D．They lack good reading materials.

　　解析：选A　细节理解题。由第二段的"there must be activity, busyness and speed.Reflection is out. We don't give students the time they need to read"，第三段的最后一句和最后一段可知，学校课程紧张，学生学习忙碌，甚至没有足够的时间思考、阅读、探索，即学生们处于一个快节奏的世界。

　　10．How can students benefit from slow teaching?

　　A．They needn't have a long teaching period.

　　B．They can bring an end to every discussion.

　　C．They have enough time to think and learn.

　　D．They needn't answer every question in class.

　　解析：选C　细节理解题。由最后一段的第一句和最后一句可知，通过慢教学，学生可以有足够的时间进行阅读、思考、探索和学习等。

　　11．What may be the best title for the text?

　　A．Should school curriculums be changed?

　　B．It's time for a slow teaching revolution

　　C．The way we read should be changed

　　D．Is a speed­driven world out of date?

　　解析：选B　标题归纳题。本文主要表达了作者的一种主张，即slow teaching：减慢教学速度，给学生充分阅读、思考和探索的时间。

　　D

　　Stephen Hawking Warns Humans

　　Must Leave Earth Soon

　　Professor Stephen Hawking recently came out with a serious warning for people. While at the Starmus Festival, a festival in Trondheim, Norway, celebrating science and the arts, Hawking warned people that the human race is in serious danger.

　　Hawking criticized President Donald Trump for denying climate change. Then the physicist warned the audience, "I am not denying the importance of fighting climate change and global warming, unlike Donald Trump, who may just have taken the most serious and wrong decision on climate change this world has seen."

　　Hawking proposed that the leading countries should send astronauts to the Moon before 2020 to restart a movement of more exploration in space. The BBC reported that Hawking suggested that we "build a lunar base in 30 years' time and send people to Mars by 2025"．

According to the BBC, Professor Hawking said, "Spreading out into space will completely change the future of humanity." He continued, "I hope it would unite competitive nations in a single goal to