C．there will be no need for human workers in mines

　　D．robots in mines will cost a lot

　　8．What can guide the robots in smoky environments?

　　A．The lasers.

　　B．Sonar and radar guidance systems.

　　C．Command guidance systems.

　　D．Image matching guidance systems.

　　二、任务型读写

　　阅读下面短文，根据所读内容在表格中的空白处填入恰当的单词。注意：每个空格只填一个单词。

　　What do you usually use your cellphone for？Calling friends or sending them text messages?

　　As technology develops，nowadays cellphones can do much more than that.They have become an all-in-one cellphone.

　　A typical example is Apple’s phone.The touch screen cellphone plays music，connects to the Web，sends e-mails and takes photos.More than 1 million Apple’s phones have been sold since it was sold in June.

　　“Today’s young people enjoy using all kinds of digital functions，such as those of a music player，a camera and even a computer.An all-in-one cellphone is easy to carry.That is the goal of developing a technology to make our lives more convenient，simple and relaxed，”said Professor Ding Shouqian at Nankai University.

　　However，the all-in-one cellphones come with some problems.Users have complained that they are too complicated to use and that their battery life is too short.Cellphone producers say that they are working hard to make their phones even better.

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