is known to us all that the old scientist.for life was hard in the past.still works hard in his eighties．( )A．It, whomB．As,whoseC．As,whomD．It,whose 题目和参考答案——青夏教育精英家教网—

题目内容

2．______ is known to us all that the old scientist，for ______ life was hard in the past，still works hard in his eighties．（　　）

A．

It； whom

B．

As；whose

C．

As；whom

D．

It；whose

分析众所周知，这位年老的科学家，过去他的生活很艰难，在他八十多岁时仍然努力工作．

解答答案：A 考查it的用法．第一空：it is known to us all that…是个固定句型，意为"众所周知…"．第二空：介词+关系代词引导的定语从句，先行词the old scientist指人，作介词for的宾语，只能用whom，故选A．

点评考查it用法，弄清楚it的各种用法，准确地翻译句子，然后根据句意，选择最合适的答案．

练习册系列答案

13．What he has done isworth praising ．
他的行为值得表扬．

10．-What a terrible accident!
-Yes．It happened _____ the four roads meet．（　　）

17．---Excuse me，could you tell me the time，please？
---Sorry，I don't have a watch with me．
---______（　　）

	A．	Thanks a lot		B．	What a pity
	C．	I'm sorry to hear that		D．	Thanks all the same

6．One should accomplish tasks______ instead of always turning to others for help．（　　）

12．Hollywood's theory that machines with evil（邪恶） minds will drive armies of killer robots is just silly．The real problem relates to the possibility that artificial intelligence（AI） may become extremely good at achieving something other than what we really want．In 1960 a well-known mathematician Norbert Wiener，who founded the field of cybernetics（控制论），put it this way："If we use，to achieve our purposes，a mechanical agency with whose operation we cannot effectively interfere（干预），we had better be quite sure that the purpose put into the machine is the purpose which we really desire．"
     A machine with a specific purpose has another quality，one that we usually associate with living things：a wish to preserve its own existence．For the machine，this quality is not in-born，nor is it something introduced by humans； it is a logical consequence of the simple fact that the machine cannot achieve its original purpose if it is dead．So if we send out a robot with the single instruction of fetching coffee，it will have a strong desire to secure success by disabling its own off switch or even killing anyone who might interfere with its task．If we are not careful，then，we could face a kind of global chess match against very determined，super intelligent machines whose objectives conflict with our own，with the real world as the chessboard．
     The possibility of entering into and losing such a match should concentrate the minds of computer scientists．Some researchers argue that we can seal the machines inside a kind of firewall，using them to answer difficult questions but never allowing them to affect the real world．Unfortunately，that plan seems unlikely to work：we have yet to invent a firewall that is secure against ordinary humans，let alone super intelligent machines．
     Solving the safety problem well enough to move forward in AI seems to be possible but not easy．There are probably decades in which to plan for the arrival of super intelligent machines．But the problem should not be dismissed out of hand，as it has been by some AI researchers．Some argue that humans and machines can coexist as long as they work in teams--yet that is not possible unless machines share the goals of humans．Others say we can just"switch them off"as if super intelligent machines are too stupid to think of that possibility．Still others think that super intelligent AI will never happen．On September 11，1933，famous physicist Ernest Rutherford stated，with confidence，"Anyone who expects a source of power in the transformation of these atoms is talking moonshine．"However，on September 12，1933，physicist Leo Szilard invented the neutron-induced（中子诱导） nuclear chain reaction．

67．Paragraph 1 mainly tells us that artificial intelligence mayA．
A．run out of human control
B．satisfy human's real desires
C．command armies of killer robots
D．work faster than a mathematician
68．Machines with specific purposes are associated with living things partly because they might be able toA．
A．prevent themselves from being destroyed
B achieve their original goals independently
C．do anything successfully with given orders
D．beat humans in international chess matches
69．According to some researchers，we can use firewalls toD．
A．help super intelligent machines work better
B．be secure against evil human beings
C．keep machines from being harmed
D．avoid robots'affecting the world
70．What does the author think of the safety problem of super intelligent machines？C
A．It will disappear with the development of AI．
B．It will get worse with human interference．
C．It will be solved but with difficulty．
D．It will stay for a decade．

If you don’t think technology can improve your trip better, meet Judy. When she recently checked into the Biu Hotel in Zurich, a clerk asked her to pay hundreds of dollars higher than the online offer. It was not a cheap stay, but it became more of one after she fired up the Booking. Com app she’d used to purchase her room on her smartphone. “As soon as I showed him the rate, he honored it,” Judy says.

