Directions:Read the following text. Choose the best word(s) for each numbered blank and mark [A] , [B] , [C] or [D] on ANSWER SHEET I.

The safety of mobile phones (U. S. cell-phones) seems to face new questions after Pitish researchers found that microwave emissions can affect the health of earthworms in unexplained ways.

The larvae of tiny soil worms called nematodes grew faster and became more (1) after they were (2) for a long time to weak microwave radiation, of the (3) strength and frequency as that (4) by mobile phones, they found.

Why this occurred is (5) , and there is no evidence that human health is also affected. But, they warn, the finding challenges the standards which (6) whether a mobile is safe or not.

These standards are based on whether the radiation is strong enough to cause a batch of (7) to warm up. Heat causes the chemical bonds in cells to (8) , a disruption that can be a potential (9) for cancer.

The research, led by David de Pomerai at Nottingham University, central England, said larvae exposed to the microwaves (10) between eight and eleven percent faster than (11) which had not been exposed.

In addition, the (12) of worms that (13) into egg-bearing adults was 28～40 percent higher.

By comparison, worms that had been exposed to (14) heat suffered a 10-percent reduction in their growth rate, and (15) none developed into fertile adults.

The experiment is important because it suggests that microwaves might trigger biological effects. (16) warming any tissues.

The scientists do not (17) out the possibility that radiation could cause hot-.spots to occur somewhere in the worm that then affected cell (18) .

The worry, though, is that the 19 basis for determining mobile safety is whether microwaves cause heating in bulk tissue rather than just at (20) in it, they note.

1. [A] adequate [B] fertile [C] ample [D] multiple

2. [A] discharged [B] exposed [C] released [D] delivered

3. [A] uniform [B] alike [C] same [D] respective

4. [A] conveyed [B] commuted [C] dispatched [D] emitted

5. [A] suspicious [B] unclear [C] dubious [D] contradictory

6. [A] determine [B] dispose [C] contrive [D] resolve

7. [A] issue [B] component [C] tissue [D] ingredient

8. [A] Peak down [B] put down [C] Peak into [D] put off

9. [A] inspiration [B] spur [C] push [D] trigger

10. [A] grew [B] amplified [C] magnified [D] swelled

11. [A] that [B] one [C] those [D] ones

12. [A] dimension [B] proportion [C] section [D] ratio

13. [A] harvested [B] matured [C] yielded [D] sprouted

14. [A] trivial [B] inferior [C] Subordinate [D] mild

15. [A] identically [B] virtually [C] vitally [D] inherently

16. [A] without [B] with [C] despite [D] unless

17. [A] dispel [B] dismiss [C] exile [D] rule

18. [A] procedures [B] processes [C] procession [D] channel

19. [A] exclusive [B] sole [C] alone [D] lonely

20. [A] spots [B] stains [C] localities [D] locations

参考答案：

1. [解析] 选[B]，语义衔接题。本句是描述科学家实验的结果。tiny soil worms在与手机释放的能量相同的microwave radiation的影响下，会grow faster，根据文意可判断，本题需要选择一个描述身体机能的词。而选项中只有[B]表示“繁殖力增强”，符合题意。而[A]“足够的，适当的”、[C]“充足的，广大的”、[D]“多重的，多样的”，都不合题意。

2. [解析] 选[B]，语义衔接题。本题需要选的词，在下文中有出现。科学家在做实验的时候，是将幼虫置于微波辐射的环境中，即幼虫被“暴露”在微波下。其他选项文中未曾提及相关信息，故[B]最恰当。

3. [解析] 选[C]，语义衔接题。为了验证手机辐射对生命机体的影响，当然要创造一个跟手机辐射的强度和频率完全一样的环境，否则实验就没有意义。所以此处强调“同样的”条件，选[C]。另外三个选项：[A]“统一的”、 [B]“相似的”、[D]“个别的”都不确切。

4. [解析] 选[D]，语义衔接题。手机与微波的关系，当然是手机释放微波。从词浯搭配角度讲，主体词是“微波”，应该接[D]“放射”，而[A]“运送，传达，转让”、[B]“交换，变换”、[C]“派遣，发送”均搭配不当。

5. [解析] 选[B]，语义衔接题。文章首段提到，微波辐射在以unexplained ways影响身体健康。本题后面一句又提到no evidence。这一切充分说明发生的原因是unclear“不清楚的”。故[B]选项正确。

