2014届高考英语一轮复习单元阶段通关训练4_高考复习指南

2014届高考英语一轮复习单元阶段通关训练4

　　解析：选B。主旨大意题。根据全文内容来看，本文主要讲述要为母乳喂养的孩子补充维生素D。本文未提及母乳喂养的优缺点；仅是提到母乳中缺少维生素D；故A项错误；C、D两项意义均过于空乏，不符合原文内容。

　　You’re rushing to work and a man ahead of you collapses on the sidewalk.Do you stop to help? In a study of by-standers，it was found that some people avert their gaze and keep on walking rather than stop and get involved.

　　“There is a tendency to decide that no action is needed.”says a psychologist.“The first thoughts that pop into your mind often keep you from offering help.In order to take action，you have to work against them.” Here are some common thoughts that might prevent you from helping.

　　●Why should I be the one? I’m probably not the most competent (有能力的) person in this crowd.You might think someone older or with more medical knowledge should offer assistance.

　　●What if he doesn’t really need my help? The fear of embarrassment is powerful；no one wants to risk looking foolish in front of others.

　　●No one else looks concerned－this must not be a problem.We can follow the people around us，but most people tend to hold back their emotions in public.

　　“If you spot trouble and find yourself explaining inaction，force yourself to stop and evaluate the situation instead of walking on，” says the psychologist.“Then retry to involve other people；you don’t have to take on the entire responsibility of being helpful.Sometimes it’s just a matter of turning to the person next to you and saying，‘It looks like we should do something.’Or asking someone if an ambulance has been called and，if not，to call for one.Once you take action，most people will follow you.”