在高一阶段的英语学习中，语法填空题是一个非常重要的练习形式，它能够帮助学生巩固所学语法知识，并提高语言运用能力。下面是一道典型的高一英语语法填空题目及其答案解析，供同学们参考。

原题：

阅读下面短文，在空白处填入一个适当的词或使用括号内单词的正确形式填空。

It was a sunny morning, and Tom went to the park with his friend, Mike. They decided to play football together. While they were playing, a little girl came up to them and asked if she could join their game. Tom and Mike agreed happily because they thought it would be fun to have one more person on the team. The little girl thanked them and joined in. After some time, she scored a goal by herself, which made everyone cheer. Tom and Mike felt proud of her and encouraged her to keep trying. Later, when they finished playing, the little girl gave each of them a big hug and said goodbye.

1. It was a ________ (sun) morning.

2. Tom went to the park with his __________ (friend).

3. They decided to play ___________ (football).

4. A little girl came up to them and asked if she could join their __________ (game).

5. Tom and Mike agreed happily because they thought it would be fun to have one more person on the __________ (team).

6. The little girl thanked them and joined in. After some time, she scored a goal by herself, which made everyone __________ (cheer).

7. Tom and Mike felt proud of her and encouraged her to keep __________ (try).

8. Later, when they finished playing, the little girl gave each of them a big hug and said goodbye.

答案解析：

1. sunny - 形容词修饰名词“morning”，表示“晴朗的早晨”。

2. friend - 根据句子结构，“with his friend”表明是单数形式。

3. football - 名词作宾语，直接填写即可。

4. game - 根据句意，“their game”指他们的比赛。

5. team - 根据上下文，“on the team”表示在队伍里。

6. cheer - make sb. do sth. 结构中，动词原形直接跟在make后面。

7. trying - encourage sb. to do sth. 结构中，to后接动词原形，此处为keep doing sth. 的用法。

8. said - 动词时态与整篇文章一致，用一般过去式。

通过这样的练习，同学们可以更好地掌握语法知识点，并提升解题技巧。希望这些题目能对大家有所帮助！如果还有其他问题，欢迎继续交流哦～