下图表示某雄性动物体内处于不同分裂状态或时期的细胞,请据图回答问题:
理论上这种动物可产生()种生殖细胞
参考答案:4
American boys and girls like watching TV. Some children spend six hours a day at school and four to six hours a day in front of the TV sets. Some children even watch TV for eight hours or more on Saturday.
Television(电视)is like books and films . A child can learn good things and bad things from it. Some TV programs help children to understand the news, the people and places from other countries. With TV, children do not have to go out to see films, they can hear interesting music or watch a game at home. But some programs are bad for children, so parents sometimes help them to find other interesting and useful things to do.
小题1:In America, some children spend eight hours or more _____ on Saturday .
A.studying
B.playing games
C.watching TV
D.helping their parents小题2: With TV, children can ________ at home.
A.play football
B.hold a sports meeting
C.see some films
D.have a swim小题3: What does the underlined word “programs” mean?
A.频道
B.节目
C.新闻
D.小品
2007年1月3日,中国文联组织的“送欢乐、下基层,促和谐、树新风”活动在河北唐山正式启动。刘兰芳、姜昆、阎维文、宋祖英等著名艺术家积极参与倾情奉献,他们有的推掉了商业演出、有的调整了工作日程、有的带病表演,给唐山人民送来了丰盛的文化大餐,受到了热烈欢迎。据此回答1—2题。
1、“送欢乐、下基层、促和谐、树新风”活动属于[ ]
A、物质文明建设
B、政治文明建设
C、精神文明建设
D、经济建设
2、对艺术家们的积极参与和倾情奉献理解正确的是 [ ]
①艺术家必须参加这一活动,否则人民就不欢迎
②艺术家自觉履行了自己的责任,是对自己负责、对艺术负责
③艺术家们是对社会负责,对人民负责
④履行责任是要付出代价的,这次参演的艺术家们不言代价与回报
A、①②③
B、②③④
C、①②④
D、①③④