1.stock用作形容词的意思是“储备的”,转化为动词意思是“供应,贮存”。
2.stock可用作及物动词,也可用作不及物动词。用作及物动词时接名词或代词作宾语。
3.stock后接副词up表示“采办货物或用品”; 后接介词with表示“配备”。

stock up(v.+adv.)
采办货物或用品 obtain a supply of goods
▲stock up
People started to stock up when a shortage of food was reported.食品短缺报道后,人们开始贮备食品。
▲stock up on〔with〕 sth
Father has stock up on wine and food for the New Year party.父亲已为新年晚会准备好了酒和食物。
You had better stock up with sugar because they say there is going to be shortage.你最好购进一些食糖,因为他们说马上就要没有货了。
▲stock sth⇔up
◇ 用于be ～ed结构
All the toyshops are now well stocked up for Christmas.所有的玩具店现已备好了圣诞节的货物。

stock with(v.+prep.)
供应; 贮存 supply a shop〔a body〕 of water with goods/fish
▲stock sth with sth/v-ing
He stocked his shop with tinned goods.他为自己的商店贮备罐头食品。
The city council have suggested stocking the lake with fish to provide food and fun for the citizens.市政府建议在湖里养鱼供市民食用和娱乐。
◇ 用于be ～ed结构
Our camp is well stocked with everything we need for a short stay.我们的野营地备有我们短期居住所需要的一切东西。
His toolbox was always stocked with a quantity of cheap brass screws.他的工具箱里总是备存着大量的廉价黄铜螺丝钉。

用作及物动词
▲S+～+n./pron.
They've stocked their grain in the barn.他们在粮仓里贮存了粮食。
The library didn't stock zoology textbooks.这家图书馆没有动物学教科书。

1.表示“储备”时英国人常用stock up with; 而美国人常用stock up on。
2.stock还可用作形容词,作“常备的”“常用的,陈腐的”解。例如:
The weather is a stock subject of conversation.天气是聊天的习惯话题。
Toothpaste is stock merchandise in a drugstore.牙膏是杂货店里的常备商品。

［同义词］ n.  goods, share, supply v.  supply
［词源］＜古英语stocc(现货,股票,储存)

in〔out of〕 stock
(商店等中)有〔无〕现货的available〔not available〕 (in a shop, etc.)
The store had children's shoes in stock.这家商店童鞋有现货。
The blue skirts are out of stock.这种蓝衬衫已脱销。

on the stocks
在建造中,在准备中being constructed or prepared
Before he finished one novel, he had another on the stocks.他一本小说尚未完稿,已在进行另一本小说的写作了。

take stock (of)
▲take stock (of sb/sth)
1.盘点存货examine and make a list of all the goods
The shop takes stock every week on Friday mornings.这家商店每星期五早晨盘点存货。
2.检查,评估review, assess and form an opinion
It is time for taking stock and planning for the future.是作出评估和规划未来的时候了。
He took stock of the stranger.他仔细打量着那个陌生人。

Stocks of coal are running low.存储的煤越来越少了。
This store keeps a large stock of toys.这家商店备有大量玩具。
He bought a lot of government stock.他买了许多公债。
She invested most of her savings in stocks and shares.她把大部分存款投资在公债和股票上。
He descended from Jewish stock.他是犹太人的后裔。