2．____caused the accident is still a complete mystery．（　　）
A．WhatB．ThatC．HowD．Where

分析 什么造成這起事故依然是個謎．

解答 答案：A
分析句式可知，"____caused the accident"是主語從句，在從句里缺少主語，所以用what引導．how和where在句子里做狀語，不符合．that引導主語從句不做成分，故答案選A．

點評 考生須掌握名詞性從句的特征，注意分析句子結(jié)構(gòu)并在具體 語境中靈活使用．

練習冊系列答案
相關(guān)習題

科目：高中英語 來源： 題型：填空題

15．Did you go to watch the football match held in thestadium（體育場）

查看答案和解析>>

科目：高中英語 來源： 題型：聽力題

13．A．﹩4.5．   B．﹩5．   C．﹩9．   D．﹩10．

查看答案和解析>>

科目：高中英語 來源： 題型：信息匹配

10．Coral reefs
       For millions of years，coral reefs have provided homes and food for thousands of different living things．Fish and sea birds share the reef with other sea creatures．Now these beautiful places are in danger．（36）CScientists have found that people and pollution have ruined more than one-fourth of the earth's coral reefs．Unless things change，all of the remaining reefs may die within your lifetime．
       Some people think that coral is stone because of its rough，hard surface．But coral is an animal!Tiny polyps （水螅體） form the coral reefs．（37）AThese colours come from the algae （海藻）  living inside the coral．Billions of coral polyps stick together．New ones grow on the dead corals．This happens year after year．Over time，the coral builds up a reef．The reef rises from the ocean floor until it almost reaches the sea's surface．It takes coral 500，000 years to build a huge reef．（38）FThe coral reefs have been harmed in different ways．People have broken off pieces of coral．They wanted to sell or keep them．To catch more fish，people have dropped sticks of dynamite （炸藥） into the water．（39）EWater pollution has encouraged overgrowth of the sea plants that grow near coral reefs．They block out the sunlight that the algae need．（40）DWarm water kills the algae．When the algae die，the coral loses both its food and its color．The coral turns white and dies．Scientists call this coral bleaching （珊瑚白化）．The bleached part of the coral reef cannot recover．

A．They come in many colours．
B．This has blown up parts of the reefs．
C．So are all the sea plants and animals that depend on them．
D．The worst problem is the heating up of the world's oceans．
E．Coral reefs are experiencing a rapid increase in most locations．
F．However，it has taken human beings less than 100 years to destroy the reefs．
G．They cover less than 1% of the ocean floor，but support about 25% of sea creatures．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

17．It seemed that the water        ．（　　）
A．was to blameB．was to be blamed
C．should blameD．was blamed

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

7．Teen star Xu Shilin made Chinese sports history on Tuesday when she officially moved on the top of the International Tennis Federation （ITF） world junior rankings for girls'aged 18-and-under at last week's Osaka Mayor's Cup in Japan．"I am very proud to become the first Chinese player to earn the number one world junior ranking，"said Xu，who has been Asia's top-ranked junior player during the past two years．"The 2014 season is not over yet，so I need to stay focused and continue to play like I did in Japan．Osaka was a really incredible week as I played my style of tennis，keeping the points short and always being aggressive．"
    Xu lives and trains in Shenzhen with her father and coach Xu Yang．Xu has three more tournaments （比賽） to finish the 2014 tennis season．Xu will attempt to defend her Asian titles in singles and doubles in Korea during November 10-16，and then finish the season during the first two weeks of December playing two world-class events-Eddie Herr and Orange Bowl--in Florida，USA．
    As a junior player，Xu was limited to playing 12 professional tournaments in 2014 but has still managed to climb to number 414 in the latest WTA world rankings，one of the highest rankings for a junior player．
    Returning to Florida will be familiar playing conditions for Xu，who lived in the US state with her family while training full-time at various tennis academies during ages 8 to 13，before returning to China in 2012．Remaining outside of the state-supported sports training system，Xu's father Xu Yang has been her full-time coach since putting a racquet （球拍） in her hand at age three．
29．Judging from the second paragraph，we knowC．
A．Xu Shilin must have been relaxed when playing in Osaka
B．Xu Shilin can have a complete relaxation after return from Osaka
C．Xu Shilin will be fully prepared for the coming competition
D．Xu Shilin has build her confidence after the competition in Osaka
30．Xu Shilin's last world-class event this year will be held inD．
A．Shenzhen       B．Osaka       C．Korea        D．Florida
31．Returning to Florida will be familiar playing conditions for Xu Shilin，becauseB．
A．She was born and brought up there 
B．She started to receive full-time training there
C．She rose to fame in this condition   
D．She was familiar with the living conditions
32．What might be the best title for the passage？A
A．China's Xu Shilin becomes World's No.1 junior tennis player．
B．The International Tennis Federation saw Xu Shilin's growth．
C．China's Xu Shilin and her coach．
D．China's Xu Shilin，a great tennis player．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

14．聽到他成功地通過了考試的消息，老師如釋重負地笑了．（succeed，relief）Hearing the news that he succeeded in passing the exam，the teacher smiled in relief．．

查看答案和解析>>

科目：高中英語 來源： 題型：填空題

11．Prisoners reportedbeingregularlyabusedby their guards．
囚犯們舉報說他們遭到了看守經(jīng)常性的虐待．

查看答案和解析>>

科目：高中英語 來源： 題型：選擇題

12．Though Betty doesn't like her present job，she wants to ________ it until she gets another one．（　　）
A．hang up toB．hang on toC．hang off toD．hang back to

查看答案和解析>>

同步練習冊答案