step by step 第四册 lesson 136

Lesson 136

   Part Ⅰ Warming-up Exercises
  
   Instruction-following: Calculator Operating controls

                  Key    Function
  1. on■ off  ______  _________
  2. 0 - 9     ______  _________
  3. + -  ×÷ ______  _________
  4. =         ______  _________
  5. C         ______  _________
  6. CF        ______  _________
  7. %         ______  _________
  8. RM        ______  _________
                    Score: _____

    Part Ⅱ   What Are The Uses Of The Computer?

      Vocabulary

   1. layman
   2. exaggerated
   3. clerical
   4. payroll
   5. taxcode
   6. slip
   7. Boadicea
 
               Notes

     The first electronic digital computer was completed in 1946 at the
University of Pennsylvania. The first-generation computers were
supplanted¹ by the transistorized computers of the late 50s and early
60s. The second-generation machines that could perform a million
operations per second were replaced by the third-generation
integrated-circuit machines of the mid-60s and 70s. The 80s has been
characterized by the development of the microprocessors² and the
evolution of increasingly smaller but powerful minicomputers,
microcomputers³, and personal computers.

        Student Evaluation

  My general Impression Content:
   ____ helpful _____ adequate
   ____ inadequate
  Level Of Difficulty:
   ____ easy ____ fair
   ____ difficult
   My Major Problems
   ____ understanding meanings
   ____ selecting major points
   ____ organizing facts
   ____ retaining concepts
   My Comprehension Score
   __________________________

Exercises:

      Outline
Ⅰ. Introducing Topic for discussion
    __________________________
    __________________________

Ⅱ. __________________________
    A. _______________________
       Good for ______________
       e.g. 1. _______________
            2. _______________
    B. _______________________
       Successful use by _____
       e.g. 1. _______________
            2. _______________
    C. _______________________
       e.g. 1. Predicting ____________
              (working out ___________)
            2. Predicting ____________
               (Spotting _____________)

   Part Ⅲ   The Solar System

      Vocabulary

   1. diameter
   2. astronomer
   3. dwarf
   4. luminous
   5. contemptuous
   6. celestial
   7. searchlight
   8. glowworm
   9. cosmically
   10. gaseous
   11. thermonuclear
   12. Saturn
   13. Uranus
   14. Neptune
   15. Pluto
   16. Eurasian

               Notes
    The solar system includes 9 major planets and their 32 satellites.
Besides, it has more than 50,000 minor⁴ planets called asteroids⁵, a vast
number of comets, and countless⁶ small particles of iron, stone and
frozen gases called meteorites⁷.

       Student Evaluation

  My general Impression Content:
   ____ helpful _____ adequate
   ____ inadequate
  Level Of Difficulty:
   ____ easy ____ fair
   ____ difficult
   My Major Problems
   ____ understanding meanings
   ____ selecting major points
   ____ organizing facts
   ____ retaining concepts
   My Comprehension Score
   __________________________

Exercises:

Ⅰ. 1. -8,000 miles
       ______________________
    2. 93,000,000 miles
       ______________________
    3, 365 1/4 days
       ______________________
    4. <35,000,000 miles
       ______________________
    5. ≈24,000,000 miles
       ______________________
    6. - 1/4 million miles
       ______________________

Ⅱ. Class: __________________
    Size: ___________________
    Temperature: ____________
    Form: ___________________
    Energy Producing Process:
    _________________________
    Difference between a Star (sun) and a Planet:
    _________________________

1 supplanted   

把…排挤掉，取代( supplant的过去式和过去分词 )

参考例句：

• In most offices, the typewriter has now been supplanted by the computer. 当今许多办公室里，打字机已被电脑取代。
• The prime minister was supplanted by his rival. 首相被他的政敌赶下台了。

2 microprocessors   

微（信息）处理机( microprocessor的名词复数 )

参考例句：

• This sort of work would have been inconceivable before the advent of microprocessors. 在微处理机问世之前这种工作是难以想象的。
• In microprocessors, the name used for the IEEE interface bus standard. 微处理机中，IEEE接口总线标准的名字。

3 microcomputers   

微型计算机( microcomputer的名词复数 )

参考例句：

• Microcomputers are playing an important role in our lives. 微型计算机在我们生活中扮演着重要的角色。
• Many microcomputers do allow you to directly address a memory address. 目前有许多微计算机允许你直接访问某个存储单元。

4 minor   

adj.较小(少)的，较次要的；n.辅修学科；vi.辅修

参考例句：

• The young actor was given a minor part in the new play.年轻的男演员在这出新戏里被分派担任一个小角色。
• I gave him a minor share of my wealth.我把小部分财产给了他。

5 asteroids   

n.小行星( asteroid的名词复数 )；海盘车，海星

参考例句：

• Asteroids,also known as "minor planets",are numerous in the outer space. 小行星，亦称为“小型行星”，在外太空中不计其数。
• Most stars probably have their quota of planets, meteorids, comets, and asteroids. 多数恒星也许还拥有若干行星、流星、彗星和小行星。

6 countless   

adj.无数的，多得不计其数的

参考例句：

• In the war countless innocent people lost their lives.在这场战争中无数无辜的人丧失了性命。
• I've told you countless times.我已经告诉你无数遍了。

7 meteorites   

n.陨星( meteorite的名词复数 )

参考例句：

• Small meteorites have left impact craters all over the planet's surface. 这个行星的表面布满了小块陨石留下的撞击坑。 来自《简明英汉词典》
• One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites. 地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的。 来自《简明英汉词典》