D.To replace the missiles，becoming a new weapon.

答案　B

5.Which of the following is NOT true according to the text?

A.Hubble discovered our galaxy is bigger than we thought it was.

B.The blue mould was in fact the natural form of penicillin.

C.Today it's impossible to donate your heart to hospital when you die.

D.The first computer was hard to program.

答案　C

Ⅲ.课文难句分析

He discovered small areas of mist which were in fact galaxies like our own，millions of light years away from us，which proved that the universe was vastly larger than had previously been thought.

[句式分析]　句中有两个which。第一个which引导限制性定语从句；第二个which引导非限制性定语从句。

[自主翻译]　他发现的小的雾区实际上是像我们的银河系一样的星系，离我们有几百万光年之远。这个发现证明了宇宙比我们以前认为的要大得多。

重点词汇

1.Medical advances ranged from discovering the causes of diseases under microscopes to surgical procedures replacing diseased organs with donated ones.

人们在显微镜下发现了致病的原因，掌握了用捐献的器官来替换病变的器官的外科手术程序，诸如此类都是医学取得的进步。

range from...to...在......到......之间变动

range v.变动，排列；n.范围；幅度

a range of一系列；一些；一套

(1)The national park has a large collection of wildlife，ranging from butterflies to elephants.

国家公园有一大批野生生物，从蝴蝶到大象都有。(2017·北京)

(2)Our funds were limited，and none of the houses in our price range seemed satisfactory.

我们的资金有限，而且在我们价格范围内的房子看起来都不令人满意。(2015·天津)

(3)To answer these questions，Brooks surveys a wide range of disciplines.

为了回答这些问题，Brooks调查了大量的学科。(2015·湖北)