Unit3-4复习检测题
一．写出下列动词的过去式（*重要，必须会背！）
am/is—was are—were begin—began come—came do--did cut—cut draw—drew eat—ate feel—felt find—found swim—swam get—got give—gave go— went have(has)—had make—made let—let put—put call—called play—played read—read run—ran see— saw stay—stayed sing—sang take— took write—wrote
二．单项选择。
1.The _B__ Thursday in November is Thanksgiving.
A.third
B. fourth
C. second
2. Everybody _B___ fun.
A. have
B. has
C. had
3. There is a light _B___ upstairs.
A. in
B. on
C. at
4. Many people will_A__ in the street.
A. meet
B. meeting
C. meets
5. We help him to _A___ houses.
A. build
B. builds
C. building
6. I want __B__ corn.
A. plant
B. to plant
C. planting
7. Some people don’t give the children _B___.
A. nothing
B. anything
C. something
8. There is _B__ open window.
A. a
B. an
C./
9. There is blood __B_ his nose.
A. in
B. on
C. at
10. This boy didn’t _C__ his homework.
A. did
B. does
C. do
三．连词成句。
1．break arm did his he(?)
Did he break his arm?
2.away they the put ladder (.)
They put the ladder away.
_______________________________________________________
3.in was hospital I (.)
I was in hospital.
___________________________________________________________
4.the going I am beach to (.)
I am going to the beach.
_________________________________________________________ 5.get my together families (.)
My families get together.
______________________________________________________
6.they house from go to house doorbell ring and the(.) they go from house to house and ring the doorbell.
__________________________________________________________ 7.catch show they how them to fish (.)
They show them how to catch fish.
________________________________________________________ 8.was I last on my year holiday parents with (.) Last year I was on holiday with my parents.
四．翻译句子。
1．当你骑自行车时，要带上头盔。
When you ride a bike, wear/put on your helmet.
2．当