《2025年金版新学案高中英语选择性必修第二册北师大版》

情境话题 拓展应用
语法填空（加黑部分为本单元重点词汇）
The day before yesterday I heard a story about a boy who was 1. occupied (occupy) in playing computer games with headphones all the day. Every day from dawn to night，he locked himself in his room，never switching 2. on the light. There was nothing that could distract his attention 3. from computer games. He never went out until he had to buy 4. necessities (necessity)，let alone going to school. For this reason，his mother cried 5. constantly (constant).
6. To promote (promote) his study，his father took away his computer. Therefore，no access 7. to the computer was given to him in his family. However，he relied 8. on the computer so much that he went to the net bar to play. Unfortunately，his health broke down after playing computer games without food，water or rest for three days. From this matter，we can learn that we should motivate teenagers 9. to look (look) on the computer as a tool and use it 10. appropriately (appropriate).

答案： 1.occupied 2.on 3.from 4.necessities 5.constantly 6.To promote 7.to 8.on 9.to look 10.appropriately

外刊美文 纵横贯通
We've all heard it：There is no such thing as bad weather，just bad clothing. When it's icy outside，you may be trying to grab the thickest and heaviest jumper to stay warm. But those in the know wear a series of layers (层)in cold weather，known as “the layering system”. This is because wearing multiple thin layers will keep you warmer than a single thicker layer.
The secret of “the layering system” exists in what we cannot see：air. Surprisingly，air is a great insulator(绝缘体). When we layer clothes on top of each other，we are trapping air between the layers. Our body heat then warms the air and the layers keep that cozy space contained next to our skin. That's why you get hotter as your physical movement increases—you're creating more body heat that sits next to your skin.
Think of your layering system as a sandwich，instead of bread，meat，and vegetables，we're looking at three layering components：a base layer，a mid layer，and an outer layer. The base layer is very important as it helps move
【词海拾贝】
1. in the know 懂行的人
2. body heat 体温
3. base layer 里层，底层
4. natural fiber 自然纤维
5. synthetic material 合成材料
6. hold onto 保持住
sweat away from your skin quickly，keeping it dry and trapping warm air against your body. Choose natural fibers like wool or bamboo，or synthetic materials such as nylon and polyester，but cotton is not recommended because it holds onto moisture(水分)and makes you feel wet and cold. The mid layer's role is to trap body heat，so fleece，wool，and down are all good choices. The outer layer acts as a barrier，shielding the body from moisture and wind，which is why jackets and snowsuits are perfect choices. Moreover，don't forget to choose appropriate footwear，as well as a hat and scarf，for additional protection.
In conclusion，layering your clothes is a science. By understanding the layering system and choosing appropriate clothing，one can stay warm and comfortable even in the coldest weather.
【阅读理解】
阅读文本，回答问题
1. How does “the layering system” help people keep warm?
By trapping body heat between the layers.
2. Which material should be avoided as a base layer?
Cotton.

答案： 1.By trapping body heat between the layers. 2.Cotton.