Technology may create challenges for travelers-indeed, it may have led to Judy’s rate confusion in the first place-but it can also solve them. The solutions go beyond making sure of a hotel rate. The latest version of Booking.com is among the most feature-rich booking programs. Users can select hotels by location, make a secure booking and view the confirmed rate.

Another pain point for travelers is traffic that eats away precious vacation time. There’s a new app for that, called Commute. As the name implies, it’s aimed at users who have to make the same trip every day. Just input basic information about your destination and expected leaving time, and the app will start sending you traffic data 15 minutes before you leave.

Another source of travel-related conflict and confusion is money. That’s particularly true when you’re dealing with a foreign currency. The latest version of Travel Money Tracker helps travelers prevent currency mix-ups. It instantly converts(兑换) a country’s native currency to yours, so you know exactly how much that Espresso(浓咖啡) in Milan costs in dollars. One extra feature is the ability to set up an alert that tells you when you’re overspending, which can sometimes be a problem when you’re on vacation. The only catch, of course, is that you have to remember to record all your purchases.

1.What does the example of Judy want to show?

A. The rate of Biu Hotel was higher than that of others

B. Technology can make our trips better

C. The clerk was very friendly and patient

D. The smart phones have many functions

2.What is the main function of Travel Money Tracker?

A. It tells people how much Espresso costs

B. It warns when people are overspending

C. It records all people’s purchases

D. It changes the native currency to yours

3.What’s the purpose of the passage?

A. To encourage people to travel

B. To help people with technology problems

C. To introduce some new apps

D. To provide people with traveling information

12．The booking notes of the play"the Age of Innocence"：
Price：10
BOOKING
There are four easy ways to book seats for performance：
-----in person
The Box Office is open Monday to Saturday，10 a．m．-8 p．m．
-----by telephone
Ring 01324976 to reserve your tickets or to pay by credit card
（Visa，MasterCard and Amex accepted）
-----by post
Simply complete the booking form and return it to Global Theatre Box Office．
-----on line
Complete the on-line booking form at www．Satanfiedtheatre．com
DICOUNTS：
Saver：2 off any seat booked any time in advance for performances from Monday to Thursday．Savers are available for children up to 16 years old，over 60s and full-time students．
Supersaver：half-price seats are available for people with disabilities and one compa nion．It is advisable to book in advance．There is a maximum of eight wheelchair spaces available and one wheelchair space will be held until an hour before the show．
Standby：best available seats are on sale for 6 from one hour before the performance for people eligible（suitable）for Saver and Supersaver discounts and thirty minutes before for all other
customers．
Group Bookings：
There is a ten per cent discount for parties of twelve or more．
School：school parties of ten or more can book 6 standby tickets in advance and will get every tenth ticket free．
Please note：we are unable to exchange tickets or refund money unless a performance is cancelled due to unforeseen circumstances．
25．If you want to book a ticket，you CANNOTC
A．use the Internet
B．ring the booking number and pay for the tickets by credit card．
C．go to the Box Office on Sundays．
D．complete a booking form and post it to the Box Office．
26．If you make a group booking for a group of 14 adults，how much should you pay？D
A.120 B.150 C.140 D.126
27．Which of the following is NOT true according to the passage？D
A．There are only 8 wheelchair spaces in the theater．
B．The audience can‘t refund money if the performance is on show．
C．A group of 12 persons can get 10 per cent discount．
D．A school party of 15 students should pay 90 for the standby tickets．
28．What kind of tickets are the cheapest？B
A．The standby tickets．
B．The standby tickets for school parties of ten or more．
C．The tickets for Saver discount．
D．The tickets for group booking．

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