模拟测试题1(50道)答案解析

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初中PEP3年级英语模拟(答案及解析)

初中PEP3年级英语模拟(答案及解析)(共50道题)下面有答案和解题分析一、综合题1.Which of the following is the correct form of the adjective "happy" in the superlative degree?A. HappiestB. HappyestC. More happyD. Most happy2.Which of the following sentences is correct?A. She is more smarter than him.B. She is smarter than him.C. She is more smart than him.D. She is more smartest than him.3.Choose the correct verb tense: They _______ to the beach last summer.A. goB. goneC. will goD. went4.When I ______ (be) a child, I ______ (often/play) in the park with my friends.5.Which of the following sentences is in the correct word order?A. Quickly runs he.B. Runs quickly he.C. He runs quickly.D. Quickly he runs.6.Which of the following sentences is correct?A. They are visiting the museum now.B. They visit the museum now.C. They visited the museum now.D. They visiting the museum now.7.Which sentence is correct for asking a question in the past tense?A. Did you went to the park yesterday?B. Did you go to the park yesterday?C. Did you goes to the park yesterday?D. Did you going to the park yesterday?8.Choose the correct sentence:A. I can to play the piano.B. I can play the piano.C. I can played the piano.D. I can playing the piano.9.What is the past tense of "run"?A. RunsB. RunningC. RanD. Runned10.Which of the following sentences uses the correct preposition?A. I am interested on history.B. I am interested to history.C. I am interested in history.D. I am interested for history.11.They __________ (work) on their project all day yesterday, and they __________ (make) a lot of progressBy the end of the day, they __________ (finish) most of the tasks.12.Which of the following sentences is correct?A. He can play the piano good.B. He can play the piano well.C. He can play the piano better.D. He can play the piano best.13.What is the opposite of "cold"?A. HotB. WarmC. FreezingD. Cool14.I ______ (study) hard, so I’m sure I ______ (pass) the exam.15.I __________ (1) a small family. There __________ (2) four people in my family: my father, my mother, my sister, and me. My father __________ (3) a teacher, and my mother __________ (4) a doctor. My sister __________ (5) a student, and she__________ (6) very good at drawing. We __________ (7) enjoy spending time together. On weekends, we __________ (8) go out for a walk or have a meal in a restaurant. I__________ (9) love my family very much.16.My mother always __________ (1) me to be kind to others. She __________ (2) that kindness __________ (3) in making friends. She often __________ (4) me stories about how people __________ (5) kindness in their lives. Last week, I __________ (6) an old man on the street who __________ (7) in need of help. I __________ (8) him to the nearest bus stop and __________ (9) him with his bags. He __________ (10) me for my kindness, and I __________ (11) it made me feel happy.17.Which of the following sentences is in the past continuous tense?A. I read a book yesterday.B. I was reading a book yesterday.C. I will read a book tomorrow.D. I have read a book.18.Which of the following is the correct use of “much” with uncountable nouns?A. I don’t have much books.B. I don’t have much friends.C. I don’t have much money.D. I don’t have much pencils.19.Which of the following is the correct sentence in the present simple tense?A. I am studying English every day.B. I study English every day.C. I studied English every day.D. I will study English every day.20.If I __________ (1) (have) a chance to visit Paris, I __________ (2) (go) to see the Eiffel Tower. I __________ (3) (also) like to try French food and __________ (4) (learn) some basic French phrases. I __________ (5) (be) very excited about the possibility of traveling to such a beautiful city.21.Which sentence is correct?A. He is always late, and he always forgets his homework.B. He is always late, and always he forgets his homework.C. He is always late, and forgets he always his homework.D. He always late, and he always forget his homework.22.Which word is a verb?A. QuicklyB. HappinessC. DanceD. Big23.I ______ (be) so tired yesterday because I ______ (stay) up too late the night beforeI ______ (try) to take a nap in the afternoon, but I ______ (not/sleep) wellLater, I ______ (decide) to go for a walk, and the fresh air ______ (make) me feel much better.24.Which sentence is correct?A. She is more smarter than her brother.B. She is more smart than her brother.C. She is smarter than her brother.D. She is smartest than her brother.25.Which of the following sentences uses "too" correctly?A. This book is too expensive.B. This book is very too expensive.C. This book is so too expensive.D. This book is too much expensive.26.This time last year, I __________ (study) in New YorkI __________ (have) a great time, and I __________ (make) many new friendsI __________ (learn) a lot about American culture, and I __________ (travel) to several interesting placesI __________ (feel) very happy during my stay there.27.Which of the following sentences is in the correct past perfect tense?A. I had finished my homework before he came.B. I finished my homework before he came.C. I was finishing my homework before he came.D. I have finished my homework before he came.28.What is the correct form of the verb in the sentence: "I _______ to the party yesterday."A. goB. wentC. goingD. will go29.Choose the correct answer. Tom _______ his homework at the moment.A. is doingB. doesC. didD. do30.Which sentence correctly uses "since" or "for"?A. I have known her for five years.B. I have known her since five years.C. I have known her since five years ago.D. I have known her for five year.31.Which of the following sentences is in the future tense?A. I am reading a book now.B. I read a book every day.C. I will read a book tomorrow.D. I have read a book already.32.Which of the following sentences is correct?A. He is better than me in tennis.B. He is best than me in tennis.C. He is better than I in tennis.D. He is more better than me in tennis.33.Which of the following is the correct form of “to be” for the subject “he”?A. He amB. He isC. He areD. He be34.Which sentence correctly uses the article "a" or "an"?A. I want to eat an apple.B. I want to eat a apple.C. I want to eat an orange.D. I want to eat a orange.35.What is the opposite of “difficult”?A. easyB. boringC. interestingD. tired36.Choose the correct verb tense to complete the sentence: She _______ to the park every weekend.A. goesB. wentC. is goingD. has gone37.Choose the correct answer. They _______ to the supermarket right now.A. goB. are goingC. wentD. will go38.Which sentence is in the correct future tense?A. He is going to the park tomorrow.B. He will going to the park tomorrow.C. He is go to the park tomorrow.D. He will go to the park tomorrow.39.Choose the correct form of the verb in the sentence: "She __________ to the store last night."A. GoB. WentC. GoingD. Goes40.Many students like to play basketball, ______ they don’t have enoug h time because of their homework.41.Which sentence correctly uses the future tense to express a decision made at the moment of speaking?A. I am going to watch a movie later.B. I will watch a movie later.C. I was watching a movie later.D. I watched a movie later.42.Which of the following sentences is in the correct past perfect tense?A. She had already finished her homework when I called.B. She has already finished her homework when I called.C. She had already finished her homework when I call.D. She had already finish her homework when I called.43.Which of the following sentences is in the present perfect tense?A. I have seen that movie before.B. I see that movie before.C. I saw that movie before.D. I will see that movie before.44.Which of the following sentences is a question in the past simple tense?A. Did you went to the store?B. Did you go to the store?C. Do you went to the store?D. You went to the store?45.Which sentence uses the word "since" correctly?A. I have known him since five years.B. I have known him since five years ago.C.I have known him for five years. D. I have known him since five years ago.46.Choose the correct form of the verb: “The students __________ for the exam now.”A. studyB. studiesC. are studyingD. studied47.Which sentence is in the correct form of the past simple tense?A. He went to the park yesterday.B. He going to the park yesterday.C. He goes to the park yesterday.D. He is going to the park yesterday.48.Which sentence is correct in using "too"?A. This box is too heavy for me to lift.B. This box is heavy too for me to lift.C. This box is for me too heavy to lift.D. This box too is heavy for me to lift.49.By the time I __________ (1) (get) to the cinema, the movie __________ (2) (already/start). I __________ (3) (feel) a little upset because I __________ (4) (wait) for it to begin for a long time. However, I __________ (5) (decide) to stay and watch the rest of the movie. It __________ (6) (be) amazing, and I __________ (7) (enjoy) every minute of it.50.They ______ (wait) for us when we ______ (arrive).(答案及解释)。

50道情商测试题答案(3篇)

1. 你容易因为别人的批评而感到沮丧吗？A. 是B. 否答案：B2. 你如何处理与同事之间的冲突？A. 试图逃避B. 尝试沟通解决问题答案：B3. 当你感到压力时，你会如何应对？A. 放弃任务B. 采取积极措施，寻求解决方案答案：B4. 你是否擅长在团队中与他人协作？A. 是B. 否答案：A5. 你在公共场合发言时，是否会感到紧张？A. 是B. 否答案：B6. 你认为自己的情绪管理能力如何？A. 很好答案：A7. 你是否善于倾听他人的意见？A. 是B. 否答案：A8. 当你遇到挫折时，你会如何调整自己的心态？A. 自我安慰，寻找原因B. 抱怨，逃避答案：A9. 你在与人交往时，是否能够做到尊重对方？A. 是B. 否答案：A10. 你是否善于发现他人的优点？A. 是B. 否答案：A11. 当你发现自己犯错时，你会如何处理？A. 面对错误，寻求改进B. 推卸责任，逃避答案：A12. 你是否擅长在紧张的环境中保持冷静？B. 否答案：A13. 你在与人沟通时，是否会注意对方的非语言信息？A. 是B. 否答案：A14. 你是否善于发现他人的情绪变化？A. 是B. 否答案：A15. 当你感到愤怒时，你会如何控制自己的情绪？A. 深呼吸，冷静思考B. 爆发情绪，伤害他人答案：A16. 你是否善于在冲突中寻求双赢的解决方案？A. 是B. 否答案：A17. 你在团队中，是否能够做到关心他人？A. 是B. 否答案：A18. 你在与人交往时，是否能够做到真诚？A. 是B. 否答案：A19. 你是否善于处理人际关系中的复杂问题？A. 是B. 否答案：A20. 当你感到沮丧时，你会如何调整自己的心态？A. 寻找原因，积极应对B. 放弃，逃避答案：A21. 你在与人交往时，是否能够做到宽容？A. 是B. 否答案：A22. 你是否善于在压力下保持乐观？A. 是B. 否答案：A23. 你在与人沟通时，是否能够做到倾听？A. 是B. 否24. 你是否善于发现他人的需求？A. 是B. 否答案：A25. 当你遇到困难时，你会如何寻求帮助？A. 向他人求助，共同解决问题B. 自我封闭，独自承受答案：A26. 你在与人交往时，是否能够做到诚实？A. 是B. 否答案：A27. 你是否善于在冲突中保持冷静？A. 是B. 否答案：A28. 你在团队中，是否能够做到关心他人的感受？A. 是B. 否答案：A29. 你在与人交往时，是否能够做到理解他人？A. 是答案：A30. 当你感到焦虑时，你会如何调整自己的心态？A. 深呼吸，冷静思考B. 抱怨，逃避答案：A31. 你是否善于发现他人的优点和长处？A. 是B. 否答案：A32. 你在团队中，是否能够做到关心他人的需求？A. 是B. 否答案：A33. 你在与人交往时，是否能够做到尊重对方的意见？A. 是B. 否答案：A34. 你是否善于在压力下保持自信？A. 是B. 否答案：A35. 你在与人沟通时，是否能够做到表达自己的观点？B. 否答案：A36. 你是否善于发现他人的情绪变化，并给予关心？A. 是B. 否答案：A37. 当你感到沮丧时，你会如何调整自己的心态？A. 寻找原因，积极应对B. 放弃，逃避答案：A38. 你在与人交往时，是否能够做到宽容他人？A. 是B. 否答案：A39. 你是否善于在压力下保持乐观？A. 是B. 否答案：A40. 你在与人沟通时，是否能够做到倾听？A. 是B. 否答案：A41. 你是否善于发现他人的需求？A. 是B. 否答案：A42. 当你遇到困难时，你会如何寻求帮助？A. 向他人求助，共同解决问题B. 自我封闭，独自承受答案：A43. 你在与人交往时，是否能够做到诚实？A. 是B. 否答案：A44. 你是否善于在冲突中保持冷静？A. 是B. 否答案：A45. 你在团队中，是否能够做到关心他人的感受？A. 是B. 否答案：A46. 你在与人交往时，是否能够做到理解他人？A. 是B. 否答案：A47. 当你感到焦虑时，你会如何调整自己的心态？A. 深呼吸，冷静思考B. 抱怨，逃避答案：A48. 你是否善于发现他人的优点和长处？A. 是B. 否答案：A49. 你在团队中，是否能够做到关心他人的需求？A. 是B. 否答案：A50. 你在与人交往时，是否能够做到尊重对方的意见？A. 是B. 否答案：A通过以上50道情商测试题，您可以对自身的情商水平有一个大致的了解。

2024摩托车考试科目一模拟试题及答案50道

2024摩托车考试科目一模拟试题及答案50道1、驾驶机动车在隧道、陡坡等特殊路段不得超车。

A、正确B、错误答案：A2、这个标志是何含义？A、允许长时停车B、允许临时停车C、禁止长时停车D、禁止停放车辆答案：D3、驾驶机动车在下列哪种情形下不能超越前车？A、前车减速让行B、前车正在左转弯C、前车靠边停车D、前车正在右转弯答案：B4、这个标志是何含义？A、注意残疾人B、残疾人出入口C、残疾人休息处D、残疾人专用通道答案：A5、这个标志是何含义？A、人行横道B、注意行人C、注意儿童D、学校区域答案：B6、摩托车不得牵引车辆或者被其他车辆牵引。

A、正确B、错误答案：A7、漫水道路行车时，要挂高速挡，快速通过。

A、正确B、错误答案：B8、轻便摩托车只允许乘载学龄前儿童。

A、正确B、错误答案：B9、同车道行驶的车辆前方遇到下列哪种车辆不得超车？A、超载大型货车B、执行任务的消防车C、大型客车D、中型客车答案：B10、这个标志是何含义？A、注意行人B、人行横道C、注意儿童D、学校区域答案：C11、这个标志是何含义？A、禁止直行和向左转弯B、禁止直行和向左变道C、允许直行和向左变道D、禁止直行和向右转弯答案：D12、机动车在道路上发生故障，需要停车排除时，驾驶人应该怎么办？A、就地停车排除故障B、开启近光灯或雾灯C、将车停到不妨碍交通的地方D、将车停在道路中间答案：C13、涉水驾驶要保持车速均匀有足够动力，避免停留。

A、正确B、错误答案：A14、驾驶机动车遇到成群青少年绕过路边停放的机动车时，要主动减速让行。

A、正确B、错误答案：A15、夜间驾驶机动车在窄路或者窄桥遇自行车对向驶来时，要怎样使用灯光？A、连续变换远、近光灯B、使用示廓灯C、使用远光灯D、使用近光灯答案：D16、行车中当机动车突然爆胎时，驾驶人切忌慌乱中急踏制动踏板，尽量采用抢挂低速档的方法，利用发动机制动使机动车减速。

A、正确B、错误答案：A17、机动车遇有急弯路时要在进入弯路后减速。

人教版小学五年级下册英语模拟(答案及解析)

人教版小学五年级下册英语模拟(答案及解析)(共50道题)下面有答案和解题分析一、综合题1.We ______ (have) a party at home last Friday. It ______ (be) a birthday party for my friend. Many people ______ (come), and we ______ (eat) cake and pizza. After the party, we ______ (play) music and ______ (dance) until late.2.Which of these is used to drink water?A. PlateB. SpoonC. CupD. Fork3.Lucy is at the library. She is looking for a __________ (book) about __________ (dinosaurs). She finds a __________ (book) on the shelf and starts reading about a__________ (Trex). Lucy enjoys learning about __________ (dinosaurs) because they are very __________ (interesting).4.My parents always ______ (cook) dinner at home. Last night, they ______ (cook) spaghetti. It ______ (taste) so good that I ______ (ask) for more.5.He _______ (not go) to the zoo on Sundays.6.She _______ (like) to play with her dog.7.We _______ (have) English class every Tuesday.8.They _______ (go) to school by bus.9.The students _______ (study) in the classroom.10.I __________ (1) study English every day. I __________ (2) listen to English songs, __________ (3) read English books, and __________ (4) write English sentences. It__________ (5) fun and helpful for me to learn English.11.How do you say "你好" in English?A. HelloB. GoodbyeC. Thank youD. Sorry12.My brother _______ (play) the guitar in the evening.13.How many days are in a week?A. FiveB. SixC. SevenD. Eight14.He _______ (write) a letter right now.st night, we ______ (watch) a movie at home. My parents ______ (make) popcorn, and my brother and I ______ (sit) on the couch. We ______ (enjoy) the movie a lot, and after it ______ (finish), we ______ (talk) about the story.16.We _______ (not/play) soccer every day.17.We _______ (be) good friends.18.I _______ (visit) my grandmother tomorrow.19.Which sentence uses the adjective correctly?A. She is a smart girl.B. She is a girl smart.C. She smart is girl.D. She is smart girl.20.We _______ lunch at school every day.21.He _______ (is / are / am) playing basketball right now.22.What do you use to open a door?A. KnifeB. KeyC. RulerD. Scissors23.He _______ (read) a book at the moment.24.They _______ (watch/watches) TV after school.25.He _______ not like to eat vegetables.26.We _______ (play) table tennis last Saturday.27.She _______ (go) to the market tomorrow.28.She _______ (eat) an apple now.29.I __________ (1) to my friend’s birthday party last weekend. It __________ (2) very fun! We __________ (3) cake and ice cream, and we __________ (4) games. My friend __________ (5) a big present. I __________ (6) to go again next year.30.Which of these is used to clean?A. BroomB. ChairC. TableD. Plate31.They _______ (not/understand) the question.32.We _______ (play) basketball after school.33.Which of these is a holiday?A. JanuaryB. ChristmasC. WinterD. Monday34.I _______ (do/does) my homework in the evening.35.My brother _______ (play/plays) football every day.36.Sarah is going to visit her aunt. She is going to take the __________ (1) to the city. Sarah packs her __________ (2) and makes sure she has her __________ (3). When she arrives, her aunt greets her and they go to the __________ (4) for lunch. Sarah loves visiting her aunt because they always have __________ (5).37.They _______ (eat) dinner at 6 o’clock.38.We _______ (go) to school by bike every day.39.Which animal can fly?A. FishB. DogC. BirdD. Lion40.Which of these is a vegetable?A. CarrotB. OrangeC. BananaD. Apple41.Which one is a sport?A. SoccerB. ReadingC. SleepingD. Watching TV42.Which of these is a mammal?A. FishB. DogC. BirdD. Reptile43.What do you use to clean your teeth?A. BrushB. SpoonC. PlateD. Knife44.Which animal barks?A. CatB. BirdC. DogD. Cow45.My brother _______ (watch) TV in the evening.46.It’s very cold outside today. I ______ (wear) my warm jacket to school because I don’t want to catch a cold.47.What is the opposite of "high"?A. LowB. ShortC. TallD. Deep48.Which of these is a month of the year?A. JanuaryB. SpoonC. PlateD. Chair49.Which of the following animals is known for its long neck?A. GiraffeB. ElephantC. LionD. Dog50.We _______ (not) like carrots.(答案及解释)。

