用所给单词的适当形式填空。
1. He (write)a letter to his friend tomorrow.
2. They (go)to the zoo this weekend.
3. She (be)going to do her homework after dinner.
4. We (not have)a picnic in the park next week.
5. he (ride) his bike to school next month?

1. will write/is going to write 2. will go/are
going / are going to go 3. is 4. won't have/
are not going to have 5. Will;ride/Is; going to
ride

【分析】这几道题是英语中一般将来时的动词适当形式填空，解题思路为：首先观察每个句子的时间状语（如tomorrow、this weekend等），判断时态为一般将来时；回忆一般将来时的两种常用结构：①will + 动词原形；②be going to + 动词原形；再结合主语的人称和数，确定be动词的正确形式，否定句需添加not，一般疑问句需将will或be动词提前，最终得出正确形式。
【解析】1. 时间状语tomorrow表将来，用一般将来时，结构为will+动词原形或be going to+动词原形，主语He是第三人称单数，be动词用is，故填will write/is going to write；2. 时间状语this weekend表将来，一般将来时，主语They是复数，对应be动词用are，故填will go/are going/are going to go；3. 结构为be going to do，主语She是第三人称单数，be动词用is，故填is；4. 时间状语next week表将来，否定式为will not（缩写won't）+动词原形或be not going to+动词原形，主语We是复数，be动词用are，故填won't have/are not going to have；5. 一般将来时的一般疑问句，将will或be动词提前，主语he是第三人称单数，be动词用is，故填Will; ride/Is; going to ride。
【答案】1. will write/is going to write 2. will go/are going/are going to go 3. is 4. won't have/are not going to have 5. Will;ride/Is; going to ride
【知识点】一般将来时，动词适当形式填空
【点评】本题考查一般将来时的核心用法，通过时间状语明确时态，结合主谓一致确定动词形式，是英语时态的基础题型，难度适中，适合巩固一般将来时的知识点。
【难度系数】0.6