《2025年教与学课程同步讲练九年级英语全一册外研版》

A. Match the words 1—3 with their meanings a—c.
1. stage ______b
2. occur ______a
3. particularly ______c
a. to happen
b. a period or state that sth. /sb. passes through while making progress
c. especially; more than usual or more than others
B. Choose the best answer.
4. How many stages does each sleep cycle have? ( B )
A. Three.
B. Four.
C. Five.
D. Six.
5. What is likely to happen to you during the second stage of a sleep cycle? ( B )
A. Your muscles become relaxed.
B. Your temperature goes down.
C. You sleep deeply with a high heart rate.
D. You might dream.

答案： 1.b 2.a 3.c 4.B 5.B