In conclusion, based on Krashen’s I

In conclusion, based on Krashen’s Input Hypothesis, in the second language classroom teaching, questioning may be regarded as the main and most reliable sources. Therefore, more and more linguists and language teachers have come to realize the facts that teachers should control their teaching time as much as they can and let students have more opportunities to speak in the classroom. This requires teachers to put forward appropriate questions to guide students to speak. With the understanding of the comprehensible input, teacher questioning is an indispensable element for language input.