the father reached down, picked up the stone and removed it into sandbox.
Do you have ―stones‖ in your life that need to be removed? Are you discovering that you are too weak to lift them? There is ONE who is always ready to give us the strength we need. Isn‘t it funny how we try so hard to do things on our own?
71. The little boy found ______________ in the middle of the sandbox.
A. a small road B. a large stone C. a big house D. a large box
72. Finally, the boy cried because he was too______________ to remove the stone.
A. hard B. funny C. weak D. sad 73. Who removed the stone at last?
A. The little boy B. the boy‘s father
C. Both the boy and the father D. someone who passed by 74. What does the underlined word ―them‖ refer to (指代) in life?
A. stones B. jobs C. exams D. difficulties 75. What can we learn from this story?
A. We should learn to ask for help sometimes. B. We should never continue doing everything. C. We can do anything on our own during the life. D. Someone is always ready to give up the strength.
B
Have you ever seen a car without a driver? It sounds crazy， but these computer-driven
driver-less cars have appeared on the roads in Shenzhen. Companies like Google and Tesla have been designing and testing these cars， and the technology is there.
So how? The cars have sensors(感应器) all around which can find other cars and objects in the road. Road signs are read by cameras， and satellite navigation systems(卫星导航系统) are used so the car knows how to get where you want to go. All you have to do is type in the address! Finally, a central computer system takes in all the information that it receives from the sensors and cameras and works out when to speed up， stop and turn.
Sound like your idea of heaven? Sitting back， looking out of the windows and even watching a film or reading a book while \driving‘ would be possible with this new technology. You wouldn't have to worry about remembering directions to where you're going. In addition， computers would also drive more safely than people—they would obey the rules and have quicker action times when in dangerous situations.
However， there are many drawbacks of driver-less cars. Computers would have difficulties making ethical(道德的) decisions: if a child ran into the road， would the computer choose to hit the child or turn suddenly and potentially kill the car's passengers? Moreover， I personally find driving fun—I'd miss never driving a car myself. There would also be many other decisions to be
made—should children, or drunk people be allowed in a driver-less car by themselves? Or would there need to be a person with a driving license in the car at all times?
I'm not certain I'd want a driver-less car—but it's only a matter of time before they'll become more affordable and popular on our roads.
76. When using a driver-less car, you need only ________.
A. use satellite navigation systems B. read road signs carefully C. put the address into the computer D. take photos with cameras 77. From Paragraph 3 we know that driver-less cars ________.