[单项选择]Normally a well-mixed diet can supply the vitamins necessary for a healthy body.
A. 正常情况下如果饮食搭配合理，就可提供维持人体健康必需的各种维生索。
B. 健康人体内的维生素都是由一般的搭配合理的饮食提供的。
C. 一般的搭配合理的饮食都可保证对人体健康所需的各种维生素的供给。
D. 一般的搭配合理的饮食和充足的维生素供应是维护身体健康必需的。

[单项选择]Normally a well-mixed diet can supply the vitamins necessary for a healthy body.
A. 正常情况下如果饮食搭配合理，就可提维持人体健康必须的各种维生素。
B. 健康人体内的维生素都是由一般的搭配合理的饮食提供的
C. 一般的搭配合理的饮食都可保证对人体健康所需的各种维生素的供给。
D. 一般的搭配合理的饮食和充足的维生素供应是维护身体健康必需的

[填空题]It can be easier to change our diet a lot than to change it a little.

[单项选择]

M: Really We can get a table ! Normally, you need a reservation to get a table here.
F: We’re really lucky! Yeah! This restaurant looks really busy! Wow, our table is so beautiful. This restaurant is really nice!
M: Yeah, maybe it’s too nice. There aren’t any prices on the menus!

What do people usually do in order to get a table in this restaurant （　）
A. They need to book in advance.
B. They have to pay first.
C. They need to order it first.

[单项选择]
Vitamins, which come in many different types all of which are quite diverse in chemical configuration and function, can be any of several organic substances that are separated into water-soluble and fat-soluble groups. Originally defined as organic compounds obtainable in a normal diet and capable of maintaining life and promoting growth, vitamins are differrent from carbohydrates, fats, and proteins in function, as well as in the quantities in which organisms require them. So critical are vitamins to a body’s essential strength and health that if they are absent from the diet or not properly absorbed by an organism, a specific deficiency disease may develop.
The term "vitamin" originated from "vitamine", a word first used in the early 19th century to designate a group of compounds considered vital for life (though the term "accessory food factor" sometimes is used interchangeably to refer to these substances).
A. the symptoms of vitamin A deficiency
B. the results of hypervitaminosis A
C. the results of storing toxic materials in the liver
D. the symptoms of excessive consumption of vitamins