小学PEP四年级英语模拟[(]答案和解析]

小学PEP四年级英语模拟[(]答案和解析](共50道题)下面有答案和解题分析一、综合题1.My best friend, Lily, is very __________. She is always __________ and makes me laugh. We like to play __________ together after school. Sometimes, we play__________ at the park, and other times, we like to go to the __________ to buy ice cream. Lily’s favorite color is __________, and she always wears __________ clothes. I think she is a very __________ person, and I am happy to have her as my friend.2.I _______ (not/like) math.3.My friend ______ (play) the piano very well. He ______ (practice) every day after school. Yesterday, he ______ (play) a beautiful song at the school concert. Everyone______ (clap) for him. I ______ (hope) I can play the piano as well as him someday.4.She _______ (play) basketball with her friends now.5.I _______ (like) apples and bananas.6.She _______ (wear) a red dress today.7.They _______ (play) in the park every weekend.8.We _______ dinner at home tonight.9.I ______ (eat) breakfast at 7:30 a.m. this morning. After that, I ______ (brush) my teeth and ______ (get) dressed. Then, I ______ (leave) home to go to school. I ______ (arrive) at school on time, and I ______ (start) my first lesson.10.We _______ (eat) dinner at 6:00 PM.11.He _______ (do / does / did) not like eating vegetables.12.We _______ (not) watch TV in the morning.13.Which of these is a holiday?A. ChristmasB. SummerC. TuesdayD. Green14.David is studying for his math test. He needs to learn how to add and subtract__________ and __________. Yesterday, his teacher gave the class a __________ to help them practice. David thinks the test will be __________, but he is confident because he has been studying hard. His best friend, Jack, is also studying with him. They are both __________, and they help each other with difficult problems. After the test, David plans to treat himself to a __________.15.Every Saturday, my family ________ (go) to the market. We ________ (buy) fresh vegetables, fruits, and other food. My mom ________ (like) to cook healthy meals, and I ________ (help) her in the kitchen. Last weekend, we ________ (make) a big salad for lunch.16.Which of these is used for cooking?A. StoveB. ChairC. BedD. Television17.What do we drink in the morning?A. SoupB. WaterC. MilkD. Pizza18.They _______ (watch) a movie right now.19.She _______ (have) a birthday party next week.20.He _______ (run) in the park every morning.21.We _______ (study) for the test right now.22.Which of these is a shape?A. SquareB. SpoonC. TableD. Dog23.The children _______ (have) lunch now.24.We ________ (take) the bus to school.25.She _______ (sing) a song every morning.26.I _______ (help) my sister with her homework.27.I __________ (look) out of the window and __________ (see) that it __________ (snow). I __________ (put) on my coat and __________ (go) outside to play. My friends __________ (be) already in the yard, and we __________ (build) a snowman. It__________ (be) a lot of fun!28.What do we use to write?A. SpoonB. ForkC. PenD. Plate29.They _______ (not, play) outside because it’s raining.30.My dog __________ (love) running in the park. Every morning, we __________ (walk) to the park, and he __________ (play) with other dogs. I __________ (take) him there because he __________ (need) exercise every day.31.My family _______ (plan) a trip to the countryside this weekend. We _______ (leave) early in the morning and _______ (arrive) at the farmhouse by noon. After we_______ (unpack) our bags, we _______ (decide) to go for a walk in the forest. We_______ (see) many animals, including birds and squirrels. Later, we _______ (return) to the farmhouse and _______ (have) a nice lunch together. In the afternoon, we _______ (go) fishing by the lake. My brother _______ (catch) a big fish, and I _______ (take) a photo of it. We _______ (spend) the whole day outdoors, and when the sun _______ (set), we _______ (sit) on the porch and _______ (watch) the stars. It _______ (be) a wonderful day.32.My friend _______ (speak) Chinese very well.33.Mia is at the beach. She wears her __________ (1) and carries her __________ (2) to the sand. Mia loves to build __________ (3) with her brother, Tom. They use a__________ (4) and a __________ (5) to shape the sand. After building, they go swimming in the __________ (6). Mia and Tom have __________ (7) together.34.I _______ (not/go) to the park on Sundays.35.They _______ (is / are / am) running in the park.36.What is the opposite of "young"?A. OldB. TallC. ShortD. Fast37.I _______ (go) to bed at 9:00 p.m. every night.38.Tom __________ (study) English every day. He __________ (like) to read books and __________ (watch) English movies. Yesterday, he __________ (read) an interesting book about space. After finishing the book, he __________ (feel) very excited and__________ (tell) his friend about it. He __________ (plan) to watch a documentary about space tonight.39.My friends _______ (like) to sing songs.40.He _______ (is / are / am) a doctor.41.We ______ (watch) a movie last night. It ______ (be) a funny comedy, and we______ (laugh) a lot. My dad ______ (buy) some popcorn, and we ______ (eat) it while watching the film. After the movie, we ______ (talk) about our favorite parts and ______ (decide) to watch it again soon.42.Which one is a number?A. OneB. PlateC. SpoonD. Chair43.Which of these is used to make a call?A. PhoneB. PlateC. BookD. Spoon44.What is the opposite of "cold"?A. WarmB. TallC. SlowD. Big45.Which of these is a tool?A. SpoonB. PlateC. HammerD. Chair46.What color is the grass?A. BlueB. RedC. GreenD. Yellow47.We _______ (eat) fruit every day.48.She _______ (help) me with my homework yesterday.49.She _______ (study) English every day.50.What do you use to write on paper?A. PenB. BookC. KnifeD. Spoon(答案及解释)。

小学六年级数学应用题50道附参考答案【模拟题】(1)

小学六年级数学应用题50道一.解答题(共50题，共265分)1.有两根同样长2米的绳子，第一根用去米，第二根用去它的，用你喜欢的方式说明哪一根用去的多。

2.淘气看一本故事书，已经看了60％，还剩下80页。

全书共有多少页?（用方程解答）3.一个正方形和一个圆形的周长相等，正方形的边长是6.28米，这个圆形的半径是多少米？4.一个长方形，它的长和宽的比是3:2，如果长增加2米，这个新长方形的周长是24米，求新长方形的长与宽的比。

5.圆形的花园內，工人要在中间种花，外围种草。

已知花园直径为30米，种花的圆半径为10米，求草地的面积是多少？6.画一个直径是12厘米的圆，并在圆中画一个圆心角是100°的扇形。

求这个扇形的面积。

7.一个半圆形养鱼池，直径是4米，这个养鱼池的周长是多少米？占地面积是多少平方米？8.天虹百货商场一天卖出儿童服装和成人服装共800套，其中卖出的成人服装套数相当于儿童服装的，卖出儿童服装和成人服装分别是多少套？9.12岁男生的标准身高是153厘米，12岁女生的标准身高是155厘米，明明和美美今年都是12岁。

明明的身高超出标准，美美的身高比标准矮。

小勇和小梅的身高各是多少厘米?10.圆的周长为12.56米，那么这个圆的半径是多少米?面积是多少平方米?11.同学们做种子发芽试验，绿豆种子一共80粒，发芽了78粒，发芽率是多少？12.一个圆形花坛的直径是8m，在花坛的周围摆放盆花，每隔1.57m放一盆，一共可以放几盆花？13.录音机厂第三季度计划生产录音机3800台，实际生产4750台，实际产量超过计划百分之几?14.苹果有32千克，雪梨有30千克，苹果与雪梨的质量和的相当于香蕉的质量，求香蕉的质量？15.半径为6厘米的扇形面积为18.84平方厘米，它的圆心角是多少度？16.一桶洗衣粉，第一次倒出全桶的22%，第二次倒出全桶的23%，还剩下2.2千克，这桶洗衣粉原有多少千克？17.汕尾和广州两地相距约330千米，一辆汽车从汕尾出发开往广州，已经行驶了全程的，还要行驶多少千米才能到达广州？18.今年3月份，学校领回150棵小树苗，其中的40％分给六年级，其余的按1:5分给四、五年级，四、五年级各分到多少棵小树苗?19.六年级男生有180人，女生有160人，男生比女生多百分之几？女生比男生少百分之几？20.某工厂7月份用水120吨，8月份比7月份节约了20%，8月份用水多少吨？21.商店促销，一个电饭煲现价220元，比原价降价15%，这个电饭煲原价多少元？22.某工厂去年计划产值100万元，实际增产20万元。

(湖北国培2011)教育技术初级考试模拟试题1(50道选择题)及答案

1、在评价教学资源时，相对而言，可以忽略的要素是（）。

Ａ. 教学资源的技艺水平Ｂ. 教学资源的教育价值Ｃ. 教学资源的设计时间Ｄ. 教学资源的科学含量2、下列关于常用软件工具的表述正确的是（）。

Ａ. PowerPoint和WPS软件用于制作演示课件或演示汇报，主要处理扩展名为.xls的文件Ｂ. Windows Media Player是一种播放软件，可以播放扩展名为.mpeg的文件Ｃ. IE是一种播放软件，可以播放扩展名为.wam的文件Ｄ. Word、WPS软件擅长文字处理，主要处理扩展名为.ppt的文件3、在讲授《圆的面积》课程前，需要收集教学需要的各种相关资料。

下列资料收集方法中，不属于数字教学资源收集方式的有（）。

Ａ. 去学校图书馆借阅相关的书籍Ｂ. 利用专用搜索软件或专业数据库进行检索Ｃ. 利用专业网站或专题网站进行检索Ｄ. 利用搜索引擎查找4、在英语课上，教师会经常组织学生就某一主题进行自由讨论，组织讨论的主要目的不包括（）。

Ａ. 让学生练习准确表达句子，达到发言标准Ｂ. 让学生练习用英语传达信息Ｃ. 为学生流利表达英语提供练习机会Ｄ. 给学生提供更多说英语的机会5、教学目标是为实现教育目的而提出的一种概括性的总体要求，是一种原则性的规定。

下面有关教学目标的表述中正确的是（）。

Ａ. 教师在确定教学目标时要对教学内容和教学资源两方面进行分析Ｂ. 对教学内容分析的目的在于确定“教什么”，而对学习者进行分析的目的则是确定“如何教”Ｃ. 对学习者分析是为了掌握学习者的智力因素方面的信息，帮助教师计划教学Ｄ. 国家课程标准是教材编写、教学、评估和考试命题的依据，所以课程标准是教师制定教学目标的唯一标准6、在幻灯片视图窗格中，若状态栏中显示“幻灯片3 / 6”的字样，则表示（）。

Ａ. 共有9张幻灯片，目前只编辑了3张Ｂ. 共有6张幻灯片，目前显示的是第3张Ｃ. 共有9张幻灯片，目前显示的是第3张Ｄ. 共有6张幻灯片，目前只编辑了3张7、对演示型课件的制作和使用理解正确的是（）。

上海市2019年中考数学真题与模拟题分类专题17 图形的变化之解答题(1)(50道题)(解析版)

