一、写作部分
2015年12月四级考试写作部分要求考生写一篇关于“网络购物”的议论文。以下是一篇参考范文：
With the rapid development of the Internet, online shopping has become a popular way of shopping among young people. Some people believe that online shopping is a good choice, while others hold the opposite opinion.
Those who support online shopping argue that it offers great convenience. For example, customers can buy anything they need without leaving their homes. Additionally, online shopping is often more affordable than traditional shopping. Furthermore, customers can compare products and prices from different websites, which helps them make more informed decisions.
However, there are also some drawbacks to online shopping. First, it is not always easy to return or exchange goods purchased online. Second, some websites may sell counterfeit products, which can be harmful to customers. Last but not least, online shopping can lead to excessive consumption and waste.
In my opinion, online shopping has both advantages and disadvantages. It is important for us to make wise choices and balance our consumption. We should be cautious when shopping online and avoid buying fake products. At the same time, we should also support local businesses and shops.
二、听力部分
听力部分包括短篇新闻、长对话和听力篇章。以下是对每个部分的解析：
1. 短篇新闻：主要考查考生对新闻内容的理解和概括能力。考生需要关注新闻中的关键信息，如时间、地点、人物和事件等。
2. 长对话：主要考查考生对日常对话的理解和推断能力。考生需要关注对话中的主要观点和论据，以及说话者的意图。
3. 听力篇章：主要考查考生对长篇文章的理解和总结能力。考生需要关注文章的主旨、论点和论据，以及作者的观点和态度。
以下是一篇听力篇章的参考答案：
Passage One
Q1. What is the main topic of the passage?
A. The benefits of online shopping.
B. The drawbacks of online shopping.
C. The impact of online shopping on society.
D. The reasons for the popularity of online shopping.
解析：根据文章内容，我们可以知道文章主要讨论了网络购物对社会的影响，因此答案为C。
Q2. What is the author's attitude towards online shopping?
A. Positive.
B. Negative.
C. Neutral.
D. Critical.
解析：根据文章最后一段，我们可以看出作者对网络购物持中立态度，因此答案为C。
三、阅读理解部分
阅读理解部分包括词汇理解、长篇阅读和仔细阅读。以下是对每个部分的解析：
1. 词汇理解：主要考查考生对词汇的掌握程度，包括词义辨析、同义词和反义词等。
2. 长篇阅读：主要考查考生对文章的整体理解能力，包括主旨、论点和论据等。
3. 仔细阅读：主要考查考生对文章细节的理解和推理能力，包括作者的观点、态度和论据等。
以下是一篇阅读理解的参考答案：
Passage Two
Q1. What is the main idea of the passage?
A. The importance of environmental protection.
B. The causes of pollution in China.
C. The measures to reduce pollution in China.
D. The effects of pollution on human health.
解析：根据文章内容，我们可以知道文章主要讨论了中国环境污染的原因，因此答案为B。
Q2. What is the author's attitude towards the pollution problem in China?
A. Optimistic.
B. Pessimistic.
C. Indifferent.
D. Critical.
解析：根据文章第二段，我们可以看出作者对中国的污染问题持批评态度，因此答案为D。
四、翻译部分
翻译部分要求考生将一段英文翻译成中文。以下是一篇翻译的参考答案：
The Internet has brought great convenience to our lives. It allows us to communicate with people from all over the world, access a vast amount of information, and even conduct business transactions online. However, with the rapid development of the Internet, it also brings about some challenges. For example, cyberbullying, online fraud, and privacy issues have become increasingly common. Therefore, it is essential for us to use the Internet responsibly and safely.
