Language teaching involves three main disciplines. They are linguistics, psychology and（）.

判断题If the chosen topic for a conversation lesson is too general it will not excite the students, if it is too specific some students will be interested, and others not.（）

判断题Planned conversations usually degenerate into silence or involve only a small number of students.（）

判断题When the readers read to get the general picture, only the main points are what they are interested in, not the detail.（）

判断题Through reading the students not only learn new language, but also develop their reading skills.（）

判断题Texts are usually used in English classes for two main purposes: as a way of developing reading comprehension and as a way of learning new language.（）