专题17 图形的变化之解答题（1）参考答案与试题解析一．解答题（共50小题）1．（2019•上海）图1是某小型汽车的侧面示意图，其中矩形ABCD表示该车的后备箱，在打开后备箱的过程中，箱盖ADE可以绕点A逆时针方向旋转，当旋转角为60°时，箱盖ADE落在AD′E′的位置（如图2所示）．已知AD＝90厘米，DE＝30厘米，EC＝40厘米．（1）求点D′到BC的距离；（2）求E、E′两点的距离．【答案】解：（1）过点D′作D′H⊥BC，垂足为点H，交AD于点F，如图3所示．由题意，得：AD′＝AD＝90厘米，∠DAD′＝60°．∵四边形ABCD是矩形，∴AD∥BC，∴∠AFD′＝∠BHD′＝90°．在Rt△AD′F中，D′F＝AD′•sin∠DAD′＝90×sin60°＝45厘米．又∵CE＝40厘米，DE＝30厘米，∴FH＝DC＝DE+CE＝70厘米，∴D′H＝D′F+FH＝（4570）厘米．答：点D′到BC的距离为（4570）厘米．（2）连接AE，AE′，EE′，如图4所示．由题意，得：AE′＝AE，∠EAE′＝60°，∴△AEE′是等边三角形，∴EE′＝AE．∵四边形ABCD是矩形，∴∠ADE＝90°．在Rt△ADE中，AD＝90厘米，DE＝30厘米，∴AE30厘米，∴EE′＝30厘米．答：E、E′两点的距离是30厘米．【点睛】本题考查了解直角三角形的应用、矩形的性质、等边三角形的判定与性质以及勾股定理，解题的关键是：（1）通过解直角三角形求出D′F的长度；（2）利用勾股定理求出AE的长度．2．（2019•上海）已知：如图，AB、AC是⊙O的两条弦，且AB＝AC，D是AO延长线上一点，联结BD并延长交⊙O于点E，联结CD并延长交⊙O于点F．（1）求证：BD＝CD；（2）如果AB2＝AO•AD，求证：四边形ABDC是菱形．【答案】证明：（1）如图1，连接BC，OB，OC，∵AB、AC是⊙O的两条弦，且AB＝AC，∴A在BC的垂直平分线上，∵OB＝OA＝OC，∴O在BC的垂直平分线上，∴AO垂直平分BC，∴BD＝CD；（2）如图2，连接OB，∵AB2＝AO•AD，∴，∵∠BAO＝∠DAB，∴△ABO∽△ADB，∴∠OBA＝∠ADB，∵OA＝OB，∴∠OBA＝∠OAB，∴∠OAB＝∠BDA，∴AB＝BD，∵AB＝AC，BD＝CD，∴AB＝AC＝BD＝CD，∴四边形ABDC是菱形．【点睛】本题考查了相似三角形的性质和判定，圆心角、弧、弦之间的关系，线段垂直平分线的性质，菱形的判定，垂径定理等知识点，能综合运用知识点进行推理是解此题的关键．3．（2019•上海）如图1，AD、BD分别是△ABC的内角∠BAC、∠ABC的平分线，过点A作AE⊥AD，交BD的延长线于点E．（1）求证：∠E═∠C；（2）如图2，如果AE＝AB，且BD：DE＝2：3，求cos∠ABC的值；（3）如果∠ABC是锐角，且△ABC与△ADE相似，求∠ABC的度数，并直接写出的值．【答案】（1）证明：如图1中，∵AE⊥AD，∴∠DAE＝90°，∠E＝90°﹣∠ADE，∵AD平分∠BAC，∴∠BAD∠BAC，同理∠ABD∠ABC，∵∠ADE＝∠BAD+∠DBA，∠BAC+∠ABC＝180°﹣∠C，∴∠ADE（∠ABC+∠BAC）＝90°∠C，∴∠E＝90°﹣（90°∠C）∠C．（2）解：延长AD交BC于点F．∵AB＝AE，∴∠ABE＝∠E，BE平分∠ABC，∴∠ABE＝∠EBC，∴∠E＝∠CBE，∴AE∥BC，∴∠AFB＝∠EAD＝90°，，∵BD：DE＝2：3，∴cos∠ABC．（3）∵△ABC与△ADE相似，∠DAE＝90°，∴∠ABC中必有一个内角为90°∵∠ABC是锐角，∴∠ABC≠90°．①当∠BAC＝∠DAE＝90°时，∵∠E∠C，∴∠ABC＝∠E∠C，∵∠ABC+∠C＝90°，∴∠ABC＝30°，此时2．②当∠C＝∠DAE＝90°时，∠∠C＝45°，∴∠EDA＝45°，∵△ABC与△ADE相似，∴∠ABC＝45°，此时2．综上所述，∠ABC＝30°或45°，2或2．【点睛】本题属于相似形综合题，考查了相似三角形的判定和性质，平行线的判定和性质，锐角三角函数等知识，解题的关键是学会用分类讨论的思想思考问题，属于中考压轴题．4．（2018•上海）如图，已知△ABC中，AB＝BC＝5，tan∠ABC．（1）求边AC的长；（2）设边BC的垂直平分线与边AB的交点为D，求的值．【答案】解：（1）作A作AE⊥BC，在Rt△ABE中，tan∠ABC，AB＝5，∴AE＝3，BE＝4，∴CE＝BC﹣BE＝5﹣4＝1，在Rt△AEC中，根据勾股定理得：AC；（2）∵DF垂直平分BC，∴BD＝CD，BF＝CF，∵tan∠DBF，∴DF，在Rt△BFD中，根据勾股定理得：BD，∴AD＝5，则．【点睛】此题考查了解直角三角形，线段垂直平分线的性质，以及等腰三角形的性质，熟练掌握勾股定理是解本题的关键．5．（2019•嘉定区二模）如图，在矩形ABCD中，点E是边AB的中点，△EBC沿直线EC翻折，使B点落在矩形ABCD内部的点P处，联结AP并延长AP交CD于点F，联结BP交CE于点Q．（1）求证：四边形AECF是平行四边形；（2）如果P A＝PE，求证：△APB≌△EPC．【答案】证明：（1）由折叠得到EC垂直平分BP，设EC与BP交于Q，∴BQ＝EQ∵E为AB的中点，∴AE＝EB，∴EQ为△ABP的中位线，∴AF∥EC，∵AE∥FC，∴四边形AECF为平行四边形；（2）∵AF∥EC，∴∠APB＝∠EQB＝90°，由翻折性质∠EPC＝∠EBC＝90°，∠PEC＝∠BEC，∵E为直角△APB斜边AB的中点，且AP＝EP，∴△AEP为等边三角形，∠BAP＝∠AEP＝60°，∠CEP＝∠CEB60°，在△ABP和△EPC中，∠∠，∴△ABP≌△EPC（AAS）．【点睛】此题考查全等三角形的判定与性质，折叠的性质，熟练掌握全等三角形的判定与性质是解本题的关键．6．（2019•宝山区二模）如图，在矩形ABCD中，E是AB边的中点，沿EC对折矩形ABCD，使B点落在点P处，折痕为EC，联结AP并延长AP交CD于F点，（1）求证：四边形AECF为平行四边形；（2）如果P A＝PE，联结BP，求证：△APB≌△EPC．【答案】证明：（1）由折叠得到EC垂直平分BP，设EC与BP交于Q，∴BQ＝EQ∵E为AB的中点，∴AE＝EB，∴EQ为△ABP的中位线，∴AF∥EC，∵AE∥FC，∴四边形AECF为平行四边形；（2）∵AF∥EC，∴∠APB＝∠EQB＝90°，由翻折性质∠EPC＝∠EBC＝90°，∠PEC＝∠BEC∵E为直角△APB斜边AB的中点，且AP＝EP，∴△AEP为等边三角形，∠BAP＝∠AEP＝60°，∠∠∠∠在△ABP和△EPC中，∴△ABP≌△EPC（AAS）【点睛】此题考查全等三角形的判定与性质，折叠的性质，熟练掌握全等三角形的判定与性质是解本题的关键．7．（2019•崇明区二模）如图，已知△ABC中，AB＝6，∠B＝30°，tan∠．（1）求边AC的长；（2）将△ABC沿直线l翻折后点B与点A重合，直线l分别与边AB、BC相交于点D、E，求的值．【答案】解：（1）过A作AH⊥BC，垂足为H，如图1所示：∵AB＝6，∠B＝30°，AH⊥BC，∴AH＝3，∵tan∠ACB，∴CH＝2，∴AC；（2）由翻折得：BD AB＝3，AE＝BE，∠BDE＝90°，∵cos B，∴，∴BE＝2，∴AE＝2，∴EH，∴EC＝CH+EH＝2，∴46．【点睛】本题考查了翻折变换的性质、含30°角的直角三角形的性质、三角函数、勾股定理等知识；熟练掌握翻折变换的性质是解决问题的关键．8．（2019•青浦区二模）已知：如图，在菱形ABCD中，AB＝AC，点E、F分别在边AB、BC上，且AE＝BF，CE与AF相交于点G．（1）求证：∠FGC＝∠B；（2）延长CE与DA的延长线交于点H，求证：BE•CH＝AF•AC．【答案】证明：（1）∵四边形ABCD为菱形，∴AB＝BC，而AB＝AC，∴AB＝BC＝AC，∴△ABC为等边三角形，∴∠B＝∠BAC＝60°，在△ABF和△CAE中，∴△ABF≌△CAE（SAS），∴∠BAF＝∠ACE，∵∠FGC＝∠GAC+∠ACG＝∠GAC+∠BAF＝∠BAC＝60°，∴∠FGC＝∠B；（2）如图，∵四边形ABCD为菱形，∴∠B＝∠D，AD∥BC，∴∠BCE＝∠H，∴△BCE∽△DHC，∴，∵△ABF≌△CAE，∴CE＝AF∵CA＝CB＝CD，∴，∴BE•CH＝AF•AC．【点睛】本题考查了相似三角形的判定与性质：判定两个三角形相似时，应注意利用图形中已有的公共角、公共边等隐含条件，以充分发挥基本图形的作用，寻找相似三角形的一般方法是通过作平行线构造相似三角形；同时灵活运用相似三角形的性质进行几何计算．也考查了菱形的性质．9．（2019•浦东新区二模）已知：如图，在直角梯形ABCD中，AD∥BC，DC⊥BC，AB＝AD，AM⊥BD，垂足为点M，连接CM并延长，交线段AB于点N．求证：（1）∠ABD＝∠BCM；（2）BC•BN＝CN•DM．【答案】证明：（1）∵AB＝AD，∴∠ABD＝∠ADB，∵AD∥BC，∴∠ADB＝∠MBC，∴∠ABD＝∠MBC，∵AB＝AD，AM⊥BD，∴BM＝DM，∵DC⊥BC，∴∠BCD＝90°，∴CM＝BM＝DM，∴∠MBC＝∠BCM，∴∠ABD＝∠BCM；（2）∵∠BNM＝∠CNB，∠NBM＝∠NCB，∴△NBM∽△NCB，∴BN：CN＝BM：BC，而BM＝DM，∴BN：CN＝DM：BC，∴BC•BN＝CN•DM．【点睛】本题考查了相似三角形的判定与性质：在判定两个三角形相似时，应注意利用图形中已有的公共角、公共边等隐含条件，以充分发挥基本图形的作用，寻找相似三角形的一般方法是通过作平行线构造相似三角形．灵活运用相似三角形的性质进行几何计算．10．（2019•静安区二模）已知：如图5，在矩形ABCD中，过AC的中点M作EF⊥AC，分别交AD、BC于点E、F．（1）求证：四边形AECF是菱形；（2）如果CD2＝BF•BC，求∠BAF的度数．【答案】（1）证明：∵四边形ABCD为矩形，∴AD∥BC，∴∠1＝∠2，∵点M为AC的中点，∴AM＝CM．在△AME与△CMF中∠∠∴△AME≌△CMF（ASA），∴ME＝MF．∴四边形AECF为平行四边形，又∵EF⊥AC，∴平行四边形AECF为菱形；（2）解：∵CD2＝BF•BC，∴，又∵四边形ABCD为矩形，∴AB＝CD，∴又∵∠ABF＝∠CBA，∴△ABF∽△CBA，∴∠2＝∠3，∵四边形AECF为菱形，∴∠1＝∠4，即∠1＝∠3＝∠4，∵四边形ABCD为矩形，∴∠BAD＝∠1+∠3+∠4＝90°，∴即∠1＝30°．【点睛】本题考查了相似三角形的判定与性质：在判定两个三角形相似时，应注意利用图形中已有的公共角、公共边等隐含条件，以充分发挥基本图形的作用，寻找相似三角形的一般方法是通过作平行线构造相似三角形．也考查了菱形的判定与性质和矩形的性质．11．（2019•虹口区二模）如图，在▱ABCD中，AC与BD相交于点O，过点B作BE∥AC，联结OE交BC 于点F，点F为BC的中点．（1）求证：四边形AOEB是平行四边形；（2）如果∠OBC＝∠E，求证：BO•OC＝AB•FC．【答案】证明：（1）∵BE∥AC，∴△COF∽△BFE∴∵点F为BC的中点，∴CF＝BF，∴OC＝BE∵四边形ABCD是平行四边形，∴AO＝CO∴AO＝BE∵BE∥AC，∴四边形AOEB是平行四边形（2）∵四边形AOEB是平行四边形，∴∠BAO＝∠E∵∠OBC＝∠E，∴∠BAO＝∠OBC∵∠ACB＝∠BCO，∴△COB∽△CBA∴∵四边形ABCD是平行四边形，∴AC＝2OC∵点F为BC的中点，∴BC＝2FC∴即BO•OC＝AB•FC【点睛】此题考查相似三角形的判定和性质，关键是根据平行四边形的性质和相似三角形的判定和性质解答．12．（2019•普陀区二模）已知：如图，在四边形ABCD中，AD＜BC，点E在AD的延长线上，∠ACE＝∠BCD，EC2＝ED•EA．（1）求证：四边形ABCD为梯形；（2）如果，求证AB2＝ED•BC．【答案】（1）证明：∵EC2＝ED•EA∴而∠E＝∠E∴△ECA∽△EDC∴∠EAC＝∠ECD又∵∠ACE＝∠BCD∴∠ACE﹣∠ACD＝∠BCD﹣∠ACD即∠ECD＝∠BCA∴∠EAC＝∠BCA∴AE∥BC，∵AD＜BC，故四边形ABCD是梯形．（2）证明：由（1）可知△ECA∽△EDC∴即得而由已知可得∴CD＝AB，即梯形ABCD是等腰梯形∴∠B＝∠BCD而∠BCD＝∠EDC∴∠B＝∠EDC由（1）知∠BCA＝∠ECD∴△ABC∽△EDC∴而AB＝CD∴AB2＝ED•BC故AB2＝ED•BC得证．【点睛】本题考查的是相似三角形的判定与性质，以及等腰梯形的判定与性质，通过比例式得出对应线段相等也是证明线段相等的一种方法．13．（2019•长宁区二模）如图，平行四边形ABCD的对角线AC、BD交于点O，点E在边CB的延长线上，且∠EAC＝90°，AE2＝EB•EC．（1）求证：四边形ABCD是矩形；（2）延长DB、AE交于点F，若AF＝AC，求证：AE＝BF．【答案】证明：（1）∵AE2＝EB•EC∴又∵∠AEB＝∠CEA∴△AEB∽△CEA∴∠EBA＝∠EAC而∠EAC＝90°∴∠EBA＝∠EAC＝90°又∵∠EBA+∠CBA＝180°∴∠CBA＝90°而四边形ABCD是平行四边形∴四边形ABCD是矩形即得证．（2）∵△AEB∽△CEA∴即，∠EAB＝∠ECA∵四边形ABCD是矩形∴OB＝OC∴∠OBC＝∠ECA∴∠EBF＝∠OBC＝∠ECA＝∠EAB即∠EBF＝∠EAB又∵∠F＝∠F∴△EBF∽△BAF∴而AF＝AC∴BF＝AE即AE＝BF得证．【点睛】本题考查的是相似三角形的判定与性质及矩形的性质，利用三角形的相似进行边与角的转化是解决本题的关键．14．（2019•张店区二模）如图，已知梯形ABCD中，AD∥BC，AB＝AC，E是边BC上的点，且∠AED＝∠CAD，DE交AC于点F．（1）求证：△ABE∽△DAF；（2）当AC•FC＝AE•EC时，求证：AD＝BE．【答案】证明：（1）∵AD∥BC，∴∠DAC＝∠ACB，∵AB＝AC，∴∠B＝∠ACB，∴∠DAF＝∠B，∵∠AEC＝∠AED+∠DEC＝∠B+∠BAE，∠AED＝∠CAD＝∠ACB，∴∠DEC＝∠BAE，∵AD∥BC，∴∠DEC＝∠ADF，∴∠BAE＝∠ADF，∴△ABE∽△DAF．（2）∵AC•FC＝AE•EC，AC＝AB，∴AB•FC＝AE•EC，∵∠B＝∠FCE，∠BAE＝∠FEC，∴△BAE∽△CEF，∴，∴，∴FC＝EF，∴∠FEC＝∠FCE，∵∠FCE＝∠B，∴∠B＝∠FEC，∴AB∥DE，∵AD∥BE，∴四边形ADEB是平行四边形，∴AD＝BE．【点睛】本题考查相似三角形的判定和性质，平行四边形的判定和性质等知识，解题的关键是正确寻找相似三角形解决问题，属于中考常考题型．15．（2019•普陀区二模）如图，已知点D、E分别在△ABC的边AB和AC上，DE∥BC，，△ADE 的面积等于3．（1）求△ABC的面积；（2）如果BC＝9，且cot B，求∠AED的正切值．【答案】解：（1）∵DE∥BC，∴△ADE∽△ABC，∴（）2，∵S△ADE＝3，∴S△ABC＝27．（2）如图，作AH⊥BC于H．∵S△ABC BC×AH＝27，∴AH＝6，∵cot B，∴BH＝4，CH＝9﹣4＝5，∵DE∥BC，∴∠AED＝∠C，∴tan∠AED＝tan∠C．【点睛】本题考查相似三角形的判定和性质，解直角三角形等知识，解题的关键是学会添加常用辅助线，构造直角三角形解决问题．16．（2019•闵行区二模）如图1，点P为∠MAN的内部一点．过点P分别作PB⊥AM、PC⊥AN，垂足分别为点B、C．过点B作BD⊥CP，与CP的延长线相交于点D．BE⊥AP，垂足为点E．（1）求证：∠BPD＝∠MAN；（2）如果sin∠，AB＝2，BE＝BD，求BD的长；（3）如图2，设点Q是线段BP的中点．联结QC、CE，QC交AP于点F．如果∠MAN＝45°，且BE ∥QC，求的值．【答案】（1）证明：∵PB⊥AM，PC⊥AN，∴∠PBA＝∠PCA＝90°，∵∠BAC+∠PCA+∠BPC+∠PBA＝360°，∴∠BAC+∠BPC＝180°，∵∠BPD+∠BPC＝180°，∴∠MAN＝∠BPD；（2）解：∵BE⊥AP，∠D＝90°，BE＝BD，∴∠BPD＝∠BPE．∴∠BPE＝∠BAC，在Rt△ABP中，由∠ABP＝90°，BE⊥AP，∴∠APB＝∠ABE，∴∠BAC＝∠ABE，∴sin∠BAC＝sin∠ABE，∵AB＝2，∴AE＝6，∴BE2，∴BD＝BE＝2；（3）解：过点B作BG⊥AC，垂足为点G．过点Q作QH∥BD，设BD＝2a，PC＝2b，∵∠BPD＝∠MAN＝45°，∴DP＝BD＝2a，∴CD＝2a+2b，在Rt△ABG和Rt△BDP中，∠BAC＝∠BPD＝45°，∴BG＝AG，DP＝BD，∵QH∥BD，点Q为BP的中点，∴PH PD＝a．QH BD＝a，∴CH＝PH+PC＝a+2b，∵BD∥AC，CD⊥AC，BG⊥AC，∴BG＝DC＝2a+2b．∴AC＝4a+2b，∵BE∥QC，BE⊥AP，∴∠CFP＝∠BEP＝90°，又∠ACP＝90°，∴∠QCH＝∠P AC，∴△ACP∽△QCH，∴，即，解得，a＝b，∴CH＝3a．由勾股定理得，CQ a，∵∠QHC＝∠PFC＝90°，∠QCH＝∠PCF，∴△QCH∽△PFC，∴，即，解得，FC a，∴QF＝QC﹣FC a，∵BE∥QC，Q是PB的中点，∴PE＝EF，∴△PQF与△CEF面积之比等于高之比，∴．【点睛】本题考查的是相似三角形的判定和性质、锐角三角函数的定义，掌握相似三角形的判定定理和性质定理是解题的关键．17．（2019•闵行区二模）如图，已知四边形ABCD是菱形，对角线AC、BD相交于点O，BD＝2AC．过点A作AE⊥CD，垂足为点E，AE与BD相交于点F．过点C作CG⊥AC，与AE的延长线相交于点G．求证：（1）△ACG≌△DOA；（2）DF•BD＝2DE•AG．【答案】证明：（1）∵在菱形ABCD中，AD＝CD，AC⊥BD，OB＝OD，∴∠DAC＝∠DCA，∠AOD＝90°，∵AE⊥CD，CG⊥AC，∴∠DCA+∠GCE＝90°，∠G+∠GCE＝90°，∴∠G＝∠DCA，∴∠G＝∠DAC，∵BD＝2AC，BD＝2OD，∴AC＝OD，在△ACG和△DOA中，∠∠∴△ACG≌△DOA（AAS）；（2）∵AE⊥CD，BD⊥AC，∴∠DOC＝∠DEF＝90°，又∵∠CDO＝∠FDE，∴△CDO∽△FDE，∴，即得OD•DF＝DE•CD，∵△ACG≌△DOA，∴AG＝AD＝CD，又∵OD BD，∴DF•BD＝2DE•AG．【点睛】本题考查了全等三角形的性质和判定，相似三角形的性质和判定，菱形的性质，能综合运用定理进行推理是解此题的关键．18．（2019•崇明区二模）如图，在直角梯形ABCD中，∠ABC＝90°，AD∥BC，对角线AC、BD相交于点O．过点D作DE⊥BC，交AC于点F．（1）联结OE，若，求证：OE∥CD；（2）若AD＝CD且BD⊥CD，求证：．