14．Technologyhas seen （see） some amazing developments in the last few decades．

分析 在過去的幾十年中技術(shù)見證一些令人驚奇的發(fā)展．

解答 答案是has seen．本題考查動詞時態(tài)；題干中in the last few decades表示"在過去的幾十年中"，是與現(xiàn)在相聯(lián)系的一段時間，與現(xiàn)在完成時連用，technology為抽象不可數(shù)名詞，做主語謂語動詞用單數(shù)；故答案是has seen．

點(diǎn)評 本題是要求用所給動詞的適當(dāng)時態(tài)填空，解題時要尋找題干中所提供的時態(tài)依據(jù)，同時關(guān)注特殊的時態(tài)結(jié)構(gòu)．

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：填空題

4．Henry Adamswas walking （walk） through the street when he caught sight of a tailor's shop．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

5．Higher hotel prices，airline capacity（容量） cuts and rising travel demand mean travelers will have to work harder to find a good deal in 2013．But there are plenty of online tools to help keep your vacation expensesin check．Here are some websites to help you save money on air tickets this year．
Looking for sales on a specific routs，or just want to go somewhere cheap？AirfareWatchdog．com searches for deals computers tend to miss，like promotion codes airlines include in e-mail advertisements．It also finds sales from Allegiant and Southwest，which typically aren't listed on major airfare（機(jī)票）search engines．You can sign up for specific fare notifications（通告）or a list of all the cheap round-trip fares from your local airport．
Where can you go for  500 or less？Kayak．com/explore will show you where you can go for a vacation for a particular price．You can narrow your search by month，region，flight length，weather or activity．Clicking on a price reveals dates the fare is available．
If you already know where you want to go，use itasoftware．com to find the cheapest dates to fly．To purchase，you must go to the airline's website or online agencies like Travelocity．
To figure out whether to buy that plan ticket now or wait，go to Bing．com/travel．Its Price Predictor can determine how likely a fare is to rise or fall during the next seven says from more than 250 cities in the Unites States to top domestic destinations and major airports in Europe．The site claims that its predictions are about75 percent accurate and save customers more than  50 on average for a round trip．
After you've booked your tickets at an airline site，enter your flight information at Yapta．com  to track the price so you don't miss out on savings if the price drops．
46．The underlined phrase"in check"in Paragraph 1 can be best replaced by"B"．
A．a(chǎn)bove limit    B．under control        C．beyond expectaion       D．in danger
47．We can infer from the passage that Allegiant is probablyA．
A．a(chǎn)n airline company                         
B．a(chǎn) well-known travel destination
C．a(chǎn) travel agency for cheap vacations       
D．a(chǎn) search tool for low-cost air tickets
48．If you've chosen a vacation destination，which website should you visit to choose the cheapest dates for air tickets？C
A．Airfare Watchdog．com B．kayak．com/explore     C．Itasoftware．com       D．Yapta．com
49．Who are the intended readers of the passage？D
A．Travel agency owners        
B．Advertising company bosses
C．Hotel managers hoping to attract customers
D．Holidaymakers looking for cheap air tickets
50．What can we know about the website Bing．com/travel from the passage？C
A．Its predictions are always accurate 
B．Its predictions focus on European airports
C．Its predictions are about how air tickets will vary in a week
D．Its predictions help customers save over $50 for a single trip．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

2．It seems you need to apologize quickly to avoidlosing （lose） a good friend．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

9．When the girl mentioned the question again，Arthur seemedembarrassed．（embarrass）

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

19．The bellindicating（indicate） the end of the period rang，interrupting our heated discussion．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

6．When she woke up，she found herselflying （lie） in hospital．

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

3．About eight years ago，I was a new teacher in the local women's prison（監(jiān)獄），where most of the prisoners were drug users．During one of my classes，a woman was crying．Her 17-year-old daughter had been ill．She wanted to see her，but she had no way to get to the hospital 30miles away．Having a daughter at the same age，I applied（申請） to drive the woman to the hospital．Finally I was allowed to go together with her for three hours on the following Saturday．
We were both in good spirits when we arrived at the hospital．Her daughter was in a worse situation than either of us could imagine．She couldn't recognize her mother．I encouraged the mother to hold her daughter's hands，touch her face and talk to her softly．Also，I sang some of the songs I used to sing to my daughter．The mother was in a deep state of depression and hopelessness．She wept（哭泣），and I held her silently in my arms．
A few weeks later，I learned that her daughter had passed away．That Saturday was the last time her mother had seen her．By helping them，I also learnt something important．That afternoon，I was reminded never to take those I love for granted．Love and value them right now．

56．Why was the woman crying in the class？B
A．No one helped her daughter．
B．She couldn't see her daughter．
C．Her daughter died in the hospital．
D．She couldn't find a good doctor for her daughter．
57．What does Paragraph 2mainly talk about？C
A．How the doctors tried their best to save the girl．
B．What a terrible situation the daughter was in．
C．What the author did to help the woman at the hospital．
D．How the author felt at the hospital．
58．What does the underlined phrase"passed away"in the last paragraph mean？A
A．diedB．wounded C．recoveredD．crashed
59．The author's help was so important to the woman becauseC．
A．her arrival could help to save her daughter．
B．her daughter woke up to greet her．
C．it was the last time she had seen her daughter．
D．her daughter let her realize her mistake．
60．What did the author learn from this experience？B
A．Everyone should help those who need help．
B．Always love and value those we love．
C．Mothers have the duty to protect their children．
D．Taking drugs can do great harm to people．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

4．She had a small operation on her feet in the summer，so she couldn't walk for the time being．

查看答案和解析>>

同步練習(xí)冊答案