10057英语教学论判断题每日一练(2018.11.23)

判断题
Consonants vary depending on where and how the air stream gets through, the place and movement of the tongue, and also whether the voice is used or not.（）
答案：正确
判断题
The natural order hypothesis is presumed by Krashen to be the result of the learned system, operating free of conscious grammar.（）
答案：错误
判断题
One function of a language can only be expressed by one structure.（）
答案：错误
判断题
Pitch is produced by frequency of vibration of the vocal cords. The higher the frequency, the higher the pitch.（）
答案：正确
判断题
Learning is more effective when the learners are actively involved in the learning process.（）
答案：正确