【答案】证明：（1）∵∠ABD＝90°，DE⊥BC，∴AB∥DE，∴，∵，∴，∴OE∥CD；（2）∵AD∥BC，AB∥DE，∴四边形ABED为平行四边形又∵∠ABD＝90°，∴四边形ABED为矩形，∴AD＝BE，∠ADE＝90°，又∵BD⊥CD，∴∠BDC＝∠BDE+∠CDE＝90°，∠ADE＝∠ADB+∠BDE＝90°，∴∠CDE＝∠ADB，∵AD＝CD，∴∠DAC＝∠DCA，在△ADO和△CDF中∠∠∴△ADO≌△CDF（ASA），∴OD＝DF，∵AB∥DE，∴，∵AD∥BC，∴，∴．【点睛】本题考查了矩形的性质和判定，相似三角形的性质和判定，直角梯形的性质等知识点，能综合运用知识点进行推理是解此题的关键．19．（2019•黄浦区二模）如图，已知四边形ABCD，AD∥BC，对角线AC、BD交于点O，DO＝BO，过点C作CE⊥AC，交BD的延长线于点E，交AD的延长线于点F，且满足∠DCE＝∠ACB．（1）求证：四边形ABCD是矩形；（2）求证：．【答案】解：（1）证明∵AD∥BC，∴，∵DO＝BO，∴AD＝BC，∴四边形ABCD是平行四边形，∵CE⊥AC，∴∠ACD+∠DCE＝90°，∵∠DCE＝∠ACB，∴∠ACB+∠ACD＝90°，即∠BCD＝90°，∴四边形ABCD是矩形；（2）∵四边形ABCD是矩形，∴AC＝BD，∠ADC＝90°，∵AD∥BC，∴，∴∴，∵∠ADC＝∠ACF＝90°，∴∠，∴．【点睛】本题主要考查对矩形的性质，成比例的线段性质的理解和掌握，此题难度不大．20．（2019•黄浦区二模）已知四边形ABCD中，AD∥BC，∠ABC＝2∠C，点E是射线AD上一点，点F是射线DC上一点，且满足∠BEF＝∠A．（1）如图1，当点E在线段AD上时，若AB＝AD，在线段AB上截取AG＝AE，联结GE．求证：GE＝DF；（2）如图2，当点E在线段AD的延长线上时，若AB＝3，AD＝4，cos A，设AE＝x，DF＝y，求y 关于x的函数关系式及其定义域；（3）记BE与CD交于点M，在（2）的条件下，若△EMF与△ABE相似，求线段AE的长．【答案】解：（1）∵AG＝AE，∴∠．∵AD∥BC，∴∠A+∠ABC＝180°，∵∠ABC＝2∠C，∴∠，∴∠AGE＝∠C，∵AD∥BC，∴∠D+∠C＝180°，又∠BGE+∠AGE＝180°，∴∠BGE＝∠D，∵∠BEF+∠FED＝∠A+∠GBE，∵∠BEF＝∠A，∴∠FED＝∠GBE，又AB＝AD，AG＝AE，∴BG＝ED，∴△GBE≌△DEF（ASA），∴GE＝DF；（2）在射线AB上截取AH＝AE，联结EH，∵∠HBE＝∠A+∠AEB，∠DEF＝∠BEF+∠AEB，又∠BEF＝∠A，∴∠HBE＝∠DEF．∵AD∥BC，∴∠EDC＝∠C，∠A+∠ABC＝180°．∵AH＝AE，∴∠，又∠ABC＝2∠C，∴∠H＝∠C，∴∠H＝∠EDC，∴△BHE∽△EDF，∴．过点H作HP⊥AE，垂足为点P．∵，AE＝AH＝x，∴，，，∴，∵AB＝3，AD＝4，AE＝x，DF＝y，∴，∴＞；（3）记EH与BC相交于点N．∵△EMF∽△ABE，∠BEF＝∠A，∴∠AEB＝∠EMF，或∠AEB＝∠EFM，若∠AEB＝∠EMF，又∠AEB＜∠EMF，矛盾，∴此情况不存在，若∠AEB＝∠EFM，∵△BHE∽△EDF，∴∠BEH＝∠EFM，∴∠AEB＝∠BEH，∵AD∥BC，∴∠AEB＝∠EBC，∴∠BEH＝∠EBC，∴BN＝EN＝BH＝x﹣3，∵AD∥BC，∴，∴，∴，∴线段AE的长为．【点睛】本题属于相似三角形综合题，考查了全等三角形的判定和性质，相似三角形的判定和性质等知识，解题的关键是学会添加常用辅助线，构造全等三角形解决问题，属于中考压轴题．21．（2019•黄浦区一模）如图，在△ABC中，点D在边BC上，∠CAD＝∠B，点E在边AB上，联结CE 交AD于点H，点F在CE上，且满足CF•CE＝CD•BC．（1）求证：△ACF∽△ECA；（2）当CE平分∠ACB时，求证：．【答案】（1）证明：∵∠ACD＝∠BCA，∠CAD＝∠B，∴△ACD∽△BCA，∴，∴AC2＝CD•BC，∵CF•CE＝CD•BC，∴AC2＝CF•CE，∴，∵∠ACF＝∠ECA，∴△ACF∽△ECA；（2）证明：∵CF•CE＝CD•BC，∴，∵∠DCF＝∠ECB，∴△CFD∽△CBE，∴∠CFD＝∠B，∵∠CAD＝∠B，∴∠CFD＝∠CAD，∴A，F，D，C四点共圆，∴∠AFC＝∠ADC，∵△ACF∽△ECA，∴∠CAE＝∠AFC，∴∠CAE＝∠ADC，∵当CE平分∠ACB，∴∠ACE＝∠DCH，∴△ACE∽△DCH，∴（）2，∵AC2＝CD•BC，∴．【点睛】本题考查了相似三角形的判定和性质，角平分线的定义，熟练掌握相似三角形的判定和性质是解题的关键．22．（2019•长宁区一模）已知锐角∠MBN的余弦值为，点C在射线BN上，BC＝25，点A在∠MBN的内部，且∠BAC＝90°，∠BCA＝∠MBN．过点A的直线DE分别交射线BM、射线BN于点D、E．点F 在线段BE上（点F不与点B重合），且∠EAF＝∠MBN．（1）如图1，当AF⊥BN时，求EF的长；（2）如图2，当点E在线段BC上时，设BF＝x，BD＝y，求y关于x的函数解析式并写出函数定义域；（3）联结DF，当△ADF与△ACE相似时，请直接写出BD的长．【答案】解：（1）∵在Rt△ABC中，∠BAC＝90°，∴cos∠BCA＝cos∠MBN，∴∴AC＝15∴AB20∵S△ABC AB×AC BC×AF，∴AF12，∵AF⊥BC∴cos∠EAF＝cos∠MBN∴AE＝20∴EF16（2）如图，过点A作AH⊥BC于点H，由（1）可知：AB＝20，AH＝12，AC＝15，∴BH16，∵BF＝x，∴FH＝16﹣x，CF＝25﹣x，∴AF2＝AH2+FH2＝144+（16﹣x）2＝x2﹣32x+400，∵∠EAF＝∠MBN，∠BCA＝∠MBN∴∠EAF＝∠BCA，且∠AFC＝∠AFC，∴△F AE∽△FCA∴，∠AEF＝∠F AC，∴AF2＝FC×EF∴x2﹣32x+400＝（25﹣x）×EF，∴EF∴BE＝BF+EF∵∠MBN＝∠ACB，∠AEF＝∠F AC，∴△BDE∽△CF A∴∴∴y（0＜x）（3）如图，若△ADF∽△CEA，∵△△ADF∽△CEA，∴∠ADF＝∠AEC，∵∠EAF＝∠MBN，∠EAF+∠DAF＝180°，∴∠DAF+∠MBN＝180°，∴点A，点F，点B，点D四点共圆，∴∠ADF＝∠ABF，∴∠ADF＝∠AEC＝∠ABF，∴AB＝AE，∵∠BAC＝90°，∴∠ABC+∠ACB＝90°，且∠ABF＝∠AEC，∠ACB＝∠MBN＝∠EAF，∴∠AEC+∠EAF＝90°，∠AEC+∠MBN＝90°，∴∠BDE＝90°＝∠AFC，∵S△ABC AB×AC BC×AF，∴AF12，∴BF16，∵AB＝AE，∠AFC＝90°，∴BE＝2BF＝32，∴cos∠MBN，∴BE，如图，若△ADF∽△CAE，∵△ADF∽△CAE，∴∠ADF＝∠CAE，∠AFD＝∠AEC，∴AC∥DF∴∠DFB＝∠ACB，且∠ACB＝∠MBN，∴∠MBN＝∠DFB，∴DF＝BD，∵∠EAF＝∠MBN，∠EAF+∠DAF＝180°，∴∠DAF+∠MBN＝180°，∴点A，点F，点B，点D四点共圆，∴∠ADF＝∠ABF，∴∠CAE＝∠ABF，且∠AEC＝∠AEC，∴△ABE∽△CAE∴设CE＝3k，AE＝4k，（k≠0）∴BE k，∵BC＝BE﹣CE＝25∴k∴AE，CE，BE∵∠ACB＝∠F AE，∠AFC＝∠AFE，∴△AFC∽△EF A，∴，设AF＝7a，EF＝20a，∴CF a，∵CE＝EF﹣CF a，∴a，∴EF，∵AC∥DF，∴，∴，∴DF，综上所述：当BD为或时，△ADF与△ACE相似【点睛】本题是相似综合题，考查了相似三角形的判定和性质，勾股定理，锐角三角函数等知识，灵活运用相关的性质定理、综合运用知识是解题的关键．23．（2019•虹口区一模）如图，在△ABC中，AB＝AC，D是边BC的中点，DE⊥AC，垂足为点E．（1）求证：DE•CD＝AD•CE；（2）设F为DE的中点，连接AF、BE，求证：AF•BC＝AD•BE．【答案】证明：（1）∵AB＝AC，D是边BC的中点，∴AD⊥BC，∴∠ADC＝90°，∴∠ADE+∠CDE＝90°．∵DE⊥AC，∴∠CED＝90°，∴∠CDE+∠DCE＝90°，∴∠ADE＝∠DCE．又∵∠AED＝∠DEC＝90°，∴△AED∽△DEC，∴，∴DE•CD＝AD•CE；（2）∵AB＝AC，∴BD＝CD BC．∵F为DE的中点，∴DE＝2DF．∵DE•CD＝AD•CE，∴2DF•BC＝AD•CE，∴．又∵∠BCE＝∠ADF，∴△BCE∽△ADF，∴，∴AF•BC＝AD•BE．【点睛】本题考查了相似三角形的判定与性质、等腰三角形的性质以及余角，解题的关键是：（1）利用相似三角形的判定定理证出△AED∽△DEC；（2）利用相似三角形的判定定理证出△BCE∽△ADF．24．（2019•浦东新区一模）将大小两把含30°角的直角三角尺按如图1位置摆放，即大小直角三角尺的直角顶点C重合，小三角尺的顶点D、E分别在大三角尺的直角边AC、BC上，此时小三角尺的斜边DE 恰好经过大三角尺的重心G．已知∠A＝∠CDE＝30°，AB＝12．（1）求小三角尺的直角边CD的长；（2）将小三角尺绕点C逆时针旋转，当点D第一次落在大三角尺的边AB上时（如图2），求点B、E 之间的距离；（3）在小三角尺绕点C旋转的过程中，当直线DE经过点A时，求∠BAE的正弦值．【答案】解：（1）在Rt△ABC中，AC＝AB cos30°＝6，BC＝6，由重心的性质得：，则CD＝4，DE＝8；（2）连接BE，过点C作CH⊥AB交于点H，BH BC＝3，CH＝BC sin60°＝3，AH＝9，HD，AD＝AH﹣HD＝9，∵∠ACD＝∠ECB，，∴△ADC∽△BEC，∴，即：AD BE，∴BE（9）＝3；（3）①如图，当DE在AC下方时，∵△ADC∽△BEC，∴∠BEC＝∠ADC＝∠AEB+∠CED＝∠DCE+∠DEC＝90°+∠CED，即：∠AEB＝90°，在Rt△ABE中，AE2+BE2＝AB2，设：BE＝x，则AD x，AB＝12，AE＝AD+DE x+8，即：（x+8）2+x2＝122，解得：x＝42，②当DE在AC上方时，求得：x＝42；sin∠BAE．【点睛】本题是三角形相似综合题，核心是确定图象旋转后的位置，利用相似确定边角关系，此类题目难度在于作图的准确性．25．（2019•普陀区一模）如图，点O在线段AB上，AO＝2OB＝2a，∠BOP＝60°，点C是射线OP上的一个动点．（1）如图①，当∠ACB＝90°，OC＝2，求a的值；（2）如图②，当AC＝AB时，求OC的长（用含a的代数式表示）；（3）在第（2）题的条件下，过点A作AQ∥BC，并使∠QOC＝∠B，求AQ：OQ的值．【答案】解：（1）如图①中，作CH⊥AB于H．∵CH⊥AB，∴∠AHC＝∠BHC＝90°，∵∠ACB＝90°，∴∠ACH+∠BCH＝90°，∵∠ACH+∠A＝90°，∴∠BCH＝∠A，∴△ACH∽△CBH，∴，∵OC＝2，∠COH＝60°，∴∠OCH＝30°，∴OH OC＝1，CH，∴，整理得：2a2﹣a﹣4＝0，解得a或（舍弃）．经检验a是分式方程的解．∴a．（2）如图②中，设OC＝x．作CH⊥AB于H，则OH，CH x．在Rt△ACH中，∵AC2＝AH2+CH2，∴（3a）2＝（x）2+（2a x）2，整理得：x2+ax﹣5a2＝0，解得x＝（1）a或（1）a（舍弃），∴OC＝（1）a，（3）如图②﹣1中，延长QC交CB的延长线于K．∵∠AOC＝∠∠AOQ+∠QOC＝∠ABC+∠OCB，∠QOC＝∠ABC，∴∠AOQ＝∠KCO，∵AQ∥BK，∴∠Q＝∠K，∴△QOA∽△KCO，∴，∴，∵∠K＝∠K，∠KOB＝∠AOQ＝∠KCO，∴△KOB∽△KCO，∴，∴【点睛】本题属于相似形综合题，考查了相似三角形的判定和性质，勾股定理等知识，解题的关键是学会添加常用辅助线，构造相似三角形解决问题，学会利用参数构建方程解决问题，属于中考压轴题．26．（2019•宝山区一模）如图，已知：梯形ABCD中，∠ABC＝90°，∠DAB＝45°，AB∥DC，DC＝3，AB＝5，点P在AB边上，以点A为圆心AP为半径作弧交边DC于点E，射线EP于射线CB交于点F．（1）若AP，求DE的长；（2）联结CP，若CP＝EP，求AP的长；（3）线段CF上是否存在点G，使得△ADE与△FGE相似？若相似，求FG的值；若不相似，请说明理由．【答案】解：（1）如图1中，过点A，作AH∥BC，交CD的延长线于点H．∵AB∥CD，∴∠ABC+∠C＝180°，∵∠ABC＝90°，∴∠C＝∠ABC＝∠H＝90°，∴四边形AHCB是矩形，∴AB＝CH＝5，∵CD＝3，∴DH＝CH﹣CD＝2，∵∠HAB＝90°，∠DAB＝45°，∴∠HAD＝∠HDA＝45°∴HD＝AH＝2，AE＝AP，根据勾股定理得，HE3，则ED＝1；（2）连接CP，设AP＝x．∵AB∥CD，∴∠EP A＝∠CEP，即等腰△APE、等腰△PEC两个底角相等，∴△APE∽△PEC，∴，即：PE2＝AE•CE，而EC＝2PB＝2（5﹣x），即：PC2＝CE•AP＝2（5﹣x）x，而PC2＝PB2+BC2，即：PC2＝（5﹣x）2+22，∴2（5﹣x）x＝（5﹣x）2+22，解得：x（不合题意值已舍去），即：AP；（3）如图3中，在线段CF上取一点G，连接EG．设∠F＝α，则∠APE＝∠AEP＝∠BPF＝90°﹣α，则：∠EAP＝180°﹣2∠APE＝2α，∵△ADE∽△FGE，设∠DAE＝∠F＝α，由∠DAB＝45°，可得3α＝45°，2α＝30°，在Rt△ADH中，AH＝DH＝2，在Rt△AHE中，∠HEA＝∠EAB＝2α＝30°，∠HAE＝60°，∴HE＝AH•tan∠HAE＝2，∴DE＝HE﹣HD＝22，EC＝HC﹣HE＝5﹣2，∵△ADE∽△FGE，∴∠ADC＝∠EGF＝135°，则∠CEG＝45°，∴EG EC＝52，∴，即：，解得：FG＝31．【点睛】本题属于三角形相似综合题，涉及到解直角三角形、勾股定理等知识点，其中（3）中，利用三角形相似，确定α的大小，是本题的突破点，属于中考压轴题．27．（2019•黄浦区一模）在△ABC中，∠ACB＝90°，BC＝3，AC＝4，点O是AB的中点，点D是边AC 上一点，DE⊥BD，交BC的延长线于点E，OD⊥DF，交BC边于点F，过点E作EG⊥AB，垂足为点G，EG分别交BD、DF、DC于点M、N、H．（1）求证：；（2）设CD＝x，NE＝y，求y关于x的函数关系式及其定义域；（3）当△DEF是以DE为腰的等腰三角形时，求线段CD的长．【答案】（1）证明：如图1中，∵OD⊥DF，BD⊥DE，∴∠ODF＝∠BDE＝90°，∴∠ODB＝∠NDE，∵EG⊥AB，∴∠BGM＝∠MDE＝90°，∵∠BMG＝∠EMD，∴OBD＝∠DEN，∴△OBD∽△NED，∴．（2）解：如图1中，∵∠BCD＝∠BDE＝90°，∴tan∠DBC，∵，∴，在Rt△ABC中，AB5，∴OB＝OA＝2.5，∴，∴y x（0＜x＜2）．（3）解：①如图2﹣1中，当DE＝DF时，作OK⊥AC于K．∵∠OKD＝∠DCF＝∠ODF＝90°，∴∠ODK+∠KOD＝90°，∠ODK+∠CDF＝90°，∴∠DOK＝∠CDF，∴△OKD∽△DCF，∴，∴，∴CF x（2﹣x），∵DF＝DE，DC⊥EF，∴∠CDE＝∠CDF，∵∠CDE+∠CDB＝90°，∠CBD+∠CDB＝90°，∴∠∠CDE＝∠CBD＝∠CDF，∵∠DCF＝∠DCB＝90°，∴△DCF∽△BCD，∴，∴CD2＝CF•CB，∴x2＝x（2﹣x），解得x或0（舍弃）∴CD．如图2﹣2中，当DE＝EF时，∵ED＝EF，∴∠EDF＝∠EFD，∴∠EDC+∠CDF＝∠DBC+∠BDF，∵∠EDC＝∠DBC，∴∠CDF＝∠BDF，∵∠CDF+∠ADO＝90°，∠BDF+∠BDO＝90°，∴∠ADO＝∠BDO，∵AO＝OB，易知DA＝DB，设DA＝DB＝4﹣x，在Rt△BCD中，∵BD2＝CD2+BC2，∴（4﹣x）2＝x2+32，∴x，∴CD．综上所述，CD的长为或．【点睛】本题属于相似形综合题，考查了相似三角形的判定和性质，解直角三角形，锐角三角函数，勾股定理等知识，解题的关键是学会用分类讨论的思想思考问题，学会利用参数解决问题，属于中考压轴题．28．（2019•徐汇区一模）如图，已知菱形ABCD，点E是AB的中点，AF⊥BC于点F，联结EF、ED、DF，DE交AF于点G，且AE2＝EG•ED．（1）求证：DE⊥EF；（2）求证：BC2＝2DF•BF．【答案】（1）证明：∵AF⊥BC于点F，∴∠AFB＝90°，∵点E是AB的中点，∴AE＝FE，∴∠EAF＝∠AFE，∵AE2＝EG•ED，∴，∵∠AEG＝∠DEA，∴△AEG∽△DEA，∴∠EAG＝∠ADG，∵∠AGD＝∠FGE，∴∠DAG＝∠FEG，∵四边形ABCD是菱形，∴AD∥BC，∴∠DAG＝∠AFB＝90°，∴∠FEG＝90°，∴DE⊥EF；（2）解：∵AE＝EF，AE2＝EG•ED，∴FE2＝EG•ED，∴，∵∠FEG＝∠DEF，∴△FEG∽△DEF，∴∠EFG＝∠EDF，∴∠BAF＝∠EDF，∵∠DEF＝∠AFB＝90°，∴△ABF∽△DFE，∴，∵四边形ACBD是菱形，∴AB＝BC，∵∠AFB＝90°，∵点E是AB的中点，∴FE AB BC，∴，∴BC2＝2DF•BF．【点睛】本题考查了相似三角形的判定和性质，菱形的性质，直角三角形的性质，正确的识别图形是解题的关键．29．（2019•奉贤区一模）如图，已知梯形ABCD中，AB∥CD，∠DAB＝90°，AD＝4，AB＝2CD＝6，E 是边BC上一点，过点D、E分别作BC、CD的平行线交于点F，联结AF并延长，与射线DC交于点G．（1）当点G与点C重合时，求CE：BE的值；（2）当点G在边CD上时，设CE＝m，求△DFG的面积；（用含m的代数式表示）（3）当△AFD∽△ADG时，求∠DAG的余弦值．【答案】解：（1）如图，∵DC∥EF，DF∥CE∴四边形DCEF是平行四边形∴CD＝EF，∵AB＝2CD＝6，∴AB＝2EF，∵EF∥CD，AB∥CD，∴EF∥AB，∴△CFE∽△CAB∴∴BC＝2CE，∴BE＝CE∴EC：BE＝1：1＝1（2）如图，延长AG，BC交为于点M，过点C作CN⊥AB于点N，交EF于点H∵AD⊥CD，CN⊥CD∴AD∥CN，且CD∥AB∴四边形ADCN是平行四边形，又∵∠DAB＝90°∴四边形ADCN是矩形，∴AD＝CN＝4，CD＝AN＝3，∴BN＝AB﹣AN＝3，在Rt△BCN中，BC5∴BE＝BC﹣CE＝5﹣m，∵EF∥AB∴，即∴ME＝BE＝5﹣m，∴MC＝ME﹣CE＝5﹣2m，∵EF∥AB∴∴HC m，∵CG∥EF∴即∴GC∴DG＝CD﹣GC＝3∴S△DFG DG×CH（3）过点C作CN⊥AB于点N，∵AB∥CD，∠DAB＝90°，∴∠DAB＝∠ADG＝90°，若△AFD∽△ADG，∴∠AFD＝∠ADG＝90°∴DF⊥AG又∵DF∥BC∴AG⊥BC。

