Watch out! Do not get too close to the building. The walls .

A. are being painted

B.are painted

C. have painteci

D. have been painting

練習冊系列答案
相關習題

科目：高中英語 來源：2016屆安徽省高一上學期期末考試英語試卷（解析版） 題型：閱讀理解

It is known to us that puter users are being warned by industry experts to pay attention to secret codes which could be used to record their conversation.

E-mails, screen savers, and electronic greeting cards can carry a secret code which is able to turn on the puter’s microphone, make a recording, and forward it to someone else without the user’s knowledge.

In fact any attachments (附件) sent to a puter, whether it is a game of Space Invaders, or a moving picture, can possibly be used to spy (窺探).

Experts say people should always think twice about opening attachments because --- although not mon --- bugging (竊聽) by puter can and has been done.

Bill Lyons, head of the Internet Security pany Finjan, said, “People in the army have tested this and you can be sure, if people in general are aware of it, then puter hackers (黑客) are aware of it. The frightening thing is that there are tools on the Internet which people, using a simple search method, can find, and which will enable them to attach this dangerous code to simple attachments.”

【小題】What is the advice given in the passage?

A. Use secret codes to record other people’s conversation.

B. Be careful when opening an attachment.

C. Never open any attachments.

D. Never use secret codes.

【小題】What worries the experts is that ___ .

A. nobody seems to believe such things

B. nobody knows the danger of the code

C. tools can easily be used to tie dangerous codes to e-mails

D. effective ways can never be found to deal with the problem.

【小題】Which of the following is TRUE according to the passage?

A. A moving picture cannot be used to spy.

B. Electronic greeting cards cannot carry a secret code.

C. A secret code is used to destroy the puter system.

D. Any attachments sent to a puter may carry a secret code.

查看答案和解析>>

科目：高中英語 來源：2014-2015學年江蘇省南京市鹽城市兩校高三第二次模擬考試英語試卷（解析版） 題型：單項填空

Mr. Smith let off upon me the speech he_______ to make all along.

A. had died B. died

C. was dying D. had been dying

查看答案和解析>>

科目：高中英語 來源：2014-2015學年安徽屯溪一中高三第四次月考英語試卷（解析版） 題型：單項填空

John was usually so careful, this time he made a small mistake.

A. still B. yet

C. thus D. even

查看答案和解析>>

科目：高中英語 來源：2014-2015學年安徽省江南十校高三期末大聯(lián)考英語試卷（解析版） 題型：單項填空

Success usually goes to____is well prepared.

A. the person B.the one

C. whoever D.who

查看答案和解析>>

科目：高中英語 來源：2014-2015學年安徽省江淮名校高三第二次聯(lián)考英語試卷（解析版） 題型：完形填空

第二節(jié)完形填空（共20小題，每小題1．5分，滿分30分）

閱讀下面短文，從短文后面各題所給的四個選項（A、B、C和D）中選出可以填入空白處的最

佳選項，并在答題卡上將該項涂黑。

With time flying, people become aged．Then many people even in their middle age often start to notice that their memory and mental clarity are not what they used to be．We suddenly can' t remember we put the keys just a moment ago, or an old friend' s name, or the name of an old band we used to love．As the brain , we refer to these occurrences as "senior moments．" seemingly innocent, this loss of mental focus can potentially have a（n） effect on our social and well—being．

Neuroscientists,-experts who study the nervous system, are increasingly showing that there' s actually a lot that can be done．It out that the brain needs exercise in much the same way our muscles do, and the right mental can significantly improve our basic cognitive（ 認知 ） ．Thinking is basically a of making connections in the brain．To a certain ;extent, our ability to in making the connections that drive intelligence is inherited（繼承） , be-cause these connections are made through effort and practice, scientists believe that intelligence can expand and wave mental effort．

Now, a new Web-based company has taken a step and developed the first "brain training program" designed to actually help people improve and their mental sharpness．

The Web-based program you to systematically improve your memory and attention skills．The program keeps a（ n） of your progress and provides detailed feedback（反饋） your performance and improvement．Most importantly, it changes and improves the games you play to up the strengths you are developing—much like a（ n ） exercise routine which requires you to increase resistance and vary your muscle use．

1.A．where B．when C．that D．why

2.A．improves B．fades C．recovers D．falls

3.A．If B．Unless C．Once D．While

4.A．irregular B．limited C．damaging D．positive

5.A．personal B．psychological C．mental D．physical

6.A．turns B．finds C．points D．figures

7.A．connection B．responses C．workouts D．a(chǎn)ssociations

8.A．style B．functions C．circumstances D．a(chǎn)tmosphere

9.A．steps B．condition C．consequences D．process

10.A．insist B．believe C．succeed D．fail

11.A．Therefore B．Moreover C．Otherwise D．However

12.A．a(chǎn)ccording to B．regardless of C．a(chǎn)part from D．instead of

13.A．back B．further C．a(chǎn)side D．a(chǎn)round

14.A．regain B．reflect C．review D．respond

15.A．suggests B．makes C．hurries D．a(chǎn)llows

16.A．hold B．record C．order D．pace

17.A．to B．with C．for D．a(chǎn)bout

18.A．irregularly B．habitually C．constantly D．unusually

19.A．carry B．put C．build D．take

20.A．risky B．effective C．meaningless D．familiar

查看答案和解析>>

科目：高中英語 來源：2014-2015學年安徽省江淮名校高三第二次聯(lián)考英語試卷（解析版） 題型：單項填空

____people from all walks of life are working hard to create ____new Hefei．

A．/; the B．The; the

C．/; a D．The; a

查看答案和解析>>

科目：高中英語 來源：2013-2014學年陜西省高三第七次適應性訓練英語試卷（解析版） 題型：單項填空

Knowing what colors look good _______ your skin is of great importance when you buy clothes.

A. beyond B. within

C. against D. over

查看答案和解析>>

科目：高中英語 來源：2014-2015學年重慶市高三上學期第二次月考英語試卷（解析版） 題型：單項填空

--- I was scolded by the teacher.

--- You are so silly not ____ your homework .

A. to have done B. to do

C. doing D. having done

查看答案和解析>>

同步練習冊答案