12．The reports went missing in 2012and nobody ______ them since．（　　）
A．seesB．sawC．has seenD．had seen

分析 那些報(bào)告于2012年丟失了，從那以后沒(méi)有人再見(jiàn)過(guò)它們．

解答 答案C．本題主要考查動(dòng)詞時(shí)態(tài)．句意強(qiáng)調(diào)過(guò)去報(bào)告的丟失對(duì)現(xiàn)在的影響和結(jié)果就是再也沒(méi)人看到過(guò)那些報(bào)告，故用現(xiàn)在完成時(shí)．此題解題的關(guān)鍵詞是后面的since，此處意為：從那以后．這是現(xiàn)在完成時(shí)的標(biāo)志．故選C．

點(diǎn)評(píng) 時(shí)態(tài)題的考查關(guān)鍵是抓住句子的上下文含義和句中的時(shí)間狀語(yǔ)．要根據(jù)時(shí)間狀語(yǔ)來(lái)選擇合適的時(shí)態(tài)，在平時(shí)的學(xué)習(xí)中要注意積累有關(guān)時(shí)態(tài)的用法和各種時(shí)態(tài)的特殊之處．

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：2017屆廣東省潮州市高三第二次模擬考試英語(yǔ)試卷（解析版） 題型：完形填空

The cultures of the East and the West really distinguish from each other a lot. This is because the culture systems are two separate systems _________.

The origin of the eastern cultures is mainly from two countries: China and India. Both of the two cultures are gestated(孕育) by _______. In China, the mother river is the Yellow River_______the Indian one is the Hindu River. These two cultures were _______ for several thousand years and formed their own styles. Then in the Tang Dynasty of China, the Chinese culture_______went overseas to Japan, _______into the Japanese society and_______ the Japanese culture nowadays. Though a bit different from the Chinese one, it _______to the same system.

When the two mother rivers gave birth to the eastern culture, another famous culture was _______on the Mesopotamian Plain(美索不達(dá)米亞平原）—the Mesopotamian Civilization. This civilization later on developed into the cultures of Ancient Greece and Ancient Rome. And these two are well-known as the________of the European culture.__________ the Chinese culture, the European one also__________waters.When the colonists of England __________in America, their culture went with them over, the Atlantic Ocean. So the American culture doesn't ________from the European one a lot.

At the same time, the________of the language systems adds to the cultural differences. In the East, most languages belong to the pictographic (象形文字的) language while the Western languages are________based on the Latin system, for example, the one I’m using to write this paper.

Other factors like human race difference________ as well. However, ________the far distance and the steep areas between the East and West, the two cultures seldom________until recent centuries. ________, they grew up totally in their own ways with almost no-interference（干擾） from the other.

1.A. in all B. above all C. in no case D. on the whole

2.A. rivers B. lakes C. mountains D. plains

3.A. or B. for C. while D. when

4.A. improved B. developed C. created D. protected

5.A. gradually B. naturally C. suddenly D. quietly

6.A. changed B. mixed C. decided D. forced

7.A. expanded B. interrupted C. shaped D. influenced

8.A. comes B. belongs C. amounts D. adds

9.A. carried out B. given out C. brought up D. picked up

10.A. base B. sign C. result D. content

11.A. With B. Like C. Via D. Except

12.A. crossed B. formed C. affected D. spread

13.A. went up B. joined up C. settled down D. broke down

14.A. differ B. suffer C. result D. come

15.A. feature B. development C. appearance D. distinction

16.A. simply B. mostly C. properly D. partly

17.A. counts B. reduces C. lasts D. changes

18.A. in term of B. in case of C. due to D. as to

19.A. communicate B. distinguish C. transform D. display

20.A. However B. Furthermore C. Meanwhile D. Therefore

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：選擇題

3．Carl is studying        food science at college and hopes to open up        meat  processing factory of his own one day．（　�。�
A．/； aB．/；theC．the； aD．the； the

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：填空題

20．It was cold and dumpty the man pulled up his collat and put his hands to hisfrozen face（凍僵了的臉）．（freate）

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：填空題

7．Compare these/the two toothbrushes，（比較這兩把牙刷） and you'll find the purple one is softer．（compare）

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：選擇題

17．The visitors here are greatly impressed by the fact that_______ people from all walks of life are working hard for_____ new Jiangsu．（　�。�
A．不填； aB．不填；theC．the； aD．the； the

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：書(shū)面表達(dá)

4．On the first day of her work，Sally found that a class full of problems was waiting for her．Six teachers had quit before her．When she walked in to the classroom，it was chaos：two boys were fighting in the far corner，yet the rest of the class seemed not to notice them； some girls were chatting and some were running about； paper，food packages and other garbage were littered around…Just when she was about to speak，a student rushed in and pushed her aside!He was twenty minutes late!
Sally walked onto the platform，picked up a piece of chalk and wrote on the blackboard："Rule 1：We are family!"All students stopped to look at her．And she continued with Rule 2，Rule 3…In the following weeks，Sally worked out 10class rules and posted them on the walls of the classroom．She patiently explained all the rules to the students and require everyone to follow them．
Surprisingly，Sally was not driven out like the former teachers； instead，she won respect from the students．Over the year，she witnessed gradual change in the class．At the graduation ceremony，just as she expected，she was very proud to stand with a class of care，manners and confidence．

[寫(xiě)作內(nèi)容]
1．用約30個(gè)詞概括上文的主要內(nèi)容．
2．用約120個(gè)詞就班規(guī)談?wù)勀愕南敕ǎ瑑?nèi)容包括：
（1）你們班最突出的問(wèn)題是什么？
（2）針對(duì)該問(wèn)題你會(huì)設(shè)計(jì)一條什么班規(guī)？
（3）你認(rèn)為班規(guī)會(huì)帶來(lái)什么影響？
[寫(xiě)作要求]
（1）作文中可以使用親身經(jīng)歷或虛構(gòu)的故事，也可以參照閱讀材料的內(nèi)容，但不得直接引用原文的句子．
（2）作文中不得出現(xiàn)真實(shí)姓名和學(xué)校名稱．
[評(píng)分標(biāo)準(zhǔn)]
概括準(zhǔn)確，語(yǔ)言規(guī)范，內(nèi)容合適，篇章連貫．

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：選擇題

1．For many years，people __ electric ears．However，making them has been more difficult than predicted．（　�。�
A．had dreamed ofB．have dreamed ofC．dreamed ofD．dream of

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源： 題型：選擇題

2．--I'm sorry，but I don't quite follow you．Did you say you wanted to return on September 20？
--Sorry，I      myself clear．We want to return on October 20．（　�。�
A．hadn't madeB．wouldn't makeC．don't makeD．haven't made

查看答案和解析>>

同步練習(xí)冊(cè)答案