人教版初中八年级英语模拟(答案及解析)

人教版初中八年级英语模拟(答案及解析)(共50道题)下面有答案和解题分析一、综合题1.Which of the following sentences is in the present simple tense?A. I am studying English now.B. I study English every day.C. I have studied English.D. I was studying English yesterday.2.Which of the following is the correct question form?A. How often do you exercise?B. How often you do exercise?C. How do often you exercise?D. How often you exercise?3.It __________ (1) __________ (rain) a lot these days, and the weather __________ (2) __________ (be) quite cold. I __________ (3) __________ (need) to wear a warm coat every time I __________ (4) __________ (go) outside. Last Saturday, I __________ (5) __________ (meet) my friends at the park, but we __________ (6) __________ (decide) to leave early because it __________ (7) __________ (start) to rain heavily. I__________ (8) __________ (wish) the weather __________ (9) __________ (improve) soon.4.I __________ (never/see) such a beautiful view before. When I __________ (arrive) at the top of the mountain, I __________ (be) amazed by the scenery. I __________ (take) many pictures to remember the moment.st summer, my family and I __________ (1) to the beach for a holiday. We__________ (2) a nice hotel near the sea. Every morning, we __________ (3) breakfast at the hotel and then __________ (4) to the beach to swim. The weather __________ (5) hot, and we __________ (6) ice cream every afternoon. I __________ (7) to go back again next summer because it __________ (8) a very relaxing holiday.6.Which sentence correctly uses "too" to indicate an excess of something?A. The book is too boring for me to finish.B. The book is boring too much for me to finish.C. The book is too much boring for me to finish.D. The book too is boring for me to finish.7.What is the plural form of "child"?A. ChildesB. ChildrenC. ChildsD. Childrens8.Which of the following sentences is correct?A. I have went to the store.B. I have gone to the store.C. I went to the store.D. I gone to the store.9.Which sentence uses the correct word order for a question in the present simple tense?A. Does she like ice cream?B. She does like ice cream?C. Like she ice cream?D. Does like she ice cream?10.It’s important that we ________ (1) (take) care of our environment. People________ (2) (pollute) the air and the water every day, which ________ (3) (cause) serious problems. If we ________ (4) (not/change) our habits, the situation ________ (5) (get) worse. We should ________ (6) (use) public transportation more often and________ (7) (reduce) waste. By doing these things, we ________ (8) (protect) our planet for future generations.11.Choose the correct sentence:A. I can sings well.B. I can sing well.C. I can singing well.D. I can to sing well.12.If it __________ (be) sunny tomorrow, we __________ (have) a picnic in the parkIf it __________ (not, be) sunny, we __________ (stay) indoors and __________ (play) board gamesI __________ (prefer) to go out, but my sister __________ (like) playing games at home.13.Which sentence correctly uses "much"?A. There are much people in the park.B. There is much people in the park.C. There are much people in the park.D. There is much water in the glass.14.When we ______ (go) to the beach last summer, we ______ (have) a lot of funWe______ (swim) in the ocean, ______ (build) sandcastles, and ______ (collect) seashellsThe weather ______ (be) perfect, and we ______ (not/want) to leave.15.Which of the following is the superlative form of "happy"?A. HappyestB. HappierC. Most happyD. Happiest16.Which of the following is the correct form of "good" in the comparative degree?A. GooderB. GoodestC. BetterD. More good17.Which sentence is in the present perfect tense?A. I have finished my homework.B. I finished my homework.C. I will finish my homework.D. I am finishing my homework.18.Which of the following is the correct future tense form of the verb "eat"?A. EatB. EatsC. Will eatD. Ate19.Choose the correct word to complete the sentence: She is __________ student in our class.A. aB. anC. theD. some20.I __________ (never, be) to New York before last summer, but this year I__________ (finally, have) the chance to visitI __________ (spend) two weeks there, andI __________ (have) a wonderful time.21.Which sentence uses the correct form of the verb "to be" in the past?A. They was happy yesterday.B. They were happy yesterday.C. They are happy yesterday.D. They were happy yesterdays.22.Which of the following sentences is correct?A. The train is more faster than the bus.B. The train is the fastest than the bus.C. The train is faster than the bus.D. The train is more fast than the bus.23.Which word is the superlative form of "good"?A. BestB. BetterC. GoodestD. Gooder24.Which sentence correctly uses "there is" for singular nouns?A. There is many books on the shelf.B. There is a book on the shelf.C. There is some books on the shelf.D. There is books on the shelf.25.What is the plural form of "foot"?A. FootsB. FeetsC. FootD. Feet26.Which sentence is in the past perfect tense?A. I had eaten dinner before I left for the party.B. I ate dinner before I left for the party.C. I have eaten dinner before I left for the party.D. I will eat dinner before I leave for the party.27.Which sentence is in the future continuous tense?A. I will be studying at 8 pm tomorrow.B. I study at 8 pm tomorrow.C. I am studying at 8 pm tomorrow.D. I will study at 8 pm tomorrow.28.Which of the following sentences uses "neither" correctly?A. Neither of the boys is going to the party.B. Neither of the boys are going to the party.C. Neither of the boys is going to party.D. Neither of the boys are going to party.29.Which of the following is the correct plural form of "child"?A. ChildsB. ChildrensC. ChildrenD. Childes30.Which of the following is the correct plural form of "box"?A. BoxsB. BoxesC. BoxiesD. Boxen31.Which of the following is the correct form of the verb "to be" for the subject "I"?A. AmB. IsC. AreD. Be32.If I __________ (be) you, I __________ (talk) to my parents before making such an important decisionThey __________ (always, give) me good advice, and I __________ (think) their opinion __________ (be) very valuable.33.She ______ (be) very happy when she ______ (hear) the news of her promotion.34.By the time I __________ (1) __________ (get) to the station, the train__________ (2) __________ (leave). I __________ (3) __________ (miss) it, so I__________ (4) __________ (decide) to take the bus instead. Fortunately, I __________ (5) __________ (catch) the next bus, and I __________ (6) __________ (arrive) on time.35.Which of the following is the correct way to ask for permission in English?A. Can I go to the bathroom?B. Am I go to the bathroom?C. I can go to the bathroom?D. I can to go the bathroom?36.Which of the following sentences is in the correct form of the future tense?A. I will be go to the party tomorrow.B. I will going to the party tomorrow.C. I will go to the party tomorrow.D. I will went to the party tomorrow.37.I __________ breakfast at 7:00 every morning.A. haveB. hasC. havingD. had38.When we ______ (arrive) at the station, the train ______ (already/leave).39.Which sentence is in the correct form of the past perfect tense?A. I had finished my homework before dinner.B. I finished my homework before dinner.C. I had finish my homework before dinner.D. I had finishing my homework before dinner.40.Which of the following sentences is correct?A. She is taller than me.B. She is more taller than me.C. She is tallest than me.D. She is tall than me.41.Choose the correct word to complete the sentence: "She has ____ apples in her basket."A. manyB. muchC. a lotD. some42.Which of the following sentences uses "a lot of" correctly?A. There is a lot of books on the table.B. There are a lot of books on the table.C. There is a lot of book on the table.D. There are a lot of book on the table.43.Yesterday, I __________ (go) to the supermarket to buy some groceriesWhen I__________ (arrive) there, I __________ (realize) that I __________ (forget) to bring my shopping listSo, I __________ (decide) to call my sister and ask her for helpWhile I__________ (wait) for her to pick up the phone, I __________ (see) a friend from schoolWe __________ (chat) for a few minutes before I __________ (remember) my shopping listThen I __________ (finish) my shopping.44.Choose the correct sentence with the appropriate use of "much":A. How much apples do you want?B. How many apples do you want?C. How much milk do you want?D. How many milk do you want?45.I __________ (1) (not/understand) the question in the test, so I __________ (2) (ask) my teacher for help. She __________ (3) (explain) it to me very clearly, and after that, I __________ (4) (answer) the question correctly. I __________ (5) (be) very happy whenI __________ (6) (see) my score.46.I __________ (1) (just/finish) my homework when my mother __________ (2) (ask) me to help her with the housework. I __________ (3) (be) a little tired, but I __________ (4) (agree) to help her. After we __________ (5) (finish) the cleaning, we __________ (6) (sit) down together and __________ (7) (have) a cup of tea.47.Which sentence uses the word “everyone” correctly?A. Everyone are invited to the party.B. Everyone is invited to the party.C. Everyone were invited to the party.D. Everyone invite to the party.st weekend, my friends and I __________ (1) __________ (have) a great time at the amusement park. We __________ (2) __________ (arrive) there early in the morning, and the park __________ (3) __________ (be) already crowded with people. First, we__________ (4) __________ (go) on the roller coaster, and then we __________ (5)__________ (try) the Ferris wheel. It __________ (6) __________ (be) so high that we__________ (7) __________ (feel) a little scared, but we __________ (8) __________(enjoy) the view of the whole city from the top. After lunch, we __________ (9)__________ (decide) to go to the haunted house, which __________ (10) __________ (be) much scarier than we __________ (11) __________ (expect). We __________ (12) __________ (laugh) and __________ (13) __________ (have) so much fun that we__________ (14) __________ (stay) until the park __________ (15) __________ (close).49.What is the correct past tense of "go"?A. GoesB. WentC. GoneD. Going50.Which of the following sentences is in the past simple tense?A. I am playing football right now.B. I have played football.C. I played football yesterday.D. I will play football tomorrow.(答案及解释)。

小学PEP六年级上册英语模拟(答案及题解)

