Unit 2Isthis your pencil?(Thefirstperiod) Teachingaims:A. Learn to use the drills of this lesson and make full use of it in daily conversations.1.-Is this your pencil? -Yes, it is. Its my pencil.2.-Is that your backpack? -No, it isnt. Its his backpack.B. Learn the following words and phrases:Backpack; ruler; pencil sharpener; thank you; baseball; computer; key; notebook; ringC. Practise the conversations.Teaching methods:Discussion;A