区别就在于"shop"是动词而"shopping"是名字.
例句：A.Let's go shopping.(此句中shopping为shop的现在分词,用法同go skating/go golfing）
B.Let's do some shopping.(此句中shopping为名字的shopping,意为购物）。
shop
n. 商店；店铺
vt. 购物
vi. 购物；买东西
shopping
n. 购物，买东西
v. 购物（shop的ing形式）
搭配 go shopping
shopping
用作名词 (n.)
I am opposed to going shopping with others.
我反对与他人一起外出购物。
That new shopping centre is a real eyesore.
那个新的购物中心真是难看极了。
shop
用作名词 (n.)
1.The local dress shop is having a sale.
附近的时装店正在大拍卖。
2.The dresses in the shop are priced high.
这家商店的衣服定价很高。
3.That shop has a large connection.
那商店有一大批顾客。
4.I saw both of them at work in the shop.
我看见他们两人都在车间干活。
5.The foreman oversaw the workers in the shop.
这个工头在车间里监视工人。
用作动词 (v.)
1.Women in general like to shop for new clothes.
大多数妇女喜欢逛街买新衣服。
2.I usually go shopping on Sundays.
我通常星期天购物。
