【用法】help作动词时，意为：①帮助，援助；②促进，促使；③给......夹菜（或斟饮料等）；④避免，阻止，抑制，忍住，控制住(多与can / could，can't / couldn't连用，常用结构为not more than one can help，意为"能少尽量少")。如：

If you are finding that difficult I could help you.

Foreign trade helps the development of industry.

Can I help you to more vegetables?

Jane couldn't help laughing when she saw it.

Jerry never does more work than he can help.

【考例】Try not to cough more than you can _____ since it may cause problems to your lungs. (2013新课标全国卷I)

A. check B. allow

C. stop D. help

【点拨】由"因为它（咳嗽）可能引起你肺部的问题"可知，你能不咳嗽就尽量"忍住（help）"不要咳嗽。check检查；allow允许；stop停止。

3. transparent

【用法】transparent是形容词，意为：①透明的，清澈的；②（过程、活动或组织）公开的；③易懂的；④（谎言或借口）易识破的。如：

The insect's wings are almost transparent.

Citizens are asking for a more transparent government.

I think we should try to make the instructions more transparent.

He made transparent excuses to avoid the topic of politics.