神马作文网做一下下面的英语阅读,正确率要高点的.
来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/13 08:37:01
做一下下面的英语阅读,正确率要高点的.
The biggest safety threat facing airlines today may not be a terrorist with a gun,but the man with the portable computer in business class .in the last 15 years,pilots have reported well over 100 incidents that could have been caused by electromagnetic interference.The source of this interference remains unconfirmed,but increasingly,experts are pointing the blame at portable electronic devices such as portable computers,radio and cassette players and mobile telephones.
RTCA,an organization which advises the aviation industry,has recommended that all airlines ban such device from being based during “critical” stages of flight particularly take-off and landing.Some of experts have gone further,calling for a total ban during all flight.Currently,rules on using these devices are left up to individual airlines.And although some airlines prohibit passengers from using such equipment during take-off and landing,most are reluctant to reinforce a total ban given that many passengers want to work during flight.
The difficulties are predicting how electromagnetic fields might affect an aircraft’s computers.Experts know that portable devices emit radiation,which affects those wavelength which aircraft use for navigation and communication.But ,because thy have not been able to reproduce these effects in a laboratory,they have no way of knowing whether the interference might be dangerous or not.
The fact that aircraft may be vulnerable to interference raises he risk that terrorists may use radio system in order to damage navigation equipment.As worrying,though,the passenger who can’t hear the instructions to turn off his radio because the music’s too loud.
18.Few airlines want to impose a total ban on their passengers using electronic devices because___
A.they don’t believe there is such danger as radio interference
B.the harmful effect of electromagnetic interference is yet to be proved
C.most passengers refuse to take a plane where the use of radio and cassette players is banned
D.they have other effective safety measures to fall back on
19.Why is it difficult to predict the possible effects of electromagnetic fields on an airplane’s computers?
A.Because it is extremely dangerous to conduct such research on an airplane
B.Because it remains a mystery what wavelengths are liable to be interfered with.
C.Because research scientists have not been able to produce same effects in labs.
D.Because experts lack adequate equipment to do such research.
20.It can be inferred from the passage that the author___
A.is in favor of prohibiting passengers’ use of electronic devices completely
B.has overestimated the danger of electromagnetic interference
C.hasn’t formed his own opinion on this problem
D.regards it as unreasonable to exercise a total ban during flight
The biggest safety threat facing airlines today may not be a terrorist with a gun,but the man with the portable computer in business class .in the last 15 years,pilots have reported well over 100 incidents that could have been caused by electromagnetic interference.The source of this interference remains unconfirmed,but increasingly,experts are pointing the blame at portable electronic devices such as portable computers,radio and cassette players and mobile telephones.
RTCA,an organization which advises the aviation industry,has recommended that all airlines ban such device from being based during “critical” stages of flight particularly take-off and landing.Some of experts have gone further,calling for a total ban during all flight.Currently,rules on using these devices are left up to individual airlines.And although some airlines prohibit passengers from using such equipment during take-off and landing,most are reluctant to reinforce a total ban given that many passengers want to work during flight.
The difficulties are predicting how electromagnetic fields might affect an aircraft’s computers.Experts know that portable devices emit radiation,which affects those wavelength which aircraft use for navigation and communication.But ,because thy have not been able to reproduce these effects in a laboratory,they have no way of knowing whether the interference might be dangerous or not.
The fact that aircraft may be vulnerable to interference raises he risk that terrorists may use radio system in order to damage navigation equipment.As worrying,though,the passenger who can’t hear the instructions to turn off his radio because the music’s too loud.
18.Few airlines want to impose a total ban on their passengers using electronic devices because___
A.they don’t believe there is such danger as radio interference
B.the harmful effect of electromagnetic interference is yet to be proved
C.most passengers refuse to take a plane where the use of radio and cassette players is banned
D.they have other effective safety measures to fall back on
19.Why is it difficult to predict the possible effects of electromagnetic fields on an airplane’s computers?
A.Because it is extremely dangerous to conduct such research on an airplane
B.Because it remains a mystery what wavelengths are liable to be interfered with.
C.Because research scientists have not been able to produce same effects in labs.
D.Because experts lack adequate equipment to do such research.
