not explode.
[A] while
[B] though
[C] because
[D] if
五、条件状语从句: 表条件的状语从句主要由if,whether,as long as (只要),provided(只要) (that)等词引导,例如
10) Uniform acceleration occurs the rate of change remains the same over successive equal intervals of time.
[A] according
[B] if
[C] with
[D] under
11) Abstraction goes into the making of any work of art, or not.
[A] whether the artist being aware of it
[B] the artist is being aware whether
[C] whether the artist is aware of it
[D] the artist is aware whether
六、表示其他关系的状语从句,主要包括地点和行为方式状语从句
12) the Atlantic Ocean crosses the equator,the trade winds cause a flow of water to the west.
[A] Where
[B] And
[C] That
[D] At
13) Nails protect the ends of human fingers and toes protect the toes of most other vertebrates.
[A] claws
[B] as claws
[C] as claws do
[D] so do claws
七、状语从句中的“主语+be”的省略:状语从句中的主语和系动词be常有同时被省略掉的现象,但需有两个前提条件
(1) 从句主语与主句主语一致,且从句谓语为“be”;
(2) 省略后的结构为“连词+现在分词”、“连词+过去分词结构”以及“连词+介词短语”和“连词+形容词(名词短语) ”结构,例
14) ,glasses can correct most sight defects in healthy eyes.
[A] When well fitted
[B] Well fitted when
[C] Well fitted if
[D] If well fitted when
15) Although rigid,bones exhibit a degree of elasticity that enables the skeleton to withstand considerable impact.
[A] apparently
[B] are apparently
[C] apparently their
[D] are they apparently
16) When in arctic regions,the Aleuts construct igloos as temporary winter shelters.
[A] travel
[B] to travel
[C] traveling them
[D] traveling
八、例题解析
1) D无论在语法上还是语意上均正确,而若选A和B,则只是两个句子的无谓罗列,这在英语中是绝对不允许的,而C是一个名词短语,也不符合
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