51. 某英文報(bào)社正在舉行題為“fight against haze（霧霾）”的征文活 動(dòng)。請(qǐng)你就此題目寫(xiě)一篇英文短文應(yīng)征，內(nèi)容包括：?霧霾會(huì)造成哪些危害 ?我們可以采取哪些對(duì)措施

14、 Motorcyclists usually wear dark colors because_________

• A、A. they want to be respectable 

• B、B. they want to be impressive

• C、C.the colors look different

• D、D. the colors suit their sport

Business English Helps

    English plays an important role in the workplace. When it is used in the correct and proper 31,it can help to promote a career or a business. Some may 32 or want to study business English 33 they start their careers. Those who are already working have the 34 to see what they can and cannot do 35 in English in their current job.

Business English provides you with valuable skills needed for your work. For example, you will learn 36 to negotiate. Being able to deal with a 37 and knowing how to bargain and 38 an agreement can make a 39

difference to the outcome.

    Business English learning encourages professional and efficient communication, and promotes service to customers and business partners, 40 is a great advantage for any business.

A. big     E. reach    I. way

B. need     F. which    J. how

C. what     G conflict   K. small

D. before    H. effectively L. opportunity