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新概念四第15课练习题及答案

2016-10-07 13:52:00来源：网络

　　为了方便同学们自学新概念，新东方在线为大家整理了新概念四第15课练习题及答案，希望以下内容能够为大家的新概念英语学习有所帮助~

　　新概念英语第4册课后习题及答案大全>>立即查看

　　新概念英语第4册课后习题答案:

　　Unit 15 CADCD DBACA CA

　　新概念英语第4册课后习题:

　　Multiple choice questions 多项选择题

　　Choose the correct answers to the following questions.

　　Comprehension 理解

　　1 Fear of industrial espionage ______.

　　a.leads to lack of freedom in scientific research

　　b.especially applies to scientific research of a general and fundamental nature

　　c.can lead to secrecy in scientific research

　　d.creates an atmosphere of distrust in business

　　2 Which of these statements is true?

　　a.Some kinds of scientific research are ‘more secret’ than others.

　　b.All kinds of scientific research are top secret.

　　c.Firms never tell anyone anything about their scientific research.

　　d.Scientific research workers never speak to each other.

　　3 Firms want to be sure ______.

　　a.they limit all those engaged in carrying out scientific research

　　b.that larger companies can't find out about their scientific research

　　c.they are working in an atmosphere of complete secrecy

　　d.they own the rights to intellectual property before they reveal what they're doing

　　4 The possibility of making discoveries by accident ______.

　　a.make it difficult to obtain scientific books from libraries

　　b.encourages competition from other agents

　　c.increases the need for secrecy

　　d.means that every discovery has to be patented

　　Structure 句型

　　5 One is the general atmosphere of secrecy ______.(11.1-2)

　　a.which it is carried out

　　b.which is carried out

　　c.it is carried out

　　d.it is carried out in

　　6 ______ any inquiry is a secret one, it naturallylimits - (1.3)

　　a.With regard to

　　b.As well as

　　c.Supposing that

　　d.To the extent that

　　7 Some of the bigger firms are engaged inresearches which are ______ general that it is apositive advantage to them not to keep themsecret.(11.6-7)

　　a.such

　　b.so

　　c.so that

　　d.in order that

　　8 They ______even more processes as secret processes.(11.8-9)

　　a.keep

　　b.kept

　　c.are kept

　　d.are keeping

　　Vocabulary 词汇

　　9 There is the ______of freedom of the individual research worker.(1.2)

　　a.loss

　　b.emptiness

　　c.absence

　　d.luck

　　10 It naturally limits all those engaged in ______.(1.3)

　　a.performing it

　　b.involving it

　　c.betrothed to it

　　d.allowing it

　　11 It is ______not to keep them secret.(11.6-7)

　　a.with their knowledge

　　b.on their account

　　c.in their best interests

　　d.for their benefit

　　12 Sometimes the secrecy goes to such a ______that ...(1.1.10-11)

　　a.degree

　　b.process

　　c.limit

　　d.period


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