借助......：by means of... 无论如何：by all means；一点也不，决不(用于句首句子需倒装) ：by no means；by the way顺便问一下；on one' s way to...在去......的路上；in the way 挡住路

【练习】用means，way，method填空。

1). These vegetables can be cooked in different _______.

2). Only in this _______ can you find out the truth.

3). By this _______ I get in touch with him.

4). We express our thoughts by _______ of words.

5). ______ _______ _______ shall I lend him money!

6). The methods of _______ (teach) need _______ (improve).

2. percent / percentage

【解释】

percent 表示"百分之......"，相当于"％"，其前面往往是一个具体的数字。

percentage 表示"百分比；百分率"，前面不能是具体数字，只能被high，low等修饰。

【练习】用percent，percentage填空。

1). I am a hundred ________ in agreement with you.

2). This company only supply 30 ________ of what we need.

3). The numbers are small, in _________ terms, but significant.

4). There used to be a high _________ of babies that diet scarlet fever every year.

3. obvious / apparent/ evident / clear

【解释】

obvious意为"某东西具有显著特点，不需费力就可觉察到，常用于一目了然的事物"。

apparent意为"表面看起来很明显，而实际情况未必如此"。

evident意为"有证据作出合理判断，考虑到各种事实、条件后而显得明显"。

clear意为"不存在使人迷惑或使问题复杂化的因素"。

【练习】用obvious，apparent，evident，clear填空。

1). It was an ________ mistake for him to have gone alone.

2). The situation is ________ to everyone.

3). It was becoming increasingly _________ that he disliked me.

4). The applause made it _________ that the play was a hit.

4. hire / employ / rent

【解释】

hire是日常用语，指按工作量或时间雇用人或租借东西，有"花钱使用某物"和"把某物使用权出让给别人以收取费用"之意；多指临时租用某物。如：hire a boat，a car，a camera，a bicycle，an evening dress，a hall for a meeting等，指人时，有"雇用"、"受雇"两种含义。

employ较正式，多指商店或公司长期雇用人手；受雇人员较广，甚至包括社会地位较高

的职业人员，有"聘请"之义；也可以解释为"忙于，从事"常用于be employed in sth. / doing sth. 短语中。 注：要弄清 employ 几个名词的用法：employee (雇工，雇员)，employer (户主，东家)，employment (就业，雇用)。

rent一般指租借房屋、地产(租借出去)；也有"花钱使用某物"和"把某物使