题目

读经纬网示意图．完成下列内容。（1）读出A、B两点的经纬度。A____；B____（2）判断A、B两点的半球位置。从南、北半球看，A点位于____半球；从东、西半球看，A点位于____半球。（3）A点在B点的____方向。 答案：【答案】10°W，10°N 10°E，10°S 北 东 西北 【解析】由经线和纬线相互交织现成的网叫做经纬网。纬度，向北纬度数增大则为北纬，用N表示；向南纬度数增大则为南纬，用S表示；经度，向东经度数增大则为东经度，用E表示；向西经度数增大则为西经度，用W表示．南北半球分界线是赤道，以北为北半球短文改错。     Mobile phones are being more wide used. They're light in weight and easy to carry, offer fast andconvenient service for communication. The users use them for making phone call, sending short messages and Internet-surfing. In recently years, mobile phones have become popular to middle school students. Quite a few use it to keep in touch with their families and friends, what, of course, was of greatconvenience. However, I don't think it's good to do so. In spite of the advantages mentioned above, studentusers often waste a lot of time chat on the phone in their spare time. Some even cheat in exams. In addition, mobile phone bills spend their parents lots of money. ______________________________________________________________________________________