add up加起来 Add up all the money I own you.

add up to sth. 累计达到 The numbers add up to 100.

5. How many bananas do we need?　

How much sugar do we need?

(1) how many, 多少，针对可数名词提问；对不可数名词提问应用how much.

　-How many students are there in your class?　

　-Forty-two. Twenty boys and twenty-two girls.

　-How many bottles of water do you drink every day in summer? -Two.　

　-How much yogurt do we need? 　　-One cup.　

　-How much money do you have in your pocket? 　-Ten yuan.

【拓展】可数名词与不可数名词

名词是表示人,事物,地点或抽象概念的名称，有可数名词和不可数名词之分。

① 可数名词有单,复数之分,表示一个或多个，可以直接用数词来修饰。

　a book 一本书 two books 两本书

　② 不可数名词：不分单,复数；抽象名词, 物质名词和专有名词一般是不可数名词。

　sand 沙 sugar 糖

　不可数名词一般没有复数形式，但是可以用一些量词来表示不可数名词的数量。

　(1)表不定数量时，一般用much，(a)1ittle，a lot of／lots of，some，any等词修饰。

　much money, a little bread，a lot of ice cream，some juice

　(2)表确定数量时，一般用"数词+量词+of+不可数名词；变复数时可以把前面的量词变成复数。

　a bottle of milk，a glass of water，a can of beer，a piece of paper

　two bottles of milk，two pieces of paper，two glasses of water

(2) need v. 需要。做实义动词，可以直接带宾语，也可以和带to的不定式连用。

I need some help.

They didn't need to go.

　The bike needs to be repaired.

【拓展】need做情态动词。

need做情态动词表示"需要",主要用于否定及疑问句中，没有时态与人称的变化。

-Need I come? 要我来吗？

-Yes, you must. 是，你得来。

-No, you needn't. 不，你不必来。

6. First, mix together some bread pieces, onions, salt and pepper.

　mix v. 混合，掺和，搞混

　mix sth with sth 用...与...混合

mix up 搅匀；搅和；混淆；弄乱