be动词用法口诀：单数is,复数are,I是am,you是are,is用作她、他、它.用be动词的正确形式填空.1、what_______it?―It____a map.2、_______that your jacket?―Yes,it_____.3、________you jenny?―No,I_____not.I_______grace.4、__

be动词用法口诀：单数is,复数are,I是am,you是are,is用作她、他、它.用be动词的正确形式填空.
1、what_______it?―It____a map.
2、_______that your jacket?―Yes,it_____.
3、________you jenny?―No,I_____not.I_______grace.
4、____she his friend?―No,she_____his sister.

1. is is
2. is is
3. Are am am
4. Is is

1. is is
2. is is
3. Are am am
4. Is is

1.is is 2. is is 3.Are am 4.is is

1. is; is (主语为it, 体现三单）
2. Is; (主语为that，体现三单）; is (主语为it, 体现三单）
3. Are (与you连用）；am (与I 连用）；am (与I连用）
4. Is (主语为she, 体现三单）； is (主语为she, 体现三单）