小学PEP六年级上册英语模拟(答案及题解)(共50道题)下面有答案和解题分析一、综合题1.I am going to the __ this Saturday to see my favorite movie. It’s about a __ who saves the world from danger. I love watching action movies because they are very __. After the movie, I am going to eat some __ and drink a soda.2.My family __________ (1) a holiday last month. We __________ (2) to the mountains for hiking. The weather __________ (3) cold, but we __________ (4) warm clothes. We __________ (5) a campfire at night and __________ (6) marshmallows. It __________ (7) a lot of fun, and we __________ (8) to go back next year.3.Anna is learning to play the piano. She starts by practicing some __________. Aftera few days, Anna learns how to play a simple __________. She feels very __________ because she can play a whole song by herself. Her parents are very proud of her.4.Which of these animals can fly?A. FishB. DogC. BirdD. Cow5.I _______ (speak) English at school.6.Which of these is used to clean your teeth?A. ToothbrushB. SpoonC. PlateD. Fork7.Which of these is a shape?A. CircleB. SpoonC. PlateD. Cup8.Which of the following is a school subject?A. CookingB. MathC. SwimmingD. Shopping9.They _______ (does / do / did) not like sports.10.He _______ (not/like) to play the piano.11.I like to visit my grandparents on weekends. They live in a small house near the ______. I enjoy walking around the garden with my grandmother and looking at thebeautiful ______. We also pick some fresh ______ to make a salad for lunch. After eating, we like to sit outside and enjoy the ______ weather.12.We _______ (does / do / did) not like broccoli.13.She _______ (visit) her grandmother last weekend.14.Which one is a season?A. MondayB. WinterC. BreakfastD. Noon15.They _______ (not/speak) French.16.Which of these is a vegetable?A. BananaB. CarrotC. AppleD. Pear17.Which of these is used to clean the floor?A. MopB. ChairC. ForkD. Table18.Which one is the smallest?A. ElephantB. MouseC. CatD. Tiger19.My father _______ a bike.20.Can you ______ the book?A. SeeB. HearC. SpeakD. Write21.We _______ (have) a big lunch today.22.My mother is a teacher. She works at a school near our house. Every day, she teaches English to young students. She loves her job and helps her students learn new things. After school, we sometimes go to the library together.23.I _______ (eat) dinner at 6 p.m. every day.24.Today is my birthday. I __________ (1) a big party at home. My friends__________ (2) to my house at 3:00 PM. We __________ (3) games, __________ (4) cake, and __________ (5) many funny pictures. My parents __________ (6) me a new bike. I __________ (7) very happy today.25.Which one is a fruit?A. CarrotB. TomatoC. OnionD. Lettuce26.She _______ (sing) songs every morning.27.Anna is learning to play the __________. She practices every day for an hour. Today, her teacher is teaching her a new __________. Anna focuses and plays the__________ perfectly. After the lesson, she feels proud of her improvement. She plans to perform in the school __________ next month.28.I wake up at 6:30 every morning. After I wake up, I brush my teeth, wash my face, and then get dressed. I have breakfast with my family. My favorite breakfast food is pancakes with syrup.29.What do you use to cut paper?A. PenB. ScissorsC. GlueD. Eraser30.They _______ (study) English in the morning.31.My family _______ (take) a trip to the mountains last winter. We _______ (stay) ina small cabin near the forest. Every day, we _______ (hike) through the snow and_______ (enjoy) the beautiful views. At night, we _______ (sit) by the fire and _______ (tell) stories. It _______ (be) a peaceful and fun vacation.32.I _______ (not/like) rainy days.33.Which one is the opposite of "fast"?A. SlowB. QuickC. TallD. Light34.She _______ (have) a birthday party this weekend.35.We _______ (study) for the test next week.36.She _______ (watch/watches) TV after school.37.Which one is a fruit?A. CarrotB. TomatoC. OnionD. Potato38.My grandmother ______ (live) in a small house in the countryside. She ______ (have) a beautiful garden, and she ______ (grow) flowers and vegetables. Last summer, I ______ (visit) her, and we ______ (pick) some tomatoes together.39.Billy and his family are going to __________ (1) for a holiday. They will travel by __________ (2). Billy is excited because he loves to see new __________ (3). His favorite part of the trip will be visiting a big __________ (4). In the evening, they will have dinner at a local __________ (5).40.Which of these is a number?A. SevenB. TableC. SpoonD. Chair41.What do you use to cut your nails?A. ScissorsB. CombC. KnifeD. Nail clipper42.Jack and his friends are going on a field trip to a museum. They arrive and see many __________, including __________ and __________. Jack takes a picture of a big __________ with his __________. After the trip, Jack writes in his __________ about what he saw and learned at the museum.43.There _______ a dog in the park.A. isB. areC. wasD. be44.I _______ (be) very tired after the game.45.We _______ (go) on a school trip tomorrow.46.What is the opposite of "big"?A. TallB. ShortC. LittleD. Small47.I _______ (read) a book yesterday. It _______ (be) about a young girl who _______ (go) on an adventure. The story _______ (be) very exciting, and I _______ (finish) it in one day. I _______ (decide) to read more books like that.48.I _______ (help/helps) my parents with the housework.49.Which one is the opposite of "big"?A. SmallB. TallC. HeavyD. Fast50.Which of these is a means of transportation?A. BicycleB. SpoonC. PlateD. Fork(答案及解释)。

小升初——数学应用题专题50道带答案(模拟题)

小升初——数学应用题专题50道一.解答题(共50题, 共288分)1.一辆客车从甲地开往乙地, 去时速度是40千米/小时, 返回时速度是60千米/小时, 返回时的速度比去时的速度提高了百分之几?2.观察下图, 回答问题。

（1）2和－2与0距离相等吗？（2）用正数和负数还可以表示哪些具有相反意义的量？3.在生活中, 找出三种相关联的量, 并写明这三种量在什么情况下成比例关系。

4.哈尔滨的气温的－30℃, 北京的气温比哈尔滨高19℃, 请问北京的气温是多少度?5.王大爷把5000元钱存入银行, 定期2年, 如果年利率是3.75%, 到期后, 王大爷一共可以取回多少元？6.小兵和小明进行智力竞赛, 答对记+1分, 答错记-1分。

看一看下表, 说一说谁的成绩好, 他们分别答错了哪几题。

7.一个压路机的滚筒横截面的直径是1米, 长是1.8米, 转一周能压路多少平方米?如果每分钟转8周, 半小时能压路多少平方米?8.在下图中描点表示表中的数量关系, 连接各点你发现了什么？9.在一次捐款活动中, 实验小学五年级学生共捐款560元, 比四年级多捐40%, 六年级学生比五年级少捐/。

四、六年级学生各捐款多少元？10.在六(1)班新年联欢会的“猜谜”抢答比赛中, 规定答对1题得5分, 答错1题得－8分, 不答者得0分, 淘淘共得12分, 他抢答几次？答对几道题？答错几道题？11.如果x和y成正比例关系, 当x=16时, y=0.8；当x=10时, y是多少？如果x和y成反比例关系, 当x=16时, y=0.8；当x=10时, y是多少？12.一个长方体木块长、宽、高分别是5cm、4cm、3cm。

如果用它锯成一个最大的正方体, 体积要比原来减少百分之几？13.甲、乙两种商品, 成本共2200元, 甲商品按20％的利润定价, 乙商品按15％的利润定价。

后来都按定价的九折打折出售, 结果仍获利131元。

甲商品的成本是多少元?14.一个圆柱形的金鱼缸, 底面半径是40cm, 里面有一座假山石全部浸没在水中（水没有溢出）, 取出假山石后, 水面下降了5cm。

小升初模拟测试(一) 答案及详细解答过程

小升初模拟测试题（90分钟完卷）姓名：成绩：一、填空。

（2分/题）1、把3米长的铁丝平均分成8段，每段占全长的的（ 12.5 ）%，每段长（ 0.375或3/8 ）米。

易错点：无论铁丝本身多长，平均分成8段，每段必然占全长的1/8.2、甲数的40%是乙数的4/7，已知乙数是140，甲数是（ 200 ）。

简单，略3、一辆汽车行114 千米用汽油18升，这辆汽车平均每行1百千米耗油（ 10 ）升。

简单，略4、从学校到书店笑笑用了40分钟，淘气用了50分钟，笑笑比淘气的速度快（ 25 ）%。

此题为易错题，主要错在容易做成（50-40）÷50=20% 。

这是因为题上问的是速度而学生没有注意整成了时间。

正解：（1）因为在路程相等的前提下，速度与时间成反比，所以笑笑速度：淘气速度=50：40。

所以笑笑比淘气速度快（50-40）÷40=25% （注：此方法同学们还没学过反比例，但对于聪明的孩子来说，一点就会）（2）用工程问题的解题思想：由题可知，笑笑的工效（也即速度）为140 ，淘气工效为150。

所以笑笑比淘气速度快（140 -150 ）÷150=25% 注：此题为常考题，必须过关。

建议家长过一周后再抽查，直到过关为止。

5、学校进行建国60周年知识比赛，小明已经答对了26道题，答错了6道，如果他想使自己的答题正确率达到85%，那么至少还要连续答对（ 8 ）道题。

此题有多种解法，其中方程最为简洁。

设他至少还要连续答对x 道，则他已答了 26+6+x 道其中对了 26+x 道，显然有已对的道数=85%×总共已答的道数所以可列出方程:26+x= (26+6+x )×85%,并求解。

解答过程略。

注：此题第一是同学们不易想到用方程。

也可以说同学们现在大多数还不太具有方程思想。

第二设未知数设出来后不会用未知数去表达另一些未知的量。

如上题的前半部分。

小学PEP3年级英语模拟(答案及解析)

小学PEP3年级英语模拟(答案及解析)(共50道题)下面有答案和解题分析一、综合题1.This weekend, we __________ (go) camping in the forest. We __________ (set) up tents and __________ (cook) food over the campfire. At night, we __________ (tell) stories and __________ (look) at the stars. I __________ (hope) it __________ (be) a fun adventure!2.Which one is a fruit?A. CarrotB. AppleC. PotatoD. Cucumber3.I _______ (read) books before bed.4.Which of these is a shape?A. TriangleB. CarC. TreeD. Chair5.Choose the sentence that uses a conjunction correctly.A. I want to go to the park, and I am tired.B. I want to go to the park but I am tired.C. I want to go to the park because I am tired.D. All of the above.6.He _______ (not) like doing homework.7.They _______ (study/studies) hard for their exams.8.I _______ (not) like vegetables.9.We __________ (go) to the zoo last Sunday. We __________ (see) many animals, like lions, tigers, and monkeys. The weather __________ (be) sunny and warm, and we __________ (have) a wonderful time.10.Which of these is used to cut food?A. KnifeB. SpoonC. PlateD. Fork11.Which of these is a day of the week?A. TuesdayB. SpoonC. ChairD. Table12.We _______ (have) lunch at 12:00 p.m.13.I _______ (not) watch movies on weekdays.14.What is the opposite of "in"?A. OutB. UpC. DownD. Left15.We _______ (play) basketball on Sundays.16.I woke up early this morning because I had to go to school. I put on my __ and packed my __ with books. After breakfast, I walked to the __ with my sister. We arrived at school just in time for the first __.17.I _______ (visit) my grandparents next weekend.18.Which of these is a color?A. RedB. CarC. ChairD. Table19.Which of these is an animal?A. TigerB. SpoonC. BookD. Table20.Which one is used for writing?A. TableB. PenC. ChairD. Spoon21.We _______ (have) a big test next Monday.22.Which of these is a drink?A. CoffeeB. BookC. ChairD. Plate23.They _______ (is / are / am) watching TV at the moment.st weekend, my family ________ (go) to the beach.25.I _______ (not/see) him for two weeks.26.I _______ (not/understand) the answer.27.We _______ (play) with our toys at home.28.Which of these is a vegetable?A. AppleB. GrapeC. CarrotD. Banana29.I ________ (want/wants) to be a teacher.30.Which animal is known for being the king of the jungle?A. TigerB. LionC. BearD. Elephant31.We _______ (is / are / am) going to the museum tomorrow.32.We ______ (visit) our grandparents last weekend. They ______ (live) in a big house near the beach. We ______ (have) a wonderful time. My grandmother ______ (cook) delicious food, and we ______ (play) games in the garden.33.At the moment, I ______ (sit) in my room and ______ (do) my homework. My brother ______ (watch) TV in the living room, and my parents ______ (prepare) dinner in the kitchen. We ______ (plan) to have spaghetti tonight. Yesterday, we ______ (have) pizza, and it ______ (be) delicious.34.I _______ (not/not) like rainy days.35.What do we use to clean our teeth?A. ToothbrushB. SpoonC. PlateD. Fork36.I _______ (play) with my friends after school.37.Which one is an animal?A. CatB. ChairC. PlateD. Table38.She _______ (be) very happy today.39.They _______ (go/goes) to the zoo every weekend.40.My brother always ______ (play) soccer after school. Yesterday, he ______ (play) with his friends for two hours. After that, he ______ (come) home and ______ (take) a shower.41.What is the opposite of "hot"?A. WarmB. ColdC. CoolD. Freezing42.My school is very __________. We have a large __________ with many different __________. I like to go to the __________ after school to read books. There is also a__________ where we play basketball. My favorite subject is __________ because I love learning about the world. I study __________ every day, and I try my best to__________.43.We ________ (visit) the zoo last weekend. There ________ (be) many animals in the zoo. We ________ (see) lions, tigers, and bears. My favorite animal ________ (be) the elephant because it ________ (be) very big and gentle. After the zoo, we ________ (go) to a nearby restaurant and ________ (eat) lunch.44.Yesterday, I ______ (go) to the zoo with my family. We ______ (see) many animals, like lions, elephants, and monkeys. I ______ (take) a lot of pictures, and my little brother ______ (buy) a toy elephant. We ______ (have) a wonderful day at the zoo and ______ (decide) to visit again next month.45.He _______ (do) his homework now.46.What do you use to write on paper?A. PencilB. SpoonC. PlateD. Shoe47.I _______ (see) a dog in the park.48.Which of these animals can fly?A. DogB. FishC. BirdD. Cow49.Lily is learning to __________ (1) the guitar. She started taking lessons last month, and now she can play some simple __________ (2). Today, Lily is practicing a song she learned in class. She is very proud because she can play the __________ (3) without making any mistakes. After practicing, Lily takes a break and enjoys a __________ (4) with her family.50.This is my mother. She __________ (1) a teacher. She __________ (2) at school every day. In the morning, she __________ (3) her students. After school, she__________ (4) home and __________ (5) dinner for our family. We __________ (6) together and __________ (7) a good time. My mother __________ (8) very caring.(答案及解释)。

PEP小学四年级上册英语模拟(答案及解析)

PEP小学四年级上册英语模拟(答案及解析)(共50道题)下面有答案和解题分析一、综合题1.She _______ (talk) to her friend on the phone right now.2.Which of these is a bird?A. DogB. CatC. LionD. Eagle3.Which of these is a mode of transportation?A. BikeB. BedC. CupD. Pillow4.I _______ (not/understand) the lesson yesterday.5.He _______ (work) at the library on Sundays.6.Which of these is used to write on a board?A. PenB. ChalkC. EraserD. Brush7.We _______ (visit) our grandparents next summer.8.What is the opposite of "happy"?A. SadB. TallC. ColdD. Hot9.My brother __________ (1) a new bike for his birthday. It __________ (2) red, and it __________ (3) very fast. He __________ (4) to ride it every day after school. I__________ (5) to ride a bike too, but I __________ (6) to learn first.10.I __________ (study) for my English test right now. I __________ (read) my textbook and __________ (practice) vocabulary. Yesterday, I __________ (review) some grammar rules, and I __________ (feel) ready for the test tomorrow. After I __________ (finish) studying, I __________ (watch) my favorite TV show.11.Which one is a vehicle?A. BicycleB. ChairC. TableD. Book12.Which one is a vegetable?A. AppleB. PearC. CarrotD. Orange13.Which of these is a holiday?A. MondayB. ChristmasC. TuesdayD. Wednesday14.This morning, I __________ (wake) up early and __________ (go) for a run. The weather __________ (be) nice, and I __________ (feel) very energetic. After my run, I __________ (have) a healthy breakfast with eggs, toast, and fruit. Now, I __________ (be) ready for school.15.We _______ (travel) to many places last summer.16.We _______ (watch) TV last night.17.My brother _______ (study) math right now.18.Which one is a color?A. ChairB. GreenC. DogD. Cup19.They _______ (have) lunch at 12:00 every day.20.We _______ (play) tennis this Saturday.21.Which animal can swim?A. DogB. FishC. LionD. Tiger22.Which one is a shape?A. CircleB. BallC. CarD. Tree23.I _______ (play) soccer with my friends after school.24.Which of these animals can fly?A. CatB. DogC. FishD. Bird25.Which sentence uses the correct subject pronoun for the word "Tom"?A. He is playing football.B. She is playing football.C. They is playing football.D. I is playing football.26.Which one is a month of the year?A. OctoberB. SpoonC. PlateD. Chair27.I _______ (go) to bed at 10 o’clock.28.They _______ (not) play the piano very well.29.I ______ (read) a book right now. I ______ (like) reading adventure stories. Last weekend, I ______ (finish) a book about pirates. It ______ (be) very exciting, and I______ (want) to read more books like it.30.I _______ (not/understand) the question.31.He _______ (study) math every day.32.My brother _______ (like) to watch cartoons.33.In my house, we __________ (1) a big living room and two small bedrooms. The kitchen __________ (2) on the left side of the house, and the bathroom __________ (3) next to the kitchen. My bedroom __________ (4) a bed, a desk, and a chair. There__________ (5) also a big window in my room. I __________ (6) like my room because it is very cozy.34.Which of these is used to drink?A. PlateB. CupC. KnifeD. Spoon35.What time of day do you eat breakfast?A. MorningB. AfternoonC. EveningD. Night36.We _______ (eat) dinner at 7 p.m. every day.37.They _______ (eat) lunch in the restaurant.38.We _______ (have) a picnic next Saturday.39.I _______ (like/likes) to ride my bike.40.What do you eat for breakfast?A. PizzaB. SaladC. EggsD. Ice cream41.My parents _______ (work) in a hospital.42.They _______ (not) study at the weekend.43.Which of these is a season?A. JanuaryB. SummerC. MarchD. Monday44.Yesterday afternoon, I _______ (visit) my grandmother’s house. She _______ (cook) a big dinner for the family. When I _______ (arrive), my cousins _______ (play) outside in the garden. We _______ (decide) to join them. After playing, we _______ (sit)down at the table and _______ (eat) together. My grandmother _______ (tell) us stories about when she _______ (be) young. It _______ (be) a lovely afternoon, and we _______ (have) a great time.45.Which one is a holiday?A. MondayB. January 1stC. TuesdayD. Thursday46.Which of these is a number?A. DogB. ThreeC. TableD. Plate47.Tom is __________ (tall) than Jim.48.I _______ (be) very happy today.49.What do we wear to keep warm in winter?A. JacketB. ShortsC. TshirtD. Sandals50.We _______ (have) a big garden at home. Every year, my family _______ (plant) flowers, vegetables, and fruit trees. This year, we _______ (grow) tomatoes, cucumbers, and strawberries. I usually _______ (water) the plants in the morning.(答案及解释)。

