练习册

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    1.3　 SPEAKING是一个任务型教学活动。采访新疆达瓦孜艺术的第六代传人---Adili 阿迪力。练习计量单位名称与数字的用法。

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    1.2 　LISTENING是对人和动物的高度、体重和速度的比较和描述。

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    1.1　 WARMING UP 通过一些有趣的吉尼斯世界纪录测试题，让同学们了解计量单位名称与数字的用法，激发学生对此书的兴趣。

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    功　 能　 句　 式
    		 1. Talk about records, adventures and hobbies
    2. Practise measuring and comparing 　
    Typical measurements (m=meters　 cm=centimeters　 h=hours) Height of people (When referring to people, “tall” is used, not “high”, and measurements are given in feet and inches (but not yards) or meters and centimeters. She is about 5ft 6 in tall. The world’s tallest man is 2.55m. Speed A speed limit of 30 mph Sound travels 186,300 miles in a second. Measurement of Temperature The normal temperature of the human body is 37°C. The lowest temperature ever recorded on earth is-89.2°C. Crossed the Three Gorge on a high wire, 646 meters long, 402 meters high, time 13 minutes 48 seconds. Walked across Mt Heng, 1,399 meters long, 436 meters high, time 52 minutes 13 second At Tiankeng, walked 687 meters, about 662 meters above the ground
    词 汇
    		 1. 四会词汇 beard, voyager, tight, tightrope, edition, moustache, brewery, conclude, hire, length, athletic, fade, account, attempt, suitable, inspect, confirm, certificate, gradual, blank, enthusiastic, bid, decade, committee, fascinate, burst, underline, globe, bush, skilful, administration, permission, schoolmate, grandparent, recently, familiar, helmet, truly, delight, delighted, energetic, cautious, outgoing, register
    2. 认读词汇 cheetah, sailfish, gorge, Urumqi, feat, hectare, Lance Armstrong, Juan Antonio Samarranch, spaceman, ramp, skateboarder, skateboard, capture, factor, teenage, skim
    3. 词组 set down, in a row, in the first place, apply for, burst into sth, center on/ upon, concentrate on
    4．重点词汇 set down, attempt, suitable, apply for, inspect, confirm, enthusiastic, bid, fascinate, burst into sth. underline, center on/ upon, concentrate on, delight, delighted, cautious, outgoing, register
    语法
    		 Review the Subject
    重　 点 句 子
    		 1． Instead, the editors of the book set down the records and keep track of them in other ways.
    2． Impressive as the record is, it fades next to the story of Armstrong’s struggle against disease.
    3． These new sports are called “extreme sports” and all center on the “X-factors”--- the pure joy of doing something that you did not think you could do and overcoming your fears.

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    技能目标Goals

    ▲ Talk about records, adventures and hobbies

    ▲ Practise measuring and comparing

    ▲ Review the subject

    ▲ Fill in a form

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    21、(文)方程的两根x1和x2满足，且。

    (1)求a的范围；

    (2)证明。

    (理)(b、c为常数)，方程的两个实数根为x1，x2且满足。

    (1)求证；

    (2)设，比较与的大小。

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    20、设P、Q是函数图象上任意不同的两点。

    　　 (1)求a、b的值；

    　　 (2)求直线PQ的斜率的取值范围。

    (3)若，求函数图象上一点M到直线，直线距离之比的最大值。

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    19、某工厂去年产品的年产量为100万只，每只产品的销售价为10元，今年工厂每次投入100万元(科持成本)，并计划以后每年比上一年多投入100万元(科技成本)，预计产量年递增10万只，每n次投入后，每只产品的固定成本为元(的常数，元)，若产品销售价保持不变，第n次投入后的年利润为万元，(利润＝收入－科技成本--固定成本)

    　　 则从今年算起第几年利润最高，且为多少万元？

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