过去完成时专项练习(英文)

1.When I got to the top of the mountain,the sun.A.has risen B.rose C.had risen D.is rising2.W e atthe airportby seven oclock yesterday.A.had arrived B.have arrivedC.would arrive D.arrived3.Tom wasdisappointed tofind thatm ostofthe guests when heatthe party.A.left;had arrived B.left;arrivedC.had left;had arrived D.had left;arrived4.AfterI forsix hours,I out.A.had walked;had been tired B.have walked;was tiredC.had walked;would be tired D.had walked;was tired5.—H ow long each otherbefore…     

动词短语专题练习(英文)

1. Will you __ my article to find out whether I' we made any mistakes? A. look at B. look up C. look through D. look! on 2. Franklin __ learning the printer's trade at an early age. A. set off B. set about C. set out D. set up     

时态练与析(续)

21.Great changes ____ in the City of Guangzhou since 1980, and a lot of big buildings ____.A.were taken place, were set up B.have taken place, have set upC.have taken place, have been set up D.have been taken place, have been set up22.The pen ____quite smoothly.A.writes B.is writing C.can be written D.is written23.Water ____ into steam if it is heated to its boiling鄄point.A.is going to be turned B.will be turned C.has been turned D.is being turned24.—I saw that new film yesterday. …     

(新目标)七年级下Unit 12测试题(英文)

Ⅰ.单项选择 1. I know that you ____ Hong Kong in five hours. A. arrive B. arrive in C. will arrive in D. will arrive to 2. Let me ____ you how ____ to our home. A. to tell; to get B. tell; to get C. to tell; arrive D. tell; arrive 3. ——Does he often go     

高中一册第6单元练习(英文)

Ⅰ.单项填空 1. All that can be done ____. A. are done B. were doing C. have been done D. has been done 2. ——____ will the bus arrive? ——In an hour. A. How fast B. How often C. How soon D. How long 3. I wonEt believe it ____ I have seen it with my own     

2007考点预测40题(英文)

1. ——When did you arrive? ——I arrived ____ the morning of April 18. A. in B. at C. on D. by 2. The grandfather was ____ to see his grandson playing ____. A. happy; happy B. happy; happily C. happily; happily D. happily; happy 3. The moon is ____ the s…     

主谓一致专练(英文)

1. Both Lily and I going to visit the Great Wall tomorrow. A. is B. are C. am D. be 2. The teacher and writer ready to give us a talk next week. A. is B. are C. was D. were 3. As the saying goes,“All work and no play Jack a dull boy.” A. make B. makes C. made D. is made 4. Look, every boy and every girl in the classroom. A. is studying B. are studying C. study D. studies 5. The number of the students in our school smaller than yours.A. is B. are C. were D. have been 6. She as well…     

高二英语单元检测(Units 3～4)

Unit3 1.单项坡空1 .It，5 time for suPper now.Please_your books aside 50 that we ean use the table for suPPer. A .take B.bring C.set D.ean了2 .When she retumed home，she found the window open and something A .to steal B.to be stolen C.missed D.stolen .…﹄     

阅读理解高分训练

（A）
Apparently, we are safe neither at home nor in the business office. We use water in both places, but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects. These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one＇s house. They are released（set free） from water by daily actions like water running out of tap, spraying from garden pipes, or splashing in dishwashers and washing machines. As the water is moving, these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.     

新目标八年级(上)Unit 10练习(英文)

Ⅰ.单项选择 1. Her sister was born ____ the evening of March 4, 1985. A. on B. in C. at D. until 2. Next month the students in my class ____ a new English teacher. A. are having B. are going to have C. have D. had 3. The girl said she wanted to find a job ____ a nurse in the hospital. A. to be B. being C. as D. like 4. They are ____ the boy everywhere but they cannot find him. A. looking after B. watching for C. seeing at D. looking for 5. Yesterday we ____ to the movies and ____ Peter…     

新目标八年级(上)Unit7练习(英文)

Ⅰ.单项选择 1. ____ cinnamon do we need to make fruit salad? A. How many B. How much C. How far D. How often 2. Tom, pour the milk ____ the blender. A. at B. to C. into D. from 3. Mum is ____ two apples, two bananas and a carrot. A. cut B. cutting C. cuts up D. cutting up 4. When I get home, I ____ the TV first. A. turn B. open C. turn on D. surf 5. When the bus comes, we ____ getting on the bus. A. take turns B. turn on C. in order D. orderly 6. They!re thinking of a recipe ____ a…     

高中一册第10单元练习(英文)

