第一部分：词汇与语法
1. 词汇练习
题目：请从以下选项中选择正确的词组完成句子。
- (A) attend (B) attend to © attend with (D) attend on
解析：这里需要使用“attend to”表示“注意；照料”。因此，正确答案是 (B) attend to。
例句：She always attends to her children’s needs.
2. 语法练习
题目：选择正确的句子结构。
- (A) The cat is sleeping on the mat.
- (B) On the mat, the cat is sleeping.
- © The cat, on the mat, is sleeping.
- (D) On the mat, is sleeping the cat.
解析：正确的句子结构是 © The cat, on the mat, is sleeping。这里使用了倒装结构，强调“on the mat”。
第二部分：阅读理解
1. 阅读理解练习
题目：阅读以下短文，回答问题。
短文：With the rapid development of technology, people’s lives have been greatly changed. The internet has made it possible for people to communicate with each other easily. They can share information, photos, and videos with friends and family around the world. However, some people worry that the internet has made people more isolated and less social.
问题：What is the main idea of the passage?
答案：The main idea of the passage is that the internet has changed people’s lives, but it has also brought some negative effects.
2. 阅读理解练习
题目：阅读以下短文，回答问题。
短文：The importance of exercise cannot be overstated. Regular physical activity can improve cardiovascular health, reduce the risk of chronic diseases, and enhance mental well-being. It is recommended that adults engage in at least 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity aerobic exercise each week.
问题：What are the benefits of regular exercise?
答案：The benefits of regular exercise include improving cardiovascular health, reducing the risk of chronic diseases, and enhancing mental well-being.
第三部分：写作
1. 写作练习
题目：请根据以下提示写一篇短文。
提示：Describe a memorable trip you have taken. Include details about the destination, the people you traveled with, and the experiences you had.
解析：以下是一篇示例短文：
My most memorable trip was to Paris, France. I traveled with my best friend, Sarah, and we spent a week exploring the city. We started our journey by visiting the Eiffel Tower, where we took in the breathtaking views of the city. We then wandered through the charming streets of Montmartre, where we stumbled upon a cozy little café. We spent hours people-watching and enjoying the warm weather.
One of the highlights of our trip was a cooking class we took at a local bistro. We learned how to make classic French dishes, such as Ratatouille and Coq au Vin. It was a fun and educational experience, and we were proud of the delicious meal we prepared at the end.
We also visited the Louvre Museum, where we marveled at the works of art by famous painters like Leonardo da Vinci and Vincent van Gogh. The trip was filled with unforgettable moments, and I will always cherish the memories I made with Sarah in Paris.
总结
以上是对新编大学英语3课后习题的详细解析及答案。通过这些练习，可以帮助你更好地掌握英语词汇、语法和阅读理解技巧。同时，写作练习也能提高你的英语写作能力。希望这些解析对你有所帮助。