6. [解析] 选[A]，惯用衔接题。对两可的答案，只能用determine“断定”一词，即[A]正确。而[B]“安排，处理”，[C]“设计，设法”，[D]“解决”，都不宜接whether从句。

7. [解析] 选[C]，语义衔接题。本文的主题就是讲手机辐射对生命的影响。所以从生理的角度和下文来看，只宜考虑受影响的是[C]“组织结构”，而不是[B]“成分”或[D]“配方”。至于[A]，是形似词，则更不切题。

8. [解析] 选[A]，语义衔接题。本题所缺之词，与后面的disruption是同义复现。由此可以断定，答案应是[A]“分解”，而不是[B]“镇压”，更不是[C]“闯入”、[D]“拖延”。

9. [解析] 选[D]，语义衔接题。对癌症而言，生命机体中的化学组织的瓦解，是癌症发生的一个诱因。所以选项[D] trigger“引发，诱因，触发”，切合题意。而其他选项：[A]“灵感”，[B]“鞭策，刺激，疾驰，驱策”，[C]“推，推进，增加，努力争取”，都不合适。

10. [解析] 选[A]，语义衔接题。本题属于原词复现。文章第二段已经出现了grew faster，故应选用[A]grew“生长”。

11. [解析] 选[C]，结构衔接题。本题是在为which had not been exposed找先行词。由于宾语从句主语为复数名词larvae，比较从句的主语应该为复数的指示代词“那些”，即[C]。而不是[A：、[B]。[D] ones为复数不定代词“任何那些”，在这里不恰当。

12. [解析] 选[B]，语义衔接题。本句后面用的是28～40 percent，那么前面对应的也应该是百分比，即是“比例”， 答案为[B]。其他选项：[A]“尺寸，尺度”、[C]“部分，部件”，明显不符台题意。而[D]“比，比率”，侧重于“商”的概念，强调两数之比。

13. [解析] 选[B]，语义衔接题。后面的介词结构是“成为生卵的成虫”，当然要用动词“成熟”，即选[B]。选项[A]“收获，收割”明显不对；选项[C]“出产，生产”，强调的是生产。选项f D]sprout虽然有生长的意思，但多指植物发芽。

14. [解析] 选[D]，语义衔接题。本题所选的词是来修饰heat的，对在虫子身上做实验的热度来讲，以“适度的”最合适。若用[A]“微不足道的”，那么就失去了实验价值。而选项[B]“不肥沃的，贫瘠的，不毛的，不结果实的”、[C]“次要的，从属的，下级的”，皆不能用来修饰heat。

15. [解析] 选[B]，语义衔接题。作为语气的衔接，只有选项[B]virtually"事实上，实质上"符合文章语气，可以切实提示下句的内容。而[A]"同一地，相等地"、[C]"紧要地"、[D]"天性地，固有地"，均不够切合题义。

16. [解析] 选[A]，语义衔接题。文章上一段是讲在mild heat的情况下，虫子的变化。而作者提及上一段的目的，无非是提示在未加热情况下，微波辐射所产生的biological effects。表示否定的词，只有[A]与[D]。[D]unless后常跟从句，是不符合题意的，故应选[A]。

17. [解析] 选[D]，惯用衔接题。从搭配上讲，能与"可能性"进行搭配的只有rule out，表示"排除"。而[A]"驱散，驱逐，使消散"，[B]"解散，下课，开除"，[C]"放逐，流放"，都衔接不当。

18. [解析] 选[B]，语义衔接题。从文章的主题讲，实验研究的是辐射对机体的影响。辐射会使机体加速生长，这是一个重要的方面及研究发现。生长无非是细胞分裂的过程，所以从选项中可以看到，只有[B]process"过程"符合此意。

19. [解析] 选[B]，词义辨析题。本题所选的词是用来修饰basis的。[D]lonely"孤独的，寂寞的，偏僻的"通常修饰人，所以排除。而选项[A]exclusive强调的是排他性，不是本题所强调的重点，因此不恰当；[C]alone通常只能作后置定语；而选项[B]sole"单独的，唯一的"无论是从语法角度还是从文意来讲，都符合要求，故应用sole basis。

20. [解析] 选[D]，语义衔接题。在关联词语rather than前后，应该是语义对立的两项。前面已经提到大面积(bulk)，所选之词应该是表示局部的意思。首先应该排除[A]"斑点"与[B]"污点"；[C]localities多以语言术语的形式出现，故正确选项是[D]"特定部位"。