问题内容：
Writing a summary is an excellent way to understand what is read. This in itself is an important goal of academic study. If youdon'tunderstand your source material, chances are that you will not be able to refer to it usefully in an essay or a researchpaper.
问题内容：
试题答案：
Please let me know the reason why he didn’t accept my invitation to give a lecture.
Байду номын сангаас试题解析：
7、
Mike and Susan live in different cities. They call each other on a daily basis. (simple sentence)
问题内容：
试题答案：
When the final exam is approaching, some students take it seriously, while other students take it as it comes.
试题解析：
Anderson graduated from a local grammar school, after that he went on to Oxford University.
D.There are no nuclear power plants in such African countriesasEthiopia andRwanda.
试题答案： B
试题解析：
Topic Sentence包含两个部分：topic(话题)，和controlling ideas(中心思想)。Topic指的是整段文字的主题，controlling ideas指作者对这个话题的态度或者观点，读者通过这个中心思想，能够问出以下问题或其中之一：什么方式？为什么？怎么样？那意味着什么？等等
问题内容：
试题答案：
I’ve decided to give up my job as an engineer and to goself-employed.
试题解析：
5、
It was cold and windy. I brought a coat with me to the football game. (compound sentence)
问题内容：
试题答案：
Rachael discussed the issue with her brother who was an experienced lawyer.
试题解析：
4、
I've decided to give up my job as an engineer. I've decided to go self-employed.(simple sentence)
问题内容：
试题答案：
It was cold and windy, so I brought a coat with me to the football game.
试题解析：
6、
Please let me know the reason. He didn't accept my invitation to give a lecture. (complex sentence)
问题内容：
试题答案：
It’s commonly acknowledged that drawing a plan is easier than carrying it out.
试题解析：
than 前后成分应该是平行结构，前面是 drawing，所以后面应该是 carrying
5、
Judged from the look of the sky, we will have a storm this evening.
问题内容：
试题答案：
Judging from the look of the sky, we will have a storm this evening.
试题解析：
We 是前面动作的逻辑主语，是主动“judge”，所以不能用过去分词形式。
1、
Choose the best topic sentence from the four options below. Write the corresponding letter of your choice on the answer sheet.
问题内容：
试题答案：
Living in different cities, Mike and Susan call each other on a daily basis.
试题解析：
8、
The old man found it increasingly difficult to read. His eyesight was beginning to fail. (compound sentence)
Over the centuries, people have designed clocks that measure time in many different ways.
试题解析：
2、
I packed my bags. I waved good-bye. I went down the stone harbor steps.(parallel structure)
试题答案：
The reason you keep dipping your finger back into the chip bag has more to do with salt than with fat.
试题解析：
文章从 However，eating salt triggers the release…之后都是在说明“盐使我们的嘴停不下来”这个观点。
2、
Read the following paragraph and write the topic sentence. 问题内容：
You're not the only one who could eat up a bag of chips in one sitting. The reason you keep dipping your fingers back into the chip bag has more to do with salt than with fat. Normally, fat helps make a meal more satisfying as it provides high calories, so people don't want to just keep eating and eating. However, eating salt triggers therelease of dopamine(多巴胺),a chemical substancethat controls your brain's pleasure center. Once your brain gets that first reward hit, it starts wanting more. When food is low in salt, it's easy to practice self-control instead of overeating, but when you add salttothat food, all of a sudden, those controls aregone.
试题解析：
定语从句which is a two-story building的先行词是Center,因此应该紧随其后。
3、
Today, I didn't make good time driving to work. Because every traffic light along the way was red.
问题内容：
试题答案：
Today, I didn’t make good time driving to work, because every traffic light along the way was red.
试题解析：
because 是从属连词，引导原因状语从句，不能单独成句。
4、
It's commonly acknowledged that drawing a plan is easier than to carry it out.
2、
The Visitor Center stands next to a modem swimming pool which is a two-story building.
问题内容：
试题答案：
The Visitor Center which is a two-story building stands next to a modern swimming pool.
问题内容：
试题答案：
Anderson graduated from a local grammar school, after which he went on to Oxford University.
试题解析：
一个英语句子中只能有一套主谓结构，修改之前的句子将两个句子用一个逗号连接起来是错误的。
问题内容：
试题答案：
The old man found it increasingly difficult to read, for his eyesight was beginning to fail.