Ⅰ.单项选择1.How long have you____chopsticks?A.used to use B.got used to usingC.been used to using D.been used to use2.Many of the earth=s plants and animals have already____,and severalother species are endangered.A.died away B.died out C.died off D.died up3.Many animals and plants,which couldn=t____the sudden change ofthe climate,died out.Dinosaurs are one such example.A.suit to B.keep to C.get to D.adapt to4.After10years of hard time,the young lady has turned movie star,____she dreamed…     

高中一册第22单元练习(英文)

Ⅰ.单项选择。 1. ——Did your sister pass the exam? ——She failed and is in low spirits. ——I8m sorry for her. ——____. A. Thank you B. You8re welcome C. I would think so D. Never mind 2. ——Can you tell me the time for the train for Beijing tomorrow morning? ——Well, the train ____ here at 7:10 a.m. and ____ at Beijing at 4:00 p.m. A. leaves; arrives B. will leave; arrive C. is leaving; arriving D. will leave; will arrive 3. ____ I admit that the problems are difficult, I don8t ag…     

高二英语单元检测(Units 5～6)(英文)

Unit 5 Ⅰ. 单项选择 A. 课本知识 1. His bad health is a great for him to get a well-paid job. A. advantage B. error C. disadvantage D. fault 2. Listening to music has a calming on her. A. cause B. influence C. reason D. result 3. We are working hard to the lost time. A. make to B. make up for C. set up D. make into 4. Most children are excited about the of Children"s Day. A. come B. arrive C. appreciate D. approach 5. —I"m very with my own cooking. —It looks nice and smells delicious…     

Redesign of a conformal boundary recovery algorithm for 3D Delaunay triangulation

INTRODUCTION The Delaunay criterion provides a good way to triangulate a given point set. However, the prede- fined point connectivity is not certainly preserved during the triangulation, and some boundary con- straints may be lost in the resulting triangulation. Therefore, the recovery of missing boundaries be- comes an important topic. 2D boundary recovery problem turns out to be much easier to resolve in theory and practice than its 3D counterpart. It has been shown that there are cer…     

高二英语上学期期末复习检测题

C .an extra job has been taken D .John has taken an extra job27.Hearing the news,he rushed out,__ the book on the table and disappeared into the distanee. A .left:lay open B.leaving:lying open C .leaving:lie open D.left;lay oPened28.Little_that we were wa…     

高考英语模拟试题(四)(英文)

Ⅰ.单项填空(共 15 小题; 每小题 1 分, 满分 15 分) 1. We must manage to do our work better with ____ people. A. less money and few B. less money and fewer C. little money and less D. few money and less 2. It is not easy for me to find out our formal teaching building because the school ____ so much since I left. A. is changing B. has changed C. had changed D. should have changed 3. Vegetables are cheap ____ when they are in season. A. to buy B. to buy them C. to be bought D. buying them 4. …     

A Research on Learner Retention and Learning Support

Why do some of adult learners successfully accomplish their learning while the others drop out？ This has been an important question in the field of adult learning. For a long time researchers has been exploring this subject around learning barriers as well as motivations. Not until lately did some of adult and distance scholars start to pay attention to the question of why some of the adult students could successfully push through their learning process even if they are in a disadvantaged situation. Thus, Learner Retention has become one of the important themes to discuss in order to understand more about how to assist learners to persist through their learning. The main purpose of this paper is to explore how adult learners persist through their learning and factors that might have influences on them. Adult teachers and NOU students （including those who already graduated and those who dropped out） were interviewed and surveyed. Concluding from those data and content of interviews, this paper set a model that describes how adult learner retain through their learning process and some suggestions are made for better student learning support policies.     

高中一册第12单元练习(英文)

Ⅰ.单项选择1.We are living in an age____many things are done on computer.A.which B.that C.whose D.when2.The idea puzzled me so much that I stopped for a few seconds to tryto____.A.make it out B.make it off C.make it up D.make it over3.——What happened to the priceless works of art?——____.A.They were destroyed in the earthquakeB.The earthquake was destroying themC.They destroyed in the earthquakeD.The earthquake destroyed them4.____everyone knows,China is a developing country belongin…     

高二(下)英语同步检测题(Units 22～24)(英文)

I.单项填空1.He looks so tired and sleepy;he__ up last night.A.would have stayed B.couldn’t have stayedC.could have stayed D.must have stayed2.Please open the windows to__somefresh air.A.let in B.let out C.enter D.bringin3.__at home,he got down to his own business.A.When arrive B.On his arrlval C.Arrived D.On reaching