20.It can be inferred from the passage that the author___
A.is in favor of prohibiting passengers’ use of electronic devices completely
B.has overestimated the danger of electromagnetic interference
C.hasn’t formed his own opinion on this problem
D.regards it as unreasonable to exercise a total ban during flight
航空公司今天所面临的最大的安全威胁可能不会与恐怖分子枪,但与业务类的便携式计算机的人.在过去15年里,飞行员已远远超过100事件,可能已经引起的电磁干扰.这种干扰源仍然未经证实,但越来越多的专家们指出在便携式计算机,收音机和录音机和移动电话等便携式电子设备的责任.
RTCA,建议对航空业的组织,建议所有的航空公司禁止在“关键”的飞行,特别是起飞和着陆阶段的此类装置.走得更远一些专家呼吁,为全面禁止在所有飞行.目前,这些设备上使用的规则都留给了个别航空公司.虽然有些航空公司禁止乘客在起飞和降落,使用这种设备最不愿意加强全面禁止,许多旅客希望在飞行期间工作.
困难是预测如何电磁场可能会影响飞机的电脑.专家们知道,便携式设备发出的辐射,从而影响飞机导航和通信的使用的波长.但是,因为你一直无法在实验室中重现这些影响,他们有没有办法知道是否干扰可能是危险的或不.
事实上,飞机可能会受到干扰,引起了他的风险,恐怖分子可能使用的无线电系统以破坏导航设备.然而,令人担忧,乘客谁不能听到的指示,因为音乐太大声,关掉他的无线电.
18.一些航空公司要强加他们的乘客使用电子设备的全面禁止because___
答：他们不相信有这种危险的无线电干扰
B.电磁干扰的有害影响是尚未被证实
三大部分乘客拒绝采取了收音机和录音机的使用被禁止的飞机
D.它们有其他有效的安全措施,依傍
19.为什么很难预测飞机的计算机上的电磁场可能产生的影响?
答：因为它是极其危险的,在飞机上进行这样的研究
B.因为什么波长容易被干扰,它仍然是一个谜.
由于研究的科学家一直无法在实验室中产生同样的效果.
专家D.因为缺乏足够的设备,做这样的研究.
20.由此可以推断,从通过的author___
A.赞成完全禁止乘客使用电子设备
B.高估的电磁干扰的危险
C.没有在这个问题上形成了自己的见解
四方面,它作为全面禁止在飞行过程中不合理的行使
C,C,C
RTCA,建议对航空业的组织,建议所有的航空公司禁止在“关键”的飞行,特别是起飞和着陆阶段的此类装置.走得更远一些专家呼吁,为全面禁止在所有飞行.目前,这些设备上使用的规则都留给了个别航空公司.虽然有些航空公司禁止乘客在起飞和降落,使用这种设备最不愿意加强全面禁止,许多旅客希望在飞行期间工作.
困难是预测如何电磁场可能会影响飞机的电脑.专家们知道,便携式设备发出的辐射,从而影响飞机导航和通信的使用的波长.但是,因为你一直无法在实验室中重现这些影响,他们有没有办法知道是否干扰可能是危险的或不.
事实上,飞机可能会受到干扰,引起了他的风险,恐怖分子可能使用的无线电系统以破坏导航设备.然而,令人担忧,乘客谁不能听到的指示,因为音乐太大声,关掉他的无线电.
18.一些航空公司要强加他们的乘客使用电子设备的全面禁止because___
答：他们不相信有这种危险的无线电干扰
B.电磁干扰的有害影响是尚未被证实
三大部分乘客拒绝采取了收音机和录音机的使用被禁止的飞机
D.它们有其他有效的安全措施,依傍
19.为什么很难预测飞机的计算机上的电磁场可能产生的影响?
答：因为它是极其危险的,在飞机上进行这样的研究
B.因为什么波长容易被干扰,它仍然是一个谜.
由于研究的科学家一直无法在实验室中产生同样的效果.
专家D.因为缺乏足够的设备,做这样的研究.
20.由此可以推断,从通过的author___
A.赞成完全禁止乘客使用电子设备
B.高估的电磁干扰的危险
C.没有在这个问题上形成了自己的见解
四方面,它作为全面禁止在飞行过程中不合理的行使
C,C,C