U1L1 warm up new

一、Python鲸鱼算法简介Python鲸鱼算法是一种启发式优化算法，其灵感来源于鲸鱼的迁徙行为。

这种算法通过模拟鲸鱼在寻找食物和迁徙的过程中的行为，实现寻优和优化问题的求解。

二、Python鲸鱼算法的原理1. 鲸鱼算法主要包括鲸鱼迁徙和食物搜索两个过程。

在迁徙过程中，鲸鱼通过多次跳跃来寻找新的位置；在食物搜索过程中，鲸鱼通过寻找食物来获取营养。

2. 鲸鱼算法的关键是通过调整鲸鱼的位置和跳跃步长来实现搜索空间的覆盖和寻优。

3. 鲸鱼算法的目标是找到问题的全局最优解，它利用种裙中的个体来搜索解空间，经过迁徙和食物搜索等过程来不断优化个体的位置和适应度。

三、Python鲸鱼算法的实现1. 初始化种裙：首先需要随机生成初始的鲸鱼位置，并计算其适应度。

2. 迁徙过程：通过迭代的方式，根据适应度和位置来更新鲸鱼的位置，以使其逐渐朝着全局最优解靠拢。

3. 食物搜索过程：在迁徙的基础上，鲸鱼还会进行食物搜索，以进一步优化个体的位置和适应度。

4. 终止条件：通过设置迭代次数或者适应度阈值来确定算法的终止条件，以保证算法能够在合理的时间内收敛。

四、Python鲸鱼算法的应用鲸鱼算法在实际问题中有着广泛的应用，特别适用于优化问题的求解。

在工程优化、机器学习中都可以使用鲸鱼算法来求解参数的最优化值，以及在路径规划、图像处理等领域中也有着较好的效果。

五、Python鲸鱼算法的优缺点1. 优点：鲸鱼算法是一种高效的全局搜索算法，能够在较短的时间内收敛到全局最优解；鲸鱼算法的参数少、易于实现，较为灵活。

2. 缺点：鲸鱼算法在处理复杂的高维优化问题时，容易陷入局部最优解，收敛速度较慢，需要进行多次运行以及调整参数来获取更好的结果。

六、总结Python鲸鱼算法作为一种启发式优化算法，其灵感来源于自然界的生物行为，能够有效地应用于不同领域的优化问题求解中。

通过合理的参数设置和多次迭代训练，鲸鱼算法能够取得较好的优化效果，为实际问题的解决提供了有力的支持。

nyu depth v2 toolbox补全原理
NYU Depth V2 Toolbox是一种用于深度图像补全的工具箱，其补全原理主要基于深度学习和计算机视觉技术。

