4．to　句意：......尤其当谈到孩子的时候。when it comes to sb./sth.为固定搭配，意为"当谈到......时"，故填to。

　　5．because　句意：那是因为吃早餐的青少年在学校有表现更好的倾向。根据句意可知应该填because。

　　6．to keep　make it harder to do sth.中，it为形式宾语，意为"使做某事更困难"，故填to keep。

　　7．Without　句意：如果不吃早餐，孩子们很难满足日常的营养需要。根据语境可知，此处表示"如果不吃早餐"应用"without＋宾语"结构，在此处作状语，表条件。

　　8．daily　设空处修饰名词，应用形容词，故填daily。

　　9．probably　句意：你早上时间可能很急。设空处修饰形容词pressed，应用副词，故填probably。

　　10．are　句意：......你的孩子也是这样。"so＋be动词/助动词/情态动词＋主语"表示前面所说的情况也适用于另一个人或物，与前面的肯定句呼应，意为"......也是这样"，是倒装句，谓语动词应与后面的主语一致，故填are。

　　【知识拓展】　如果前面的句子是否定句，表示前面的情况也不适用于另一人或物，则用"neither/nor＋be动词/助动词/情态动词＋主语"。

　　Ⅲ.短文改错

　　Recently a survey has been done to find out the reasons of obesity among high school students. In the survey, many students were asking to complete a questionnaire. The questionnaire is about what they think lead to their being overweight. Thirty percent of the students believe that they are too fat because they are lack in physical exercise. An equal number of students say the reason is probably that they are supplied with too much fat and rich diet, which makes them what they have now. Twenty­five percent of the students interview claim that it is the family genes that are blame.However, the students who don't realize the dangerous of obesity only make up of fifteen percent.

　　答案：

Recently a survey has been done to find out the reasons o obesity among high school students. In the survey, many students were askin to complete a questionnaire. The questionnaire is about what they think lea to their being overweight. Thirty percent of the students believe that they are too fat because they are lac in physical exercise. An equal number of students say the reason is probably that they are supplied with too much fa and rich diet, which makes them what they hav now. Twenty­five percent of the students intervie claim that it is the family genes that are blame.However, the students who don't realize the dangerou of obesity only make up of\ fifteen percent.