求英语高手!Exercise IRead the following topic sentences and then

求英语高手!
Exercise I
Read the following topic sentences and then identify the topic (the main subject of the paragraph) and the controlling idea (what you want to say about the topic) in each sentence
1. There are several advantages to growing up in a small town.
2. Air pollution in Mexico City is the worst in the world for a number of reasons.
3. Effective leadership requires specific qualities that anyone can develop.
4. Industrial waste poured into Lake Michigan has led to dramatic changes in its ability to support marine life.

Exercise II
Please revise the following unfocused topic sentences into focused ones.
1. Too many people treat animals badly in experiments.
2. Finding the right job is important and can lead to rewarding experiences.

Exercice III
Write a topic sentence for each paragraph in the space provided.
1, __________________________________________________________________________________________________________________________________________Famous inventor Thomas Edison, for instance, did so poorly in his first years of school that his teacher warned his parents that he would never be a success at anything. Similarly, Henry Ford, the father of the auto industry, had trouble in school with both reading and writing. But perhaps the best example is Albert Einstein, whose parents and teachers suspected that he was retarded because he responded to questions so slowly and in a stuttering voice. Einstein’s high school record was poor in everything but math, and he failed his college entrance exams the first time. Even out of school the man had trouble holding a job--- until he announced the theory of relativity.

2, __________________________________________________________________________________________________________________________________________For example, couples have been exchanging rings to symbolize unending love for over a thousand years. Most often, the rings are worn on the third finger of the left hand, which was thought to contain a vein that ran directly to the heart. The rings in ancient times were sometimes made of braided grass, rope, or leather, giving rise to the expression “tying the knot.” Another tradition, the bridal veil, began when marriages were arranged by the families and the groom was not allowed to see his bride until the wedding. The tossing of rice at newlyweds has long signified fertility blessings, and the sweet smell of the bride’s bouquet was present to drive away evil spirits, who were also diverted by the surrounding bridal attendants. Weddings may vary enormously today, but many couplds still include ancient traditioins to signify their new life together.
Reference Key:
Exercise I
1. There are several advantages to growing up in a small town.
2. Air pollution in Mexico City is the worst in the world for a number of reasons.
3. Effective leadership requires specific qualities that anyone can develop.
4. Industrial waste poured into Lake Michigan has led to dramatic changes in its ability to support marine life.

Exercise II
1. Problem: What people? Badly how? What kinds of experiments?
Revision: The cosmetic industry often harms animals in unnecessary experiments designed to test their products.
2. Problem: vague language and a double focus “important” and “can lead to rewarding experiences”.
Revision: Finding the right job can lead to an improved sense of self-esteem.

Exercice III
1. Many scientists had very bad proficiency records in their school days
2. Almost every wedding tradition has a symbolic meaning that originated centuries ago.

Execise 1:
Subject:growing up in a small town
Controlling idea:several advantages
Exercise 2:
It has been discovered that too many animals have been treated badly during experiments.
Exercise 3:
In the path to sucess,there are many barriers and misperceptions by others,this can be depicted by some famous scientists.
亲,我是在用苹果手机看你网页的不可能来回翻动,就算你悬赏几百大洋也不可能.所以给你写了几个引导,句子不会有错的,比照着写就可以了.