该工具箱利用深度神经网络模型对深度图像进行补全，以实现对场景中物体的三维形状和结构的准确感知。

深度图像补全的主要挑战在于如何处理深度图像中的缺失值和噪声，以及如何在补全过程中保持图像的空间一致性和结构连续性。

NYU Depth V2 Toolbox采用了一种基于深度学习的自编码器模型来解决这些问题。

该模型由两部分组成：编码器和解码器。

编码器负责将输入的深度图像转换为一个低维特征向量，而解码器则根据该特征向量生成补全后的深度图像。

在训练过程中，该模型使用大量的深度图像数据进行训练，以学习如何从输入图像中提取有用的特征，并生成准确的补全结果。

通过不断地优化模型的参数和结构，可以使得模型对于不同的深度图像数据具有更好的泛化能力和鲁棒性。

在补全过程中，NYU Depth V2 Toolbox还采用了一些先进的计算机视觉技术，如图像分割、边缘检测等，以提高补全结果的准确性和精度。

此外，该工具箱还提供了一些可视化工具，可以帮助用户更好地理解和分析补全结果。

总之，NYU Depth V2 Toolbox的补全原理主要基于深度学习和计算机视觉技术，通过训练深度神经网络模型来实现对深度图像的准确补全。

该工具箱在深度图像补全领域具有重要的应用价值，可以为三维重建、场景理解等任务提供有力的支持。

warmup参数
在计算机科学中，"warmup"通常是指在进行某项任务或操作
之前，进行一系列准备活动以确保系统或程序能够以最佳状态执行。

在编程中，"warmup"参数一般指代一个用于控制“热身”过程的参数或选项。

具体来说，在机器学习领域，"warmup"参数通常用于优化器
的学习率调整过程。

学习率调整可以使模型的训练过程更加稳定和高效。

而"warmup"参数则用于控制在训练初期阶段是否
降低学习率，以便让模型更好地适应数据集或特定任务。

较小的学习率可以使模型更容易收敛，并以更好的方式探索损失曲面。

在其他上下文中，"warmup"参数可能具有不同的含义或功能。

它可能用于控制优化算法的初始参数设置，或者用于引导系统在进行某项操作之前进行一些初始化或准备工作。

具体的功能和含义可能因不同的应用场景而异。

Unit One Recreation and SportsLesson One Games and SportsExercise 1I.Find the word with a different sound in each group.(从每组单词中找出一个划线部分与其他发音不同的词）( ) D. also( )( )( )( )( )II.Fill in the blanks with the proper words according to the phonetic transcriptions. (看音标写单词)1.My father used to go_______/dʒɔgiŋ/on the morning but now he is too bus y to do that.2.I usually play_____/tʃes/with my best friend.3.Peter didn’t finish his homework_______/jestədi/.He shouldn’t do that.4.Chinese usually go sightseeing_______/djuəriŋ/National Day holidays.5.You joined the school football_______/ti: m/, didn’t you6.Mary was our monitor at_______/praiməri/school.III.Fill in the blanks with the proper words．（填入适当的单词，首字母已给）1.The children had a w________day on Children’s Day.2.My family are looking forward to seeing the new film this coming w______.3.D_______the break of an English lesson,they talked with each other in English.4.I enjoy p______football very much.5.Li Lin went b______with his cousins,buthe didn’t go r_____________.6.Linda enjoyed h_____at the party last evening.IV.Fill in the blanks with "go" or "play".(用go或play填空)joggingbowling tennisV.Put the phrases into English.（将下列词组译成英语）1.踢足球______________________________________2.去打高尔夫球________________________________3.下国际象棋__________________________________4.刚才________________________________________5.上周末______________________________________6.难怪________________________________________7.在小学______________________________________8.打羽毛球____________________________________9.去打保龄球_________________________________10.去溜旱冰_________________________________VI.Fill in the biacks with the following words in their proper forms.(用所给单词的适当形式填空)1.At my birthday,my friends enjoyed_______.(they)2.My father used to go_______,but now likes bowling.(jog)3.We had a_________time at the party. (wonder)4.I read an ________book it. (interest)5.Help_______to the cake, everyone.(you)6._______ are training hard for the games. (sportsman)VII.Read and choose the best answer.(阅读并选择正确答案）Last Sunday, Lindy and her family went to the East Coast Park. They went there early in the morning as wanted to have a morning family jogged for one hour before they went on to do their favourite liked to cycle and enjoyed the they cycled,they chatted and enjoyed the beautiful that, Lindy asked her parents to skate with ,Mr. and agreed did not like that activityas they felt they were too old for skated for an hour and felt tired and they had not eaten pizza for a long time, they had their meal at the nearby pizza restaurant.( ) and her family went to the East Coast Park early in the morning because________.A. it was a SundayB. there were few people in the early morningwanted to have a jog wanted to roller-skate( ) is their favourite activity.A.Jogging( ) enjoyed the view while ______.A.jogging( ) ’s parents did not like to skate because_______.did not know how to do itwas not funthought the sport was not for people of their agewas a tiringExercise 2I.Put the following phrases into English.(将下列短语译成英文)1.在体育课的休息期间___________________2.喜欢打羽毛球 __________________3.和我堂兄妹一起打保龄球 ______________4.过得愉快 ______________________5.难怪 _____________________6.在校足球队 ____________________7.在小学 __________________ 8.谈论运动 _______________________9.对······感兴趣 _________________ 10.去溜旱冰 ____________________11.看上去像一个运动员 __________________12.顺便问一下 __________________II.Choose the best answer.（选择最恰当的答案）( ) ____wonderful time we had last night!A./( ) is interested ____ chess.( ) takes_____time to get there by ship.A.many lot few( ) ____sports and games last weekend.A.join part in part in( ) you enjoy ____,Peter and JuliaA.yourself( ) you like ____football with meA.play play( ) Hui spent a lot of time ____.A.swim swim( ) you like to go ____with me this weekendA.bowl bowl bowling( ) was ___ the school volleyball team at primary school.A.on( ) do you go golfing--Twice a week.long much often many( ) often plays＿＿football with his friends.A.theB./ C .an( ) is interested ________ playing computer games.( ) music.A.listening to listen to listen( ) Lang is very good at____piano.the play thewith( ) school EnglishInterest Club last week.enjoy joinpart inIII.Fill in the blanks with the verbs in their proper forms.