2011年大学英语六级改错模拟练习题10

会计考友

The biggest safety threat facing airlines today may not be a terrorist
. O; t+ G! d9 c/ ]; v5 xWith a gun, than the man with the portable computer in business class. 1._____
In the last 15 years, pilots report well over 100 incidents tha could 2. _____
0 Y# [* d* c; x3 H* U9 a& thave been caused by electromagnetic interference. The source of this
interference remains confirmed, but increasingly, experts are pointing the 3._____
blame at portable electronic devices such as portable computers, radio and 4. _____
cassette players and mobile telephones.
1 X, o, x" F) o- h. Z5 T+ _RTCA, an organization advertises the aviation industry, has 5. ______
recommended that the airline bans such devices from 6.______
used during “critical” stages of lignt, particularly take-off and landing. 7._______
Some experts have gone further, calling for a total ban during all flights.
Currently, rules on using these devices are left up to individual airlines.
And although some airlines prohibit passengers from using such equipment
2 n  k: ]3 g. B: ]# k# H8 |during take-off and landing, most are willing to enforce a total ban, given 8. ______
: h( l" F9 I6 B1 u0 Athat many pasengers want to work during flights.
The difficulty is predicting how electromagnetic fields may affect an
5 u8 `9 h" K8 J' D; [- Y* Kaircraft’s computers. Experts know that portable devices emit radiation
( ], C0 \2 b: j+ s/ t1 hwhich affect those wavelength which craft use for navigation and 9.______
" |4 ]* A1 h, e9 t3 e/ H/ a# Wcommunication. But , because they have not been able to reproduce
these effects in a laboratory, they have no way of knowing
5 _: l- ~" t8 ]2 r  `3 O答案：
9 B& Y; \) @2 l( ~  @* U1. than -%26gt; but
此处为固定句式not…but…，此句大意为“最大的飞行隐患不是持枪的恐怖分子，而是商务舱中携带手提电脑的人。”
2. report-%26gt; reported
该句子的时间状语是In the last 15 years表明其基本时态是一般过去时。
3. confirmed -%26gt; unconfirmed
根据上下文，电脑对飞机影响的原因还不大清楚，故使用unconfirmed。
4. radio -%26gt; radios
# B4 z4 }/ @6 v( F5. organization后加which
8 P8 v! s2 J2 v. K# P本句主语是RTCA，谓语是has recommended，中间的an organization advertises the aviation industry是RTCA的同位语，所以advertises the aviation industry应该是做定语修饰organization。故在organization后加which。
6. bans -%26gt; ban
recommend后面的宾语从句要使用虚拟语气，形式为(should) + v，should可省略。
7. used前加being
4 g) \/ ^0 ^$ k/ ~& k: D+ gFrom是介词，后面不能直接使用过去分词used，如果要表示相同的意思，要是用动名词形式才行。又因为devices与use之间是被动关系，所以应该加上being。
8. willing -%26gt; unwilling / reluctant或在willing前加not
, J2 e6 W4 f( J/ y' G此句的正确意思是：尽管一些航空公司禁止乘客在飞机起飞和着陆时使用那些电子产品，但由于许多乘客很想在飞行时继续办公，所以很多航空公司也不愿意彻底实施禁令。
9.affect -%26gt; affects
% [* A; S' Q7 a7 T7 D定语从句先行词radiation是单数，从句的谓语动词也要用单数。
2 R) t: n3 E' K# l10. danger -%26gt; dangerous