红楼梦50道测试题带答案

1. 《红楼梦》的作者是谁？答案：曹雪芹2. 《红楼梦》原名是什么？答案：《石头记》3. 《红楼梦》中贾宝玉佩戴的通灵宝玉来自何处？答案：女娲补天遗留下来的顽石幻化而成4. 贾宝玉梦游太虚幻境时，警幻仙姑给他看了哪本书册？答案：《金陵十二钗正册》、《金陵十二钗副册》、《金陵十二钗又副册》5. 《红楼梦》中的“金陵十二钗”包括哪些主要女性角色？答案：林黛玉、薛宝钗、贾元春、贾探春、史湘云、妙玉、贾迎春、贾惜春、王熙凤、贾巧姐、秦可卿、李纨6. “霁月难逢，彩云易散。

心比天高，身为下贱。

”这是对《红楼梦》中哪个人物的判词？答案：晴雯7. 贾宝玉的大丫鬟袭人最后嫁给了谁？答案：蒋玉菡8. 《红楼梦》中，“荣国府”的开创者是？答案：贾源9. “一个是阆苑仙葩，一个是美玉无瑕。

”这里的“阆苑仙葩”和“美玉无瑕”分别指谁？答案：“阆苑仙葩”指林黛玉，“美玉无瑕”指贾宝玉10. 贾府的四位小姐分别叫做什么？答案：贾元春、贾迎春、贾探春、贾惜春11. 贾母的贴身大丫鬟是谁？答案：鸳鸯12. 贾府中的“冷子兴演说荣国府”揭示了什么？答案：揭示了贾、史、王、薛四大家族的复杂关系及贾府的现状与未来预兆13. 王熙凤的丈夫是谁？答案：贾琏14. 林黛玉进贾府时带了谁同行？答案：林黛玉进贾府时带了自己的奶妈和贴身丫鬟雪雁15. “机关算尽太聪明，反误了卿卿性命”是对《红楼梦》中哪个人物的评价？答案：王熙凤16. 贾宝玉的表妹兼未婚妻是谁？答案：薛宝钗17. 贾府的四个世交之家分别是什么？答案：贾家、史家、王家、薛家（合称“四大家族”）18. 贾宝玉为纪念哪位死去的丫鬟修建了“芙蓉诔”？答案：晴雯19. 贾府的四位公子分别是谁？答案：贾珠、贾宝玉、贾环、贾兰20. 贾宝玉梦中遇见甄宝玉时，二人互换了什么？答案：梦境中交换了彼此的身份和生活环境21. 在《红楼梦》中，贾宝玉住在大观园的哪个院子？答案：怡红院22. 贾宝玉出生时嘴里含着什么？答案：通灵宝玉23. 林黛玉的父亲是？答案：林如海24. 《红楼梦》中的“金陵十二钗正册”第一名是谁？答案：林黛玉25. “宝黛初会”时，贾宝玉为何称呼林黛玉为“颦颦”？答案：因为他觉得林黛玉长得像《西厢记》中的崔莺莺，崔莺莺有个别名“颦儿”26. 贾母最喜欢的儿子是谁？答案：贾政27. 贾府的荣国府和宁国府的当家人分别是谁？答案：荣国府当家人是贾赦，宁国府当家人是贾珍28. 《红楼梦》中的“元妃省亲”是现实生活中哪个历史人物的影射？答案：曹家的一位女子（据推测可能是曹雪芹的姑母曹佳氏，乾隆皇帝的妃子）29. 贾府中的“刘姥姥进大观园”表现了怎样的社会现象？答案：反映了封建社会贫富悬殊的阶级对立和社会底层人民的生活艰辛30. “滴翠亭杨妃戏彩蝶”中的“杨妃”指的是谁？答案：薛宝钗31. 《红楼梦》中，贾宝玉的表妹兼恋人林黛玉擅长何种乐器？答案：琴32. 《红楼梦》中，宝黛两人一起读的戏曲剧本是？答案：《西厢记》33. 贾府中，贾宝玉的胞弟是谁？答案：贾环34. “元妃省亲”时，她为大观园中的哪些建筑题了名？答案：蘅芜苑、怡红院、潇湘馆、稻香村、秋爽斋、暖香坞、藕香榭等35. 《红楼梦》中，贾宝玉梦游太虚幻境时，饮的茶名是什么？答案：千红一窟（哭）36. 贾母的侄孙女，也是贾府中的重要人物，她是？答案：史湘云37. 贾府中，性格刚烈、敢于抗争的丫鬟是谁？答案：晴雯38. “木石前盟”是指《红楼梦》中哪两个人物之间的情感联系？答案：贾宝玉和林黛玉39. 贾府中，性格泼辣、精明能干，掌管贾府大小事务的女主人是谁？答案：王熙凤40. 《红楼梦》中，贾宝玉梦游太虚幻境时看到的“薄命司”中记录了许多女子的命运，暗示了小说怎样的主题？答案：暗示了《红楼梦》的悲剧色彩和众多女子悲惨的命运41. 《红楼梦》中，贾宝玉与薛宝钗结婚时，林黛玉正在做什么？答案：病重，最终在宝玉婚礼当天病逝42. 贾府中，哪位丫鬟因误传消息导致尤二姐吞金自杀？答案：王熙凤手下的丫鬟善姐43. 贾府中，谁曾在栊翠庵品茶论禅，并留下“禅心已作沾泥絮，莫向春风舞鹧鸪”的诗句？答案：妙玉44. 《红楼梦》中，贾宝玉的乳名是什么？答案：宝二爷（乳名则为“宝玉”）45. 《红楼梦》中，贾府的经济状况开始明显恶化，是因为发生了什么大事？答案：元妃薨逝，失去了皇宫内的强大支柱，加上家族内部挥霍浪费严重，导致经济逐渐崩溃46. “机关算尽太聪明，反算了卿卿性命”，这句话形容的是小说中的哪位人物？答案：王熙凤47. 贾府中，哪位丫鬟在贾宝玉挨打后为其送药，不幸摔碎了瓷盅，撞柱而亡？答案：晴雯48. 《红楼梦》中，贾府的两位姑娘联袂填词，创作了一首《菊花诗》，她们分别是？答案：林黛玉和薛宝钗49. 《红楼梦》中的“金陵十二钗”分为正册、副册、又副册，又副册首位人物是谁？答案：晴雯50. 贾宝玉出家后，身边陪伴他的丫鬟是谁？答案：麝月。

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Wide9.We __________ (watch) the movie when the lights __________ (go) outIt__________ (be) very scary, but we __________ (decide) to finish it anyway.10.Which word is an adjective in the following sentence? "She is a kind teacher."A. TeacherB. KindC. IsD. She11.What is the correct form of the verb in the sentence: "I _______ to the store yesterday."?A. WentB. GoC. GoingD. Goes12.Which sentence correctly uses "few" and "little"?A. I have a little books.B. I have a few books.C. I have a little money.D. I havea few money.13.Which sentence correctly uses "some" in a positive statement?A. I don’t have some mo ney.B. I have some money.C. I have any money.D. I have no money some.14.Choose the correct sentence:A. He can plays the guitar very well.B. He can play the guitar very well.C. He can playing the guitar very well.D. He can played the guitar very well.15.Which of the following sentences correctly uses "there is"?A. There is five books on the table.B. There is a book on the table.C. There is some books on the table.D. There are a book on the table.16.By the time the school bell __________ (ring) tomorrow, we __________ (finish) all the tests. We __________ (study) hard for this exam for weeks, and I __________ (believe) that we __________ (do) well. Our teacher __________ (say) that we__________ (need) to review the key points before the test, so we __________ (make) a plan to review everything together. After the exam, we __________ (celebrate) our success.17.Which of the following sentences is correct?A. She has been to the library yesterday.B. She has gone to the library yesterday.C. She went to the library yesterday.D. She is going to the library yesterday.18.Which of the following sentences correctly uses "much" or "many"?A. How much books do you have?B. How many books do you have?C. How much money do you have?D. 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Although it __________ (10) still cloudy, we__________ (11) enjoy our time together.23.Choose the correct word to complete the sentence: "She is the __________ student in the class."A. more intelligentB. most intelligentC. intelligentD. intelligenter24.Choose the correct past tense of "go".A. GoedB. WentC. GoingD. Goes25.I __________ (1) __________ (learn) English by myself. At first, it __________ (2) __________ (be) difficult, but after a few months, I __________ (3) __________ (improve) a lot. I __________ (4) __________ (practice) speaking with my friends, and now I __________ (5) __________ (feel) more confident about my language skills.26.Choose the correct qu estion form: “_______ she like playing tennis?”A. DoesB. DoC. IsD. Are27.Which sentence is in the correct order for a wh-question?A. What you do in the morning?B. What do you do in the morning?C. Do you what do in the morning?D. 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They __________ (5) (be) so big and strong. Then, we__________ (6) (walk) around and __________ (7) (watch) the monkeys. They__________ (8) (play) and __________ (9) (jump) from tree to tree. It __________ (10) (be) a great day, and we __________ (11) (have) a wonderful time.34.Choose the correct sentence:A. She go to the park every day.B. She goes to the park every day.C. She going to the park every day.D. She is goes to the park every day.35.Which of the following sentences is correct?A. She plays the piano good.B. She plays the piano well.C. She play the piano good.D. She plays good the piano.36.Choose the sentence that correctly uses the word "because":A. I am late because the bus was slow.B. I am late because of the bus was slow.C.I am late because of the slow bus. D. I am late because slow the bus.37.If I __________ (know) about the problem, I __________ (help) you solve itBut I __________ (not, hear) anything until nowNext time, you __________ (tell) me earlier, so I __________ (be) able to give you a hand.38.Choose the correct word to complete the sentence: I __________ to the supermarket yesterday.A. goB. wentC. goingD. will go39.Choose the correct sentence:A. She can sings very well.B. She can singing very well.C. She can sing very well.D. She sings can very well.40.Which sentence uses "few" correctly?A. There are a few books on the shelf.B. There are few books on the shelf.C. There is few books on the shelf.D. There are few book on the shelf.41.We __________ (live) in this city for over ten years nowWhen we __________ (move) here, the city __________ (be) much smallerThere __________ (be) only a few buildings, but now there __________ (be) many tall skyscrapersWe __________ (see) a lot of changes in the past few years, and we __________ (feel) that the city __________ (become) more modern.42.Which of the following sentences is in the future tense?A. I am reading a book now.B. I will read a book tomorrow.C. I read a book every day.D. I have read a book.43.Which of the following sentences is correct?A. I has a new book.B. I have a new book.C. I am have a new book.D. I had a new book.44.You __________ (must) be careful when crossing the streetIt __________ (be) very dangerous to run.45.Choose the correct form of the verb in the past tense: I __________ a delicious dinner yesterday.A. cookB. cooksC. cookedD. cooking46.I ______ (be) really tired last night, but I ______ (not/go) to bed earlyInstead, I______ (stay) up late to finish my homeworkI ______ (wish) I ______ (go) to bed earlier because I ______ (feel) very tired this morning.47.Choose the correct sentence:A. I have never been to Japan.B. I never have been to Japan.C. I have been never to Japan.D. Never I have been to Japan.48.If it ______ (be) sunny tomorrow, we ______ (go) to the beach.49.Which of the following is the correct way to form the past tense of the verb "play"?A. PlayedB. PlayC. PlaysD. Playing50.Choose the correct word to complete the sentence: We _______ dinner at the restaurant next Friday.A. haveB. hadC. will haveD. having(答案及解释)。

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买一个文具盒多少钱？9.两只小兔子拔萝卜。

白兔拔了14个，给灰兔6个后，它们俩的萝卜就同样多。

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小鸡养了几只？16.小朋友们正筹备着寒假里的活动，他们一共分成两组。

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小学6年级上册英语模拟含答案及解析(共50道题)下面有答案和解题分析一、综合题1.She _______ (dance) beautifully.2.I _______ (be) tired after a long day.3.She _______ (like/likes) ice cream.4.I _______ (have / has / had) a brother and a sister.5.Which of these is used to open a door?A. KeyB. SpoonC. ChairD. Table6.I _______ (have / has / had) a great time at the party.7.He _______ (drink) tea every morning.8.This morning, I _______ (forget) to bring my homework to school. I _______ (feel) very worried, but my teacher _______ (be) kind and _______ (give) me extra time to finish it. I _______ (finish) the homework during recess.9.Anna’s family is having a picnic in the __________ (1). They brought a big__________ (2) to sit on. Anna and her brother Ben are playing __________ (3), while their parents are making sandwiches. After eating, they will take a walk by the__________ (4).10.Which season comes after winter?A. SummerB. FallC. SpringD. Autumn11.This afternoon, we ______ (go) to the park. I ______ (bring) my bike, and my friend Sarah ______ (bring) her skateboard. We ______ (ride) around and ______ (have) lots of fun.12.She _______ to the movies every Saturday.13.What is the opposite of "tall"?A. BigB. ShortC. LongD. Thin14.Which of these animals is a mammal?A. SharkB. WhaleC. FishD. Crab15.He _______ (wash) his car every Saturday.16.I _______ (eat) lunch at 12:00.17.They ________ (play) volleyball now.18.Which one is a pet?A. DogB. ElephantC. ZebraD. Bear19.Which one is a body part?A. KneeB. SpoonC. PlateD. Chair20.What is a baby cat called?A. PuppyB. KittenC. CalfD. Lamb21.He _______ (play) the guitar.22.I _______ (go) to school by bike every day.23.We _______ a test tomorrow.24.My dad ______ (work) in an office. He ______ (leave) for work at 8:00 every morning. After work, he sometimes ______ (go) to the gym to exercise. I ______ (like) to spend time with him, so on weekends we ______ (play) basketball together.25.Yesterday, we ______ (go) to the beach with our friends. The weather ______ (be) sunny and warm, so we ______ (swim) in the sea and ______ (build) sandcastles. My brother ______ (find) a beautiful seashell, and we ______ (take) it home as a souvenir. We ______ (have) a wonderful day at the beach.26.I _______ (like) playing with my friends.27.How many months are in a year?A. 10B. 12C. 14D. 2028.They _______ (read) books every evening.29.She _______ (is / are / am) going to the supermarket now.30.He _______ (visit) his uncle next month.31.Tom ______ (study) hard for his English test. Yesterday, he ______ (spend) three hours reviewing his notes. Today, he ______ (feel) confident about the test. He ______ (believe) he ______ (do) well.32.I _______ (go/goes) to bed at 9 o’clock.33.She _______ (have) a red dress.34.My little brother _______ (like) to play with his toys. Every day, he _______ (play) with his cars and trucks. Sometimes, he _______ (ask) me to play with him, but I_______ (be) usually too busy with my homework.35.I __________ (not/like) vegetables when I __________ (be) a child, but now I__________ (love) them. Last week, I __________ (eat) broccoli for the first time, and I __________ (enjoy) it!36.Which of these is a number?A. ChairB. ThreeC. TableD. Spoon37.They _______ (be) at the beach last weekend.38.What color is the sky on a clear day?A. RedB. BlueC. YellowD. Green39.What is the opposite of "empty"?A. fullB. bigC. longD. small40.I _______ (watch) a movie with my friends next weekend.41.He _______ (speak) Chinese very well.42.They _______ (not/come) to the party yesterday.43.She _______ (go) to the beach every summer.44.Which animal can fly?A. DogB. FishC. BirdD. Cow45.They _______ (take) the bus to school every day.46.I _______ (not/like) to get up early on weekends.47.I ______ (enjoy) my vacation in the mountains last summer. We ______ (hike) every day and ______ (see) many beautiful views. One day, we ______ (find) a small lake and ______ (swim) in it. It ______ (be) a great experience.48.He _______ (be) a teacher at our school.49.Which sentence is correct?A. He go to school every day.B. He goes to school every day.C. He going to school every day.D. He gone to school every day.50.Which of these is a fruit?A. CarrotB. PotatoC. OrangeD. Cucumber(答案及解释)。

