重点讲解：
1. there's no need (for sb.) to do sth.
没有必要；不必做某事；
eg. There's no need to call a doctor.
没有必要叫医生。
eg. There is no need to get into a stew; everything will be all right.
没有必要烦恼，一切都会好起来的。
2. bark at sb.
对某人大声嚷；吼叫；厉声叫喊；
eg. I didn't mean to bark at you...
我不是成心对你嚷嚷的。
eg. When you speak to people, don't bark at them.
当你和人说话时不要咆哮。
3. claim to be
自称为；
eg. A man claiming to be a journalist threatened to reveal details about her private life.
一个自称是记者的人威胁要公开有关她的私生活的细节。
eg. Many people claim to be experts, but only few invest thousands of hours of work to become one.
很多人宣称自己是专家，但只有仅少数的人真正投入了数千小时的努力。
4. appear to do sth.
好像；似乎；看起来；
eg. Under stress these people will appear to be superficial, over-eager and manipulative.
这些人在压力下会显得浅薄无知、操之过急，而且爱摆布人。
eg. You appear to have made a mistake.
似乎你弄错了。
5. fill out
填，填写（表格等）
eg. Now, will you please fill out these custom form for each package.
那么请您把每个包裹的报关表填写一下。
eg. Please fill out the form in block capitals.
请用正体大写字母填写表格。
6. lack of
缺乏；不足；没有；
eg. Despite his lack of experience, he got the job.
他虽然经验不足，但还是获得了这份工作。
eg. The charges were dropped for lack of evidence.
指控因证据不足而被撤销。