are countable nouns. And they can add "-s" .

T: How many...?(设计意图：复习上一单元"How many?并引导孩子们回答。")

(4)设计一个任务;Talk about your shopping.利用课件出示"cheese"""rice"meat",引入单词kilo.使生理解该单词意为"一公斤"。教说、练说该单词引入词组half a kilo。使生理解为"半公斤"。教说、练说该词组。

(5)利用课件出示"juice",来导入"bottle"，通过课件演示，知道"juice" 不可数，"bottle"可数名词。

（6）Show "chocolate" "eggs", to lead in "a lot of".

(设计意图：任务型教学是小学英语教学很重要的教学手段。在"任务前"阶段，教师通常向学生介绍需要学生完成的"任务"（目的、完成任务的程序、时间等)

Step3 Learn the text.

(1) Le's look at "What did Sam and Amy buy?"

First, listen and point, then answer three questions.

(2)Answer questions, and repeat, check the answers.

(3)Listen and try to act it out.

(4)Activity4.Listen and repeat.

Step4 Practice

1.Game:我要回家

Put the nouns to the right house. 活动目的：分清可数名词与不可数名词

活动准备：食物卡片