1.Everyone has his inherent ability ,________________ (只是很容易被习惯所掩盖).

 

2.The importance of traffic safety , _________________ (无论如何强调都不为过).

 

3.In my opinion , ______________ (打电动玩具既浪费时间也有害健康).

 

4.There is no doubt that ______________ (近视是一个很严重的问题)among the youth of our country.

 

5.According to my personal experience , ___________________ (微笑已带给我许多好处).

 

答案解析：

 

1. which is easily concealed by habits

 

解析：每个人都有与生俱来的能力，只是很容易被习惯所掩盖。本题的难点在于对动词"掩盖"的选择。这里的"掩盖"是抽象含义，并不是像 cover那样能找到真实的掩盖物，所以应该选择conceal，常用搭配由：conceal...from。另外，这句话是一个非限制性定语从句。句子需填补内容是对 ability的补充说明，"能力"是中心词。因此，要用which引导这个非限制性定语从句。

 

2. can’t be overemphasized / can’t be emphasized too much

 

解析：本句考查的是"再......也不为过的"的说法。英语句型是：cannot + do sth. + too much 或 cannot over-do，如：He is so excellent that we cannot praise him too much.(他是这样的优秀，我们怎样称赞他都不过分。)cannot是否定，与too much 和 over-V. 结构连用时强调肯定，表示"怎么......也不为过"。

 

3. playing video games not only takes much time but also does harm to health

 

解析：句子需填补部分的主语是"打电动玩具"，虽然"打"是动词，但根据全句结构我们需要将play处理成动名词形式充当主语。此外，考察"不仅......还"的句型。"浪费时间"除了答案表达之外也可以用waste time 。

 

4. near-sightedness is a serious problem

 

解析：There is no doubt that后接从句，从句里应有完整的主谓宾结构。如：There is no doubt that the thief jumped into the room from the balcony in the second floor.(毫无疑问，小偷是从二楼的阳台跳进来的。) "近视"还可以说成myopia 或 short sight 。

 

5. smile has done me a lot of good

 

解析：本题考察"带给某人很多好处"的表达。我们知道"对某人有好处"可以说成do good to sb. 或do sb. good，依此类推，"给我带来很多好处"就是：do a lot of good to me或do me a lot of good 。