题目内容：

The latest fashion in kitchen is the food steamer． All the stores are selling them; everyone wants one． Steaming is one of the simplest and healthiest ways of cooking food．However, that cooking time is usually longer than with other methods． In case you’re thinking of buying a steamer, I've done a survey about the steamers available on the market to help you decide which will suit you best．

●Folding Steamer

The simplest and least expensive is the folding stainless-steel （不锈钢）version．

Advantages: This is a good, basic design which sits inside a variety of different shapes of pans with the water under it; a ring in the center allows for easy lifting and it's easy to clean．

Disadvantages: It only holds small dishes． Also, if you put too much water in the pan, it will boil up through the vegetables and they will be watery． If you put too little water in and let it get dry, you will burn the pan and get strange-smelling vegetables．

●Steaming Pan

This is a three-layered black Teflon-coated version with a lid and two double-handled steamers, which sits on the oven ring． The brand I bought is called Nutritious Living．

Advantages: This is an excellent steamer, lightweight, easy to clean, and of all the steamers I've tried, this cooks the fastest． Fish and chicken can be cooked on the bottom with rice or vegetables on the top． It's easier to store．

Disadvantages: Water can boil away until the pan is dry, but if you make sure you fill the pan up to the suggested level and do not overcook the food, this should not happen．You cannot see the food cooking from the top． It doesn't supply a dish for cooking rice．

For serious users of steamers, I recommend having one of each version． If you just want to try it, get the folding stainless-steel type．

1.Why did the author carry out the survey?

A．To inform people of different steamers

B．To run an advertisement for steamers

C．To find out a suitable steamer to buy

D．To learn how to cook with steamers

2.What can we learn about the folding steamer?

A．It comes in different kinds of shapes and sizes．

B．It is designed for large families．

C．It is able to clean itself．

D．It is easy to take out．

3.The Nutritious Liuing steamer       ．

A． is more difficult to store

B． provides a dish to cook rice with

C． cooks different foods at the same time

D． cooks fish and chicken faster than vegetables

4.According to the author, you should       ．

A． use steamers to save cooking time

B． buy a steamer with dishes supplied

C． do a survey before choosing a steamer

D． buy a folding steamer if you want to try