[00:03.84]It is a book.

[00:07.29]What is that?

[00:11.26]It is a notebook.

[00:14.97]What are thses?

[00:18.42]They are books.

[00:23.48]What are those?

[00:26.78]They are notebooks.

[00:30.07](2)I am a student.

[00:33.10]You are a teacher.

[00:36.68]We are students.

[00:41.48]You are teachers.

[00:45.87]He is a farmer.

[00:51.07]She is doctor.

[00:55.04]They are farmers.

[01:00.24]They are doctors.

[01:03.95](3)Is he a farmer?

[01:08.21]Yes,he is.

[01:12.88]Is she a nurse?

[01:17.01]No,she isn’t.She is a doctor.

[01:22.63]Are you students?

[01:26.47]Yes,we are.

[01:29.76]Are they students?

[01:33.05]No,they aren’t.They are teachers.

[01:40.31]what

[01:41.89]什么

[01:43.47]book

[01:45.46]书

[01:47.44]notebook

[01:49.84]笔记本

[01:52.25]I

[01:54.10]我

[01:55.96]student

[01:58.77]学生

[02:01.57]you

[02:03.56]你，你们

[02:05.54]teacher

[02:07.74]教员

[02:09.93]he

[02:12.27]他

[02:14.61]she

[02:16.67]她

[02:18.74]farmer

[02:21.27]农民

[02:23.80]doctor

[02:26.06]医生

[02:28.32]nurse

[02:30.45]护士

[02:32.58]we

[02:35.05]我们