4(A)When does the answer go out of the sight?
A. When the next question appears.
B. When you press the button.
C. Not mentioned.
(听力原文) Today machines can play chess and do math problems. Machines canalso teach you lessons; they are teaching machines.
What do teaching machines look like? They are simple-looking. In most cases,they are just metal or plastic boxes. They have two windows and a few push buttons hereand there. You press a button and the first question will appear in oue of the windows.Then you write your answer on the paper in the other window. You press the buttonagain and you will get the correct answer. You can see the computer's answer and yourown answer at the same time. New press the button again to get your next question.When the second question appears, your answer to the first question goes out of sight.And you can write your answer on clean paper. 本书以教育部颁发的*新《英语课程标准》为纲、以各地主流教材为依据,同时又结合近年的英语考试试题内容编写。本书作者均为《英语周报》***的作者,他们以独到的见解和敏锐的洞察力,对考试命题特点及规律的准确把握具有很强的权威性、前瞻性和导向性。
与市面**行的传统听力辅导资料相比,本书具有很多独到之处。
特色一:解析**。对近几年中考听力题型做了详细的分析,并为考生提出了有效的解题技巧,��助于学生在做不同类型题目时有针对性地做题。
特色二:命题科学。本书所命制的二十套试题科学、巧妙,每一套试题在选材上争取饱含西方文化的内容。试题之间具有层次性与梯度性,能有效地培养学生掌握听的基本技能。
特色三:材料真实。选材为真实情景下的全真对话,且具有浓郁的时代气息。材料语言地道、题材广泛、自然真实,融知识性、趣味性于一体,实用性强,有助于学生熟悉英语会话中独特的英语现象。
特色四:语音纯正。所有听力材料均由英美专家朗读,语速相当或高于中考试题的语速,让学生在地道的英语语音环境中提高听力能力,而且也可以供学生模仿,纠正自己的语音、语调。