答案　B

解析　词义猜测题。根据画线词所在句后面的比喻可知，婴儿不能照顾自己，只能依靠他人。故选B。

3.Why do human babies pay attention to their parents' signals?

A.Because they hope to get more from their parents.

B.Because they want to convey messages to their parents.

C.Because they need to learn from their parents how to communicate.

D.Because they are social and interested in talking with their parents.

答案　D

解析　推理判断题。根据第三段中的"Human babies are also highly social，and are interested in engaging in a dialogue with their caregivers."可知，人类的婴儿注意家长们的信号是因为他们具有很高的社会性，对参与与照看者的对话感兴趣。故选D。

4.What is the best title of the text?

A.Cry or Don't Cry?

B.Why Do Babies Cry?

C.How to Express Babies' Feelings?

D.Are Human Babies Similar to Chicks?

答案　B

解析　标题归纳题。通读全文可知，本文主要介绍了婴儿为什么会哭及哭声所传达的各种信息，所以"婴儿为什么会哭？"作本文标题最佳。故选B。

(2017·安徽马鞍山二中高二检测)

　　Tears ran down from my eyes as I saw the essay my high school English teacher had just handed back. A big "F" was written on top. I was hopeless. I was stupid！My face burned with shame when my classmates called me stupid.

　　"I'm the only one who doesn't know my ABCs！"I sobbed to Mum.

　　"I'll help，"she promised.

　　Every day I sat with her，but to me，cat looked like "cta" and "red" was reb. Frustrated，I would return to my bedroom and draw，filling the paper with houses，restaurants and offices.

　　"When I grow up，I want my own store，"I told Mum，pointing to my drawings.

　　"That's great！"she said，"But first you have to learn to read."

　　Later，I was diagnosed with dyslexia(失读症).So Mum took me to a learning centre，where I was given reading exercises. But I still struggled. Finally，I graduated，but I was afraid of my reading skills.

　　"I'll never get a job！"I cried to Mum later again.

"Don't focus on what you can't do，"she comforted. "Concentrate on what you can."