6.两个青少年正沿着美丽的湖边悠闲地慢跑。
Two teenagers along the beautiful lake.
Step 4:完善成文
It's three o'clock on a sunny Sunday afternoon. The sun is shining brightly, making everything warm and comfortable. I am taking a walk happily in the park with my parents. There are many people in the park and they are doing different activities. Look! Some old people are dancing in the centre of the park. How happy they are! Some boys are playing football. A little girl is painting colourful pictures under the tree. A young woman is walking a cute dog along the path. Two teenagers are jogging slowly along the beautiful lake. Everyone is having a wonderful time. The whole park is full of laughter and joy, lively and beautiful.
佳作赏识
1.紧扣主题,场景完整
范文紧扣“周日下午公园内人们的活动”这一核心主题。开篇以“It's three o'clock on a sunny Sunday afternoon.”清晰交代时间与天气,再用“I am taking a walk happily in the park with my parents.”点明自身活动,

6. are jogging slowly

【分析】首先观察句子语境，描述的是正在发生的场景，需使用现在进行时；主语Two teenagers是复数，be动词需用are；结合范文中对应的准确表达，确定动词短语为jog slowly，其现在分词形式为jogging，据此可得出填空内容。
【解析】1. 判断时态：根据上下文描述的是周日下午正在进行的公园活动，确定使用现在进行时，结构为“am/is/are + 现在分词”；2. 主谓一致：主语Two teenagers是复数，be动词选用are；3. 匹配正确表达：结合范文给出的表述，“慢跑”的短语是jog slowly，现在分词为jogging，因此填空内容为are jogging slowly。
【答案】are jogging slowly
【知识点】现在进行时；动词短语
【点评】本题结合语境考查现在进行时的基础运用，需准确判断时态、主谓一致及动词形式，属于巩固基础的题型。
【难度系数】0.7