(用所给词的适当形式填空)1. My brother often _____(watch)TV in the last night he _____(not watch)TV.2. It’s nine o’clock. The children ____(have)an art class.3. I’d like _____(buy) a pair of shoes.4. I ____(be) a pupil last year.5. He _____(begin) to learn English at the age of five.IV.Rewrite the following sentences as required.(按要求改写句子）1. She had breakfast at home this morning.(改为否定句）She ______ ______ breakfast at home this morning.2. We did shopping with our parents last Saturday.(改为一般疑问句）_______ you _______shopping with your parents last Saturday3. Theymeet each other once a month. (改为一般疑问句）How ______ ______ they meet each other4. Did you have a good time last weekend, children(保持句意不变）Did you ______ ______ last weekend ,children5. My mother liked jogging before. (保持句意不变）My mother _______ _______ in jogging before.V.Answer the questions(根据短文内容完成下列问题)Mr. Smith had two sons. One is seven years old, and the other is five. One morning during the holidays, when he was cleaning the car, his younger son came and asked him for some money for sweets.“Sweet are bad for your teeth,”Mr. Smith said. “Take or anges is quite a lot bigger than the other one，and as the small boy liked oranges very much，he kept that one for himself，and gave his brother the smaller one. When the other boy saw that his brother had a much larger orange than his own，he said to him，“It’s selfish（自私的)to take the bigger one for yourself. If father had given me the oranges, I’d have given you the bigger one.”“I know you would, ”answered his brother. “That's why I took it. ”1. What was Mr. Smith doing one morning＿＿＿＿＿＿＿＿＿＿＿＿＿＿2. What did his younger son ask for＿＿＿＿＿＿＿＿＿＿＿＿＿＿3. Did the son get what he wanted＿＿＿＿＿＿＿＿＿＿＿＿＿＿4. Who got the bigger orange＿＿＿＿＿＿＿＿＿＿＿＿＿＿5. How many sons did have＿＿＿＿＿＿＿＿＿＿＿＿＿＿6. How old are they＿＿＿＿＿＿＿＿＿＿＿＿＿＿Exercise 3I.Write out the past forms of the following verbs.(写出下列动词的过去式)_____ _____ _____ is _____has _____ _____ _____ __________ _____ _____ __________ _____ _____ _____II.Fill in the blanks with "was" or "were".(用was或were填空）1. Where _____ Uncle Wang yesterday morning2. Where _____Mr. and Mrs. Green yesterday morning3. Who _____ at the office yesterday afternoon4. Where _____Mrs. King yesterday afternoon5. Where _____ he a moment agoIII.Fill in the blanks with the verbs in their proper forms.(用动词的适当形式填空)1. What____you_____yesterday(do)2. Tong Tong_____ (show) his uncle around his school last Monday._____just now (sing)4. You_____ (join) the Young pioneer five years ago.(be)aprimary school student(小学生）a few months ago.IV.Rewrite the sentences as the model.(按要求改写句子)Model: Li Hua often plays tennis after school. (yesterday)Li Hua played tennis after school yesterday.Li Hua didn't play tennis after school yesterdayDid Li Hua play tennis after school yesterday1. Julia goes to her aunt's house every weekend. (last weekend)_________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ 2. Dick does his homework every day.(last weekend)_________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ 3. His brother likes playing badminton.(before)_________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________ 4. Her sister learns English at a night school.(last year)_________________________________________________________________________ _________________________________________________________________________ _________________________________________________________________________V.Fill in the blanks.(选用适当的答案)mother a Maths teacher before (Were you,Was your)-No,she wasn't.Hui _____ new friend at the welcome party(Did...make,Does...makes)uncle enjoy _______ volleyball(Do...play,Does...playing)enjoys playing football.______ you last night (Where were,Which did)-I was at home.did you _______ the story(How...think,What...think of)-It was great.like ______before(Did...jogging,Does...jog)-Yes,she did.go to school every day last year(What does,How did)-She went to school on foot.Tom _______ up every morning(When...get,What time...gets)-He gets up at six,VI.Make the following sentences negative and interrogative.(将下列的句子改为否定句和疑问句）1. They were late for school this morning.__________________________________________________________________________________________________________________________________________________2. There was some water in the glass.__________________________________________________________________________________________________________________________________________________3. We played football on the school team before.__________________________________________________________________________________________________________________________________________________4. We went bowling last weekend.__________________________________________________________________________________________________________________________________________________5. She had lunch at home three years ago.__________________________________________________________________________________________________________________________________________________6. My brother did his homework quickly last Sunday.