I'll be home by 6 PM. (我6点前会到家。)
When will he be home from work? (他什么时候下班回家？)
I'm glad to be home. (我很高兴回家了。)
Make sure to be home before midnight. (务必在午夜前回家。)
（2）be at home
I'd rather be at home than go to that party. (我宁愿待在家也不想去那个派对。)
He's been at home all day, feeling under the weather. (他一整天都在家，身体不舒服。)
You should be at home studying for your exam. (你应该在家复习考试。)
I prefer to stay at home on weekends and read a book. （我更喜欢周末待在家看书。）
She's a stay-at-home mom. （她是一个全职妈妈。）
Let's stay at home tonight and order pizza. （我们今晚待在家叫披萨吃吧。）
I'm going to stay at home and watch movies this weekend. (这个周末我要待在家看电影。)
4.1）be at home with: 对...熟悉，对...自在，精通，擅长
He's not really at home with new technology. (他对新科技不太熟悉。)
I'm not at home with the idea of traveling alone. （我对独自旅行的想法不太适应。）
4.2）make oneself at home: 请随便，就当在自己家一样