小学PEP4年级上册英语模拟[答案和解析]

小学PEP4年级上册英语模拟[答案和解析](共50道题)下面有答案和解题分析一、综合题1.Tom and his friends are going to the amusement park today. They are excited to ride the __________, the __________, and the __________. After they finish their rides, they will buy some __________ to eat. Tom loves cotton candy, and his friend Lucy prefers __________. They plan to take a picture together on the __________ to remember the fun day.2.Which of the following is a number?A. FourB. GreenC. CarrotD. Table3.They _______ (have) a party next weekend.4.She _______ to the cinema tomorrow.5.How do you say "早上好" in English?A. Good eveningB. Good morningC. Good afternoonD. Good night6.Which of these is a shape?A. CircleB. TableC. ChairD. Dog7.Which of these is a vegetable?A. CarrotB. BananaC. PearD. Tomato8.Which of these animals can swim?A. DogB. ElephantC. FishD. Tiger9.They _______ (like) ice cream.10.Which color is a banana?A. BlueB. GreenC. YellowD. Red11.They _______ (go/goes) to the park on weekends.12.We _______ (go / goes / gone) to the library every Monday.13.In the morning, I __________ (wake) up early because I __________ (have) to goto school. I __________ (get) dressed and __________ (eat) breakfast quickly. My mother __________ (drive) me to school. At school, I __________ (learn) many new things. In the afternoon, I __________ (play) with my friends, and we __________ (have) fun.14.Which of these is a cold drink?A. LemonadeB. CoffeeC. SoupD. Tea15.What do you use to eat a pizza?A. ForkB. SpoonC. KnifeD. Hands16.My favorite season is __ because the weather is warm and sunny. In the spring, flowers bloom, and the trees grow new __. I like to play outside with my friends. We go to the park to fly __ and play on the swings. Sometimes, we have picnics with sandwiches and __.17.He _______ (be) a student.18.In the evening, I __________ (1) my homework. After I __________ (2) my homework, I __________ (3) to play computer games for an hour. Then, my mom__________ (4) me to take a shower. After I __________ (5) the shower, I __________ (6) dinner with my family. We __________ (7) together every evening.19.They _______ (have) lunch now.20.I _______ (speak) Chinese at home.21.We __________ (take) a field trip to the farm last month. We __________ (see) many animals, like cows, chickens, and pigs. We __________ (pick) some apples from the trees, and we __________ (learn) how to milk a cow.22.Which one is a wild animal?A. TigerB. DogC. CatD. Fish23.They _______ (arrive) at the airport at 7:00.24.Which of the following is a type of weather?A. SunB. CloudC. RainD. All of the above25.Which one is a vegetable?A. CarrotB. BananaC. AppleD. Orange26.Every Sunday, my family ______ (go) to the park. We ______ (bring) a picnic lunch and ______ (enjoy) the sunshine. Last Sunday, we ______ (have) a great time. My little brother ______ (play) with his toys while I ______ (read) a book under a tree. It______ (be) a peaceful day.27.They _______ (study) math right now.28.What do we use to wash our hands?A. SoapB. SpoonC. PlateD. Knife29.She _______ (like) swimming in summer.30.He _______ (drink) milk every morning.31.I _______ (go/goes) to school by bike.32.Which of these is a shape?A. CircleB. ChairC. DogD. Table33.I _______ to school on foot.34.My sister _______ (have) a cat. The cat _______ (be) very cute. Every morning, my sister _______ (feed) it, and I _______ (play) with it. Yesterday, we _______ (take) the cat to the vet because it _______ (feel) sick.35.She _______ (take) a shower now.36.What do we wear on our head?A. GlovesB. HatC. ShoesD. Shirt37.Which one is a wild animal?A. DogB. TigerC. CatD. Cow38.I have two sisters. The older one is named Lily, and the younger one is named Emma. Lily likes to draw pictures, and Emma likes to play with dolls. We often play together in the living room.39.We _______ (help) our parents with the housework tomorrow.40.Which of the following is a body part?A. ChairB. ArmC. TableD. Shoe41.Which of these is the opposite of "big"?A. TallB. SmallC. HeavyD. Light42.Which of these is a shape?A. CircleB. SpoonC. ChairD. Car43.He _______ (be) very tired after running.44.He _______ (not) eat vegetables.45.What is the opposite of "slow"?A. FastB. TallC. HotD. Long46.I _______ (read) a book at this moment.47.He _______ (be) my best friend.48.They _______ (not/like) to swim in cold water.49.It is important to _______ your hands before eating to keep germs away. Washing your hands can help prevent sickness. (wash, washes, washing, washed)50.Which color is the sky on a clear day?A. BlueB. GreenC. RedD. Yellow(答案及解释)。

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Adobe Photoshop CS4 认证模拟测试题一1. 单选在Photoshop CS4中，下列哪种图像色彩模式可以支持48位的色彩深度？索引色 B. 灰度 C. RGB D. CMYK32. 多选下列哪些文件格式能在保存文件时嵌入符合ICC规范的配置文件？A.TIFFB. PSDC. JPEGD. BMP1233. 单选使用PostScript打印机进行输出时，在未知应使用何种设备进行输出的情况下，应选择何种PostScript语言层次比较保险？A.PostScript level 1B.PostScript level 2C.PostScript level 3D.以上都可以24. 单选在画笔使用中，快速调整画笔硬度的快捷键是（____）。

A.Shift+“[”和Shift+“]”B.“[”和“]”C.Ctrl（Windows操作系统）/Command（Mac OS X操作系统）+“[”和Ctrl（Windows操作系统）/Command（Mac OS X操作系统）+“]”D.Ctrl（Windows操作系统）/Command（Mac OS X操作系统）+Shift+“[”和Ctrl（Windows操作系统）/Command（Mac OS X操作系统）+Shift+“]”15. 单选在绘制像素画的过程中，下列哪个工具是最适合使用的？A.铅笔B.画笔C.喷枪16. 多选下列关于仿制图章工具的工具选项栏中“用于所有图层”选项说法正确的是（____）。

A.使用“用于所有图层”选项，可以在本图层复制其他可见图层的内容B.使用“用于所有图层”选项，可以在本图层复制其他任意图层的内容（包括不可见图层）C.使用“用于所有图层”选项，可以在本图层复制其他Photoshop图像窗口中的可见内容D.使用“用于所有图层”选项，可以在任何可见和不可见图层上复制当前图层的内容137. 多选在动作的记录中，下列哪些操作是能被动作面板记录的？A.建立选区B.输入文字C.插入路径D.使用画笔绘制图形1238. 多选下列关于批处理的说法正确的是（____）。

A.在批处理文件时，处理的同一批文件的文件格式必须是统一的B.在批处理文件时，可以使用动作面板中多个动作的组合C.“源”和“目的”的文件夹可以是同一文件夹D.批处理在保存文件时能将文件自动重命名349. 多选下列关于快捷批处理的描述正确的是（____）。

A.快捷批处理是一个独立的可执行程序，可以在操作系统不同但Photoshop版本相同的条件下通用B.快捷批处理是一个独立的可执行程序，可以直接处理文件C.快捷批处理在处理图像时，必须打开PhotoshopD.当将要处理的图像文件拖拽到快捷批处理的图标上，系统将自动打开Photoshop对图像进行处理3410. 多选下列颜色模式中，那些模式可以用于印刷？A.双色调B. 灰度C. 多通道D.索引色12311. 多选关于创建快照，以下说法正确的是：A.可以创建图像在某状态所有图层的快照B.可以创建图像在某状态时合并图层的快照C.可以创建图像在某状态时当前图层的快照D.可以创建带有本状态前历史记录信息的快照E.可以创建图像带路径的快照123512. 单选图像分辨率的单位是：A.dpiB.ppiC.lpiD.pixel213. 单选当将CMYK模式的图像转换为多通道模式时，产生的通道名称是什么？A.用数字1,2,3,4,表示四个通道B.四个通道名称都是Alpha通道C.四个通道名称为“黑色”的通道D.青色、洋红、黄色和黑色414. 单选什么色彩模式的图像转换为多通道模式时，建立的通道名称均为Alpha?A.RGB模式B.CMYK模式b模式D.多通道模式315. 单选当图像是何种模式时，所有的滤镜都不可以使用（假设图像是8位/通道）？A.CMYK模式B.灰度模式C.多通道模式D.索引颜色模式416. 单选若想增加一个图层，但在图层面板的最下面”创建新图层“的按钮是灰色不可选，原因是下列选项中的哪一个（假设图像是8位／通道）？A.图像是CMYK模式B.图像是双色调模式C.图像是灰度模式D.图像是索引颜色模式417. 单选如何才能以100%的比例显示图像?A.在图像上按住Option(Mac)/Alt(Win)的同时单击鼠标B.选择“视图>按屏幕大小缩放”命令C.双击抓手工具D.双击缩放工具418. 多选下列哪种方式可生成浮动的选区？A.使用矩形选框工具B.使用“色彩范围”命令C.使用“取出”命令D.使用魔棒工具1419. 多选下面对背景色橡皮擦工具与魔术橡皮擦工具描述正确的是：A.背景色橡皮擦工具与橡皮擦工具使用方法基本相似，背景色橡皮擦工具可将颜色擦掉变成没有颜色的透明部分B.魔术橡皮擦工具可根据颜色近似程度来确定将图像擦成透明的程度C.背景色橡皮擦工具选项栏中的“容差”选项是用来控制擦除颜色的范围D.魔术橡皮擦工具选项栏中的“容差”选项在执行后只擦除图像连续的部分12320. 多选油漆桶工具可根据像素的颜色的近似程度来填充颜色，填充的内容包括：A.前景色B.背景色C.连续图案1321. 单选下列哪个滤镜可以减少渐变中的色带(色带是指渐变的颜色过渡不平滑，出现阶梯状)：A.滤镜>杂色B.滤镜>风格化>扩散C.滤镜>扭曲>置换D.滤镜>锐化>USM锐化122. 单选以下哪个菜单命令可以查看溢色？A.选择〉色彩范围B.图像〉调整〉可选颜色C.图像〉调整〉替换颜色123. 单选当使用绘图工具时，如何暂时切换到吸管工具？A.按住Shift键B.按住Command（Mac）/Ctrl（Win）键C.按住Command+Option（Mac）/Ctrl+Alt（Win）键D.按住Option（Mac）/Alt（Win）键424. 单选下列哪个工具可以方便地选择连续的、颜色相似的区域？A.矩形选框工具B.椭圆选框工具C.魔棒工具D.磁性套索工具325. 多选文字图层中的文字信息哪些可以进行修改和编辑？A.文字颜色B.文字内容，如加字或减字C.文字大小D.将文字图层转换为像素图层后可以改变文字的字体12326. 多选关于文字图层执行滤镜效果的操作，下列哪些描述是正确的？A.首先选择“图层>栅格化>文字”命令，然后选择任何一个滤镜命令B.直接选择一个滤镜命令，在弹出的栅格化提示框中单击“是”按钮C.必须确认文字图层和其它图层没有链接，然后才可以选择滤镜命令D.必须使得这些文字变成选择状态，然后选择一个滤镜命令1227. 单选点文字可以通过下面哪个命令转换为段落文字？A.图层>文字>转换为段落文字B.图层>文字>转换为形状C.图层>图层样式D.图层>图层属性128. 多选下面对图层组描述正确的是：A.在图层选项栏中单击“创建新组”按钮可以新建一个图层组B.可以将所有链接图层放到一个新的图层组中C.按住Command/（Mac）Ctrl（Win）键的同时用鼠标单击图层选项栏中的图层组，可以弹出“图层组属性”对话框D.在图层组内可以对图层进行删除和复制12429. 单选如何设定图像的白点（白场）?A.选择工具箱中的吸管工具在图像的高光处单击B.选择工具箱中的颜色取样器工具在图像的高光处单击C.在色阶对话框中选择白色吸管工具并在图像的高光处单击D.在色彩范围对话框中选择白色吸管工具并在图像的高光处单击330. 多选扫描过程中最容易丢失层次的是：A.亮调B.中间调C.暗调D.以上都不对1331. 单选如果一张照片的扫描结果不够清晰，可用下列哪种滤镜弥补?A.中间值B.风格化M锐化D.去斑332. 单选当Photoshop警告用户内存不够时，下列哪个解决方案是可选的？A.删除动作B.清除直方图C.清除历史记录D.清除预置文件333. 多选下列哪项内容不会随着文件而存储?A.通道B.快照C.ICC色彩描述文件D.历史记录2434. 单选要删除所有打开的图像文件的历史记录，应采用下列哪个命令？A.选择历史面板上的清除历史记录B.编辑>清除>历史记录C.没有办法实现235. 多选关于快照，以下说法正确的是：A.快照记录图像历史记录面板中的某一个特定状态B.快照通常不能随图像一起保存，只有选择“允许非线性历史记录”选项才可以与图像一起保存在文件里C.可以设置在存储文件时自动创建当前状态的快照，但不能随图像一起保存为文件D.如果没有选择“允许非线性历史记录”选项，选择了一个快照并执行其他操作，将会删除历史记录面板上的当前列出的所有状态13436. 单选下列哪个选区创建工具可以“用于所有图层”？A.魔棒工具B.矩形选框工具C.椭圆选框工具D.套索工具137. 多选下列那种色彩模式可以直接转化为位图模式？A.RGB模式B.CMYK模式C.双色调模式D.灰度模式3438. 多选以下关于通道的说法中，哪些是正确的？A.通道可以存储选择区域B.通道中的白色部分表示被选择的区域，黑色部分表示未被选择的区域，无法倒转过来。

C.Alpha通道可以删除，颜色通道和专色通道不可以删除D.快速蒙版是一种临时的通道1439. 多选关于“自定形状工具”，使用Photoshop缺省用法，以下说法正确的是？A.自定形状工具画出的对象会以一个新图层的形式出现B.自定形状工具画出的对象是矢量的C.可以用钢笔工具对自定形状工具画出对象的形状进行修改D.自定形状工具画出的对象实际上是一条路径曲线123440. 多选一幅图像在photoshop中打开后，共进行了20步操作，现需要将其中的一个局部（图中已制作出该局部的选择区域）恢复到第10步时的操作结果（第10步时创建了快照），可使用下面哪些工具或命令？A.历史记录画笔B.橡皮擦工具C.“编辑>填充”命令D.“重做>还原”命令12341. 单选像素图的图像分辨率是指：A.单位长度上的锚点数量B.单位长度上的网点数量C.单位长度上的路径数量D.单位长度上的像素数量442. 单选当双击放大镜的时候图像会以100%来显示，请问这个100%表示的是什么A.显示器中的图像大小与图像输出尺寸一致B.表示一个屏幕像素对应一个图像像素C.表示全屏显示D.表示全页显示243. 多选对于颜色取样器工具，下列正确的描述是：A.在图像上最多可放置四个颜色取样点B.颜色取样器可以指读取单个像素的值C.颜色取样点在信息面板上显示的颜色模式和图象当前的颜色模式可以不一致D.颜色取样点可用移动工具对其进行位置的改变12344. 单选如果有一些滤镜功能不在“滤镜”菜单下，应执行下列哪个操作来恢复其在菜单中的显示?A.关闭虚拟内存后重新启动PhotoshopB.使用Photoshop安装光盘重新安装滤镜功能C.删除Photoshop的预置文件，然后重新启动PhotoshopD.将Plug-in文件放在Plug-In（增效工具）文件夹中，然后重新启动Photoshop2445. 单选当选择“文件>新建”命令，在弹出的“新建”对话框中不可以设定下列哪个模式？A.位图模式B.RGB模式C.双色调模式b模式346. 多选下列关于“增效工具”（或称为“插件”）的描述哪些是正确的？A.Photoshop所有的滤镜特效都被存放在“增效工具”文件夹中B.“增效工具”文件夹只能有一个，不可以再选择附加的“增效工具”文件夹C.除了Photoshop本身的“增效工具”文件夹之外，还可以选择另一个“增效工具”文件夹作为附加的“增效工具”文件夹D.关于Photoshop识别的不同文件格式也存放在“增效工具”文件夹中13447. 多选下列关于工具箱的描述哪些是正确的？A.当选择不同的工具时，在工具选项栏中会有对应的选项设定B.按住Option键（Mac）/Alt键（Win）的同时，单击工具箱中的工具，就可在隐含和非隐含的工具之间循环切换C.按住Shift的同时，单击工具箱中的工具，就可在隐含和非隐含的工具之间循环切换D.铅笔工具和画笔工具最根本的不同点在于铅笔工具有“自动抹掉”功能，而画笔工具没有1248. 多选下列关于Photoshop打开文件的操作，哪些是正确的？A.选择“文件>打开”命令，在弹出的对话框中选择要打开的文件B.选择“文件>最近打开文件”命令，在子菜单中选择相应的文件名C.如果图像是Photoshop软件创建的，直接双击图像图标D.将图像图标拖放到Photoshop软件图标上123449. 多选工具箱中的每个工具在使用时都有相应的字母快捷键进行切换，若要循环选择一组隐藏的工具，可采用下列哪种方式？A.按住 Shift 键并按键盘上工具的字母快捷键。