根据汉语提示补全单词

为了美化环境，某市加大对绿化的投资，2007年用于绿化的投资20万元，2009年用于绿化的投资是25万元，求这两年绿化投资的平均增长率，设这两年绿化投资的平均增长率为x，根据题意所列的方程为____ 

2013年7月28日是唐山大地震36周年的日子。2012年,河北唐山连续两次发生的地震引起人们的强烈关切。为此,专家根据1976年至今的监测数据分析,认为目前唐山地区地质活动处于稳定状态,不会发生大地震。

远古时代,由于人类认识水平和科学技术水平有限,地震预测难以实现。面对地震等不可抗拒的自然灾害,人们只能听天由命,服从所谓的“天意”。近代以来,随着人类认识水平的提高,尤其是各种认识工具的不断完善,人们对地震的预测水平不断提高。但是到目前为止,人类尚不能准确预报地震发生的时间、地点、震源、震级等。

    William Shakespeare is the greatest English writer 0f all time. Also Shakespeare was an actor and famous poet. The Sonnesls(十四行诗)and Romeo and Juliet are almost known in every comer of the world.
    Shakespeare was born in Stratford-upon-Avon, a small town in England, in 1564. In his youth, he moved to London and began a career as a playwright(~ij作家). By 1594, he had become a key playwright of popular acting company in the city.
    Shakespeare's work also has a big influence on the English language. Shakespeare was said to have had a huge vocabulary. His works included more than 30,000 different words. And he is master of words. He created about l,700 English, including everyday ones like "lonely", "hurry" and "critical".
    There are over 400 films and TV dramas adapted(改编) from Shakespeare's work. He wrote 400 years ago and his English was very different from that of today, but it doesn't affect his popularity. His plays have been translated into every major language and are performed more often than any other playwright.  Shakespeare is not of an age, but for all time.
Enjoy some of Shakespeare's works.
Romeo and Juliet
    Romeo and Juliet fall in love with each other when they meet at a ball. But unfortunately, their families are long-standing enemies and try to prevent the young lovers form being together. In order to stay with Romeo, Juliet takes medicine and pretends to be dead. But Romeo doesn't know and thinks Juliet has truly died. He kills himself. When Juliet wakes up, it is too late.
Hamlet
    Hamlet, the Prince of Denmark, is so sad when his father died. A month later, his mothermarries his uncle.
At this moment ,Hamlet knows that this uncle killed his father .All of this makes  Hamlet angry and hopeless .The only thing he wants is revenge（复仇） .Although he finally kills his uncle ,he is trapped（陷害） by bad guys and loses his life .
The Merchant of Venice
    Antonio,aVenetian merchant, borrows money from the moneylender Shylock. Shylock said that ifAntonio cannot pay back the money, he will get a pound of flesh(肉)from Antonio. Antonio loses all his business and must pay this terrible price. In order to help Antonio, his girlfriend Portia dresses up as a lawyer. Her wisdom not only saves Antonio but also punishes Shylock.