1．Some scientists believe that robots will be able to talk to people in the future．But James White thinks it will be difficult for a robot to do so．However，they agree it may take hundreds of years．They now （65）are trying （try） to make robots look like people and （66）do （do ）the same things as us．There are already robots （67）working （work） in factories．They do simple jobs over and over again．They will never get bored．
4． In the United States，headmasters and teachers discipline（惩戒） students in several ways．The teacher often writes or calls the student's parents．Sometimes students have to stay at （73）school for an extra hour．If a student behaves （74）badly，the headmaster can suspend（勒令…休学） the student．The student cannot come to school for one，two，or three days．Sometimes，when the headmaster suspends some students，they are （75）happy．"A three-dayvacation!"they thought． Mr Lazares，a headmaster，didn't like to suspend students．When the boy who was not behaving well in class was sent to his （76）office，Mr．Lazares telephoned the boy's parents．"If you come to school with your son，I won't stop him having classes，"he said．The boy's father came to school and went with his son to every （77）class．Other students stared at the boy and his father．The boy was embarrassed．After that，he behaved better．He didn't want his father to come to school （78）again Other students behaved better，too．They thought，"I don't want my （79）parents to come to school!" That year，about 60 parents came to school with children who didn't behave well．The next year，（80）only a few parents had to come to school．The students were behaving better．