__________________________________________________________________________________________________________________________________________________Exercise 4I.Fill in the blanks with the proper words according to the phonetic transcriptions. (看音标写单词)1. I always take an______/ æ k t i v/part in activities in school.2. He likes to read all _______/ k ai n dz/of books in his free time.3. They are interested in piaying_______/ b r i dʒ/4. Peter used to______/ s p e n d/a lot of time reading English.5. They clean their classroom______/ t w ai s/a week.6. There are______/ s əu/many people there.II.Put the following phrase into English.(将下列短语译成英文）1.积极参加___________________2.一周两次___________________3.各种各样___________________4.擅长______________________5.放学后____________________6.打桥牌____________________7.不但......而且...... _____________8.在空闲时间_________________III.Choose the suitable word to fill in the blanks.(选择适当的词填空）A. active activity1. I like sports a lot, so I take an ________ party in it.2. We were ________in class. Our teachers like us very much.3. The children are interested in the hobby group _______.B. take spend1. She has pocket money every month from her parents. She ________some on book.2. It _______ us two hours to finish the work last night.3. Tom ______ two hours playing tennis with his friends every week.4. He doesn't ______ much time on his homework.C. take part in join1. We ______ the hobby group at school.2. Linda ______ the English Evening yesterday and had a wonderful time.3. My father _______ the Party in 1985.4. I like football and ______ the school football team.5. We had a class meeting last Friday. I ______ the group singing....and... not only...but also...1. ________Jack ________ his father enjoys playing chess.________ his father enjoy playing chess.IV.Choose the best answer.（选择最恰当的答案）( ) only my sister butalso my brother____ interested in English when they were young.( ) new movie at Dong Fong Cinema tonight.going to be going to begoing to have have( ) students spent much time____computer ’s bad.A.play play C. played( ) ____sports and games last weekend.A.join part in part in( ) spent a lot of time ____.A.swim swim( ) brother is _____university student .He is good _____EnglishA.an; in ; at ; in ; at( ) played _____the school basketball team _____ primary school.A.at; in ; at ; at ; at( ) often ____group singing at primary school.A.join part in part in( ) father a university teacher beforeA.Was( ) plays____ bridge with his friends.A./ Dan.V.Read the passage and fill in the blanks with proper words(在短文的空格内填入恰当的词，使其内容通顺，每空格限填一次，首字母已给)Hanson is a college student in New York City. L___1____ weekend he was supposed to study for an exam, but he didn’t r____2___ want to study. He just wanted to h___3____ fun. On Friday n____4____ he went dancing. On Saturday morning he played tennis w____5___ his friend Keith. On Saturday afternoon his friends called, and they all had a picnic t____6___ in Central Park. On Saturday evening he went to a party at his friend Roger’s flat. He w___7____ to bed at about midnight.__Test OnePart 1 Vocabulary and Grammar(第一部分词汇和语法)I.Choose the best answer(选出最恰当的答案):18%( ) 1. Peter and Tom often play ________ table tennis at the weekend.A.theB. aC. anD. /( ) 2. Are you interested ________ maths or EnglishA.toB. inC. /D. on( ) 3. I enjoy ________ the music.A.to listenB. to listen toC. listeningD. listening to ( ) 4. I like ________. Would you like ________ bowling this weekendA.bowling…goingB. bowling… to goC. to bowl…goD. to bowl…going ( ) 5. My uncle was ________ the city football team when he was young.A.inB. on D. for( ) 6. ________you ________ any games and sports last weekendA.Do…playB. Did…playC. Are…playD. Are…going to play ( ) 7. ________ your father a university teacher beforeA. WasB. WereC. DidD. Does( ) 8. ________, when do classes begin every morningA.On the wayB. In the wayC. By the wayD. To the way ( ) 9. Would you like to go _______ with meA.to roller-skateB. roller-skatingC. to roller-skatingD. roller-skate( ) 10. They spent a lot of time _________ the Internet .A.surfingB. surfC. to surfD. in surf( ) 11. Dick is ________ good at sports _______ good at his studies .A.not also…but onlyB. only not…but alsoC. not only …also butD. not only…but also( ) are playing football .Let’s go and join ________.A.theyB. themC. theirD. themselves( ) 13. I like fish best. It tastes ________.A.wellB. terrible D. beautiful( ) 14. _______ are the apples from DalianA. How muchB. How manyC. How longD. How often( ) 15. I have two pairs of glasses. ________ of them fit me very well.A.AllB. BothC. EachD. One ( ) 16. What about ________ badmintonA.playB. playedC. playingD. to play ( ) 17. My father was pleased to hear the good news. The underlined part means ________.A.sorryB. afraidC. readyD. happy( ) Let ’s go and enjoy the basketball match together, shall weA. Ok. I’ll take your advice.B. Good idea. Let ’s go.C. Yes. It ’s a pleasure.D. That ’s all right.II. Complete the sentences with the given words in their proper forms(用括号中所给单词的适当形式完成下列句子):5%1. My uncle lives in a tall building on the ________ floor. (twelve)2. Mary enjoyed ________ a lot before. (jog)3. Did you enjoy ________ , children (you)4. It sounds like an ________ trip. (interest)5. They take an ________ part in sports after school. (act)III. Complete the following passage with the words or phrases in the box. Each can only beused once(将下列单词或词组填入空格。