这一个方面一般在我们用到时间和钱这两个万能理由的时候会用到。
例：Describe the most efficient type of transportation in your country. Usedetails and examples to explain your response.
Topic: airplane
Reason 1: fast，save time
Reason 2: no traffic congestion
对于第一个reason, 我们可以直接给出数据和对比：
For example,it only takes me 2 hours to fly from one city to another, however, when Ichoose to take train, it may cost me more than 20 hours.充分说明taking airplane is more efficient.
例2：You prefer to watchmovie in the movie theater or at home.
Topic: at home
Reason 1: save money
Reason 2: have more options when choosing movies
对于第一个理由，我们可以用倍数形式来显示在家看电影多省钱：watching movies in the movie theater costs 2 timesmore than watching same movies at home.
例3：这座建筑很高。
The building is verytall.
扩展细节：
The building is as tallas 468 meters, ranking first in Asia and third in the world. There are 68spheres in the building and the three biggest ones are observatories, wheretourists can have a birds-eye view of the whole city. It has been the landmarkof the city since it was completed.
四、抽象的名词给出小的并列例子加以具体化
Example 1.那里有很多食物。
There is a lot of traditional Chinese food.
There is a lot of traditional Chinese foodlike Fried rice with egg, Gong pao Chicken, Ma Po Tofu, Dumplings, Pecking Duckand so on.
Example 2. 那里风景优美。
It has beautiful scenery there.
It has beautiful scenery there. I can smellthe grass and flowers,hear the cries of the birds, and feel the bracing breeze on my face.
Example 3我可以了解一些外国的好玩的事情
I would be able to know about interestingstuff in the foreign countries.
I would be able to know about interestingstuff including their customs, cultures, and histories.
下面我们再结合一些学生的回答，综合运用以上几个方法示范，怎么用细节扩展口语段落。
例1. describe a person you admire the most. Give specific details andexamples.
学生回答：Well, the personI admire the most is my English teacher Lee, who was teaching me at junior highschool. Here is some reasons I’d like to share with you.
Forstarters, my English teacher Lee is really responsible, he paid a lot ofattention on our school work and paper and help us improve.
Plus, hehas a sense of humor. He always tell us some stories to make us laugh, so wefeel relaxed in his class. All the students like his class.
So, thatis why I admire my English teacher most! Thank you.
分析：对于人物的描述，核心在人物的性格(quality,characteristics, features)的一个描写，该生描述老师responsible 和 humorous，但是都不充分，我们需要给出具体的表现和例子。
Responsible—forexample, he would use his spare time to give us lots of detailed comments onour paper in order to make us improve.
Humorous—hemay tell us some funny jokes or stories or even imitate the behaviors of Mr.Bean in the class, thus, we all feel relaxing in the class and can study muchbetter.
例2.Is it beneficial for studentsto have computers? Use details and examples in your response.
学生回答：
As far as I am concerned,I think it is good for students to have computers.
The mostimportant reason is that they can improve their study efficiency. They can usecomputer to search for some useful information to study better.
Anotherreason is that they can entertain themselves by using computer. Students havehuge pressure in study, when they go back home, they could use the computer torelease pressure.
分析：对于提高学习效率和娱乐放松，是我们常用的两个理由，但是我们可以用细节把这些理由说得更清楚。
Search forsome useful information using the computer à Forexample, when they write the paper or do research, they can find some materialsor resources online like the data, the examples, the statistical tests and soon.
Entertainthemselves and release pressure à for instance,they could watch some movies, listen to music or play games to escape from theloads of problems in study.
例3.Describe a subject which isdifficult but also important. Use details and examples in your response.
学生回答：well, the subjectwhich is difficult but important is Mathematics.
To beginwith, it is difficult. I am poor in math; I think I have to spend a lot of timedoing the math problems.
However,math is also very important. If I can’t study math well, I will also fail insome other science class like the physics.
分析：这个回答过于简略，没有结合这个学科谈具体的细节。比如在强调数学很难，可以给出很多细节原因：it needs strong logical ability, I have to recite lots of formulasand theories; it’s too abstract, hard to understand.
例4. Describe an interesting bookyou have ever read. Give specific reasons and details in your response.
学生回答：In my opinion,one interesting I have read is a cooking book, which is sent from my friendjerry before I went abroad to study.
To beginwith, I can learn how to cook using this book. It teaches me to do sometraditional Chinese food and also even some simple foreign food. If I can cookfood, I can take care of myself and even invite some classmates and friends toenjoy food cooked by me.
Inaddition, I could also learn some culture from other countries by knowing theirfood.
分析：对于这本书的描写还是不够，重点放在功能上，但是也不能忽略对于这个物体本身的描述。
比如在描写这本书能teach mecook.最好可以讲讲里面的内容和特色： it shows me the specific steps while cooking the food, even adds alot of vivid pictures, which makes it easier to follow while doing it bymyself.
此外第二点也是一样，只是提到learn some foreign culture about the food.
干脆后面再给一个例子，forinstance, When I make the sushi, a type of Japanese food, I learn that peoplein Japan like to eat some raw food, which is considered to be more nutritious.
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