23．_________ is the main meal in a day．
A． Breakfast
B． Supper
C． Lunch
D． Vegetables and wine
第1题：
午饭我喜欢吃汉堡包．
I like hamburgers_________ lunch．
第2题：
Where are you used to()vegetables?
A. buy
B. bought
C. buying
答案：C
解析：本题的答案要点是 ： be used to do / be used to doing 的运用。
A选项： be used to do【are used to buy】 是被动式，是指被用来做什么。
本题目中如果选择 buy Where are you used to buy vegetables?
这句话的意思是“你被用作去哪买菜“
B选项：bought 是buy 的过去式，本句不能用过去式。
C选项：be used to doing【are used to buying】 是指习惯做某事。
1、doing 作为名词，意思是发生的事，所做的事
2、doing 作为动词，意思是做；干；【也就是本题中的buying】是do的现在分词
3、doing 作为动名词。用法比较复杂。分下列几种：
【1】作为主语。谓语用单数。It代替动名词作主语。一般用于此结构It's no good/use doing
【2】作为宾语。有些动词只能接动名词作为宾语，如： admit，advise，consider，stick to， be used to，object to等等,这里部分举例。
【3】作状语。现在分词可以在句中作时间、原因、伴随、条件、结果等状语。
【4】作定语。表示用途的时候一般做定语。
【5】作表语。和主语调换位置了位置的动名词在句中的成分作为表语。
【6】作宾语补足语。有时会做 带有复合宾语的动词 的宾语补足语。如：see, watch, hear,observe, feel, find, have, keep等等
本题中buying作为动名词，作介词 are used to 的宾语。 组合成are used to buying， 意思是习惯买东西
本题目中选择 buying Where are you used to buying vegetables
这句话的意思是“你习惯去哪里买蔬菜”.
和本题相关的知识点都已经讲清楚。本题主要涉及到的知识点就是 be used to dong.
第3题：
2． My mother likes eggs and salad _________ breakfast．
A．at
B．for
C．to
D．of
第4题：
43． They have rice， vegetables and meat_______ lunch．
A． with
B． and
C． for
D． on
第5题：
David likes fish( )breakfast.
A. for
B. at
C. in
第6题：
A、What/on
B、What/for
C、Where/in
D、Who/for
第7题：
I feel tired already. I may need a ______ very soon.
A: rest
B: hand
C: path
D: meal
第8题：
A
Americans（美国人） eat three meals a day． They usually have eggs， bread， fruits，milk and coffee for breakfast in the morning． Lunch is not the dinner for Americans．They eat hamburgers， French fries， sandwiches or fruits in the workplace(工作场所)．
Students take sandwiches， fruits or hamburgers to school for lunch． Supper， the dinner， is the main(主要的) meal of the day． They usually eat supper at home． Mother cooks the supper： soup， salad， fish， chicken， vegetables and wine(酒)． After that，
they have some dessert， ice cream， fruits and some coffee or tea．
( )21． Americans have three meals a day． They are_________
A． breakfast，lunch and dinner
B． lunch，supper and dinner
C． breakfast，supper and dinner
D． breakfast，dinner，supper
第9题：
Susan told me she _____lunch, so she was very hungry.
A、has had
B、hasn' t have
C、have had
D、hadn' t had
第10题：
After each container has been stuffed，responsible personnel will ensure that the doors have been securely closed and are watertight and a ______ has been placed on the container．
A.real
B.deal
C.seal
D.meal