根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项多余选项。（共5小题；每小题2分，共10分）

--James, can I have some black tea?

--Sure,    小题1:  

--Well, just a little, please.

--Two teaspoons?

--  小题2:  I have gained some weight these days.

(Minutes later.)

--How nice it is!

--  小题3:  

--Yes, please. Do you mind me smoking here?

--  小题4:  I don't want to have secondhand smoke. Would you like some cookies, instead?

Eating more and smoking less will do you good.

--  小题5:  

现场测定矿浆浓度的方法是（）法。