3. 读短文，根据短文内容选择适当的答案。
Fish are good at swimming. They’re born swimmers. So, there is a saying “teach fish to swim”. It means trying to teach someone something they already (已经) know very well, or even better than you.
Let’s see how to use it. If Ben is trying to show a cook how to make a dish, you can say, “Ben, you’re trying (尝试) to teach fish to swim! Mr Chen is a cook.”
() (1) are born swimmers.
A. Fish
B. Ducks
C. Dogs
() (2) “Teach fish to swim” means .
A. trying to learn swimming from a fish
B. trying to teach someone something they already know very well
C. trying to teach someone something they don’t know
() (3) Mr Chen .
A. is teaching Ben how to make a dish
B. is good at cooking
C. likes eating fish very much
() (4) “Teach fish to swim” means in Chinese.
A. 如鱼得水
B. 鱼跃龙门
C. 班门弄斧

3. (1) A (2) B (3) B (4) C

【解析】
(1) 根据短文第一、二句“Fish are good at swimming. They’re born swimmers.”可知，鱼是天生的游泳者，故选A。
(2) 根据短文第一段最后一句“It means trying to teach someone something they already (已经) know very well, or even better than you.”可知，该短语的意思是试图教某人他们已经非常了解的东西，故选B。
(3) 根据短文第二段“Mr Chen is a cook.”可知，陈先生是厨师，擅长做饭，故选B。
(4) 根据短文对“Teach fish to swim”的释义，其对应的中文俗语是“班门弄斧”，故选C。
【答案】
(1) A (2) B (3) B (4) C
【知识点】
短语含义理解、细节信息提取、中英俗语对应
【点评】
本题围绕俗语“teach fish to swim”展开，考查学生对短文细节信息的提取能力和短语含义的理解能力，同时涉及中英俗语的对应，需要学生仔细研读文本内容。
【难度系数】
0.8