Nowadays，many of you want to do sports，but you often complain that you are too busy to go to gyms or stadiums(体育馆). Actually，there's no need to go to those places if you really want to exercise.
...
First，it's not a good idea to sit in a chair all the time. ...
Second，take the stairs(楼梯)instead of using lifts. ...
You can skip(跳绳)in the hallway. And you can do yoga(瑜伽)at home. You can also run if there is a yard.
A. How do you usually go home?
B. How often do you play soccer?
C. You can try using a standing desk.
D. Third，you can dance in the living room.
E. ...
F. ...
G. ...

点拨：根据上文“First，it's not a good idea to sit in a chair all the time.”和“Second，take the stairs instead of using lifts.”可知，此处应是“Third...”。故选 D。

【解析】
根据前文出现的“First...”和“Second...”的分点论述逻辑，此处需用“Third...”来承接上文的列举结构，选项D“Third，you can dance in the living room.”符合该语境与语篇衔接要求，因此选D。
【答案】
D
【知识点】
语篇逻辑衔接、语境推理
【点评】
本题考查学生对英语语篇结构及语境逻辑的把握能力，需结合前文的分点提示判断合适的衔接内容，注重对文章整体脉络的理解。
【难度系数】
0.7

When farmers tried to grow more food in the past，they would use farming methods that weren't always healthy for the environment. To solve this problem，1. They spent several years talking to farmers. They wanted to see what problems farmers were having and how these problems could be solved. 2. These special robots move around on farms and collect information about crops(庄稼). They can take pictures of plants，track(追踪)each plant's growth and measure(测量)its size.
...
A. But now，with these robots，they can.
B. This led to the creation of special robots.
C. some scientists carried out a research project.
D. more and more food needs to be grown in order to feed everyone.
E. ...
F. ...
G. ...

点拨：
1. 上文是“为了解决这个问题”，下文是“他们花了几年时间和农民交谈”。根据空前的逗号可知，要在 C 项和 D 项中做选择，C 项“一些科学家进行了一个研究项目”符合语境，且下文中的 They 指代 C 项中的 some scientists。故选 C。
2. 上文提到“他们想知道农民有什么问题，以及如何解决这些问题”，下文提到“这些特殊的机器人在农场上移动以收集庄稼的信息”，由此可推知，设空处与机器人的诞生有关。B 项“这导致了特殊机器人的诞生”符合语境。故选 B。

【解析】
1. 上文提到“为了解决这个问题”，下文是“他们花了几年时间和农民交谈”。根据空前的逗号，结合选项，C项“some scientists carried out a research project.”符合语境，且下文中的They指代C项中的some scientists，故选C。
2. 上文提到“他们想知道农民有什么问题，以及如何解决这些问题”，下文介绍了特殊机器人的功能，由此可推知设空处应引出特殊机器人的诞生，B项“This led to the creation of special robots.”符合语境，故选B。
【答案】
1. C；2. B
【知识点】
语境推理；代词指代；逻辑衔接
【点评】
本题考查根据上下文语境和逻辑关系选择合适的句子补全短文，解题时需结合上下文的指代关系、因果逻辑来分析选项，准确把握语境是解题关键。
【难度系数】
0.6