单选题
When you speak on the telephone, you cannot use your facial (面部的) expression, eye contact and gestures to help communicate your message. Your voice must do the job.
A good voice is pleasant to listen to because it communicates a positive message. Keep in mind the following qualities of a good voice.
Speak in a voice neither too loud nor too soft. Speak louder when giving important information.
Speak slowly enough so that the listener has a chance to understand your message without your having to repeat it. Keep in mind that as you speak the other person may be taking notes.
Pronunciation(发音) is the correct way to say a word. To avoid mispronouncing (读错音) words, you may wish to check the pronunciation of unfamiliar words in the dictionary before you use them.
People with an accent(口音) unlike yours may not understand your pronunciation of some words. You also may not understand the pronunciation of some of their words. In these cases, careful pronunciation is very important for effective communication. You may need to repeat or spell words that are unusual or easy to he misunderstood.
单选题
When speaking on the phone, the essential factor for successful communication is your ______.
【正确答案】
A
【答案解析】[解析] 由题干中的When speaking on the phone定位到文章第一段。A项是“声音”，B项是“手势”，C项是“目光接触”，D项是“面部表情”。根据第一段内容：Your voice must do the job，此处do the job即前面提到的help communicate your message。因此，A．voice是答案。
单选题
To give important information, a person speaking on the phone should ______.
【正确答案】
D
【答案解析】[解析] 由题干中的To give important information定位到文章第三段。此题针对第三段中内容：Speak louder when giving important information。A项是“保持一种愉快的方式”，B项是“使用熟悉的词语”，C项是“降低声音”，D项是“说话大声点”。由此可见，D．speak louder是答案。
单选题
The speaker is advised to speak slowly in order to help the listener to ______.
【正确答案】
D
【答案解析】[解析] 由题干中的speak slowly定位到文章第四段。A项是“记住一些词语”，B项是“重复信息”，C项是“核对信息”，D项是“记一些笔记”。第四段是讲说话人要说得慢些，好让听话人听懂，并提到：as you speak the other person may be taking notes(你说话时，另一个人可能在做笔记)。由此可见，D．take some notes是答案。
单选题
To avoid mispronouncing unfamiliar words, you are advised to ______.
【正确答案】
A
【答案解析】[解析] 由题干中的To avoid mispronouncing unfamiliar words定位到文章第五段第二句。A项是“查词典”，B项是“大声读”，C项是“用其他词代替”，D项是“请别人帮助”。根据文章第五段内容check the pronunciation of unfamiliar words in the dictionary before you use them，答案是A．check them in a dictionary。
单选题
Speakers sometimes need to spell some words to help listeners to understand ______.
【正确答案】
B
【答案解析】[解析] 此题针对这篇文章的最后一句话You may need to repeat or spell words that are unusual or easy to be misunderstand(你可能需要重复或拼读不常用的或容易误解的单词)。很明显，答案是B．unusual words。