of money puts us in a (disadvantage) _____ and unfavorable position.