《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—2 with their meanings a—b.
1. advanced ______b
a. something that makes a vehicle go slower or stop
2. brake ______a
b. modern and developed to a high level
B. Choose the best answer.
3. Compared to the CR400,the average speed of the CR450 increased by ______. (A)
A. 50 km/h
B. 100 km/h
C. 350 km/h
D. 450 km/h
4. According to Zhao Hongwei,what is "the key" to CR450? (B)
A. Increasing the train's speed.
B. Making it brake accurately and steadily.
C. Having shorter braking distance.
D. Starting to brake in a shorter time.

答案： 1.b 2.a 3.A 4.B