4.在集体的学科、各种语言前不用冠词。

　　Can you speak English? It’s difficult to learn Physics well.

　　5.在家庭、单位、某一组织中处于独一无二的地位或职位时，一般不用冠词。

　　Mr. Smith, head of the group, will plan for the whole trip.

　　I usually help my Dad on the farm on Sundays.

　　6.名词前如果出现this, that, this, my, Jane’s, some, any等限定词时，其前不能再加冠词。

　　This is my address. His camera is like mine.

　　7.某些固定词组不用冠词。

　　by air 乘飞机 on foot 步行 at night 晚上

　　after school 放学后 at home 在家 go to class 上课

　　in fact 事实上 from morning till night 从早到晚

　　练习：

　　1. Tom Hanks is American actor.

　　A. a B. an C. the D. 不填

　　2. –Do you enjoy your stay in Hangzhou?

　　--Yes. I’ve had wonderful time.

　　A. / B. a C. the D. an

　　3. --Ellen, you look so happy.

　　--Well, I’ve got A in my history test.

　　A. a B. an C. the D. /

　　4. Millie has e-dog and its name is Hobo.

　　A. a B. an C. the D. 不填

　　5. ---What’s this in English? ---It’s ruler.

　　A. a B. the C. 不填

　　6. We’re going to have exam tomorrow.

　　A. a B. an C. the D. /

　　7. There is apple tree in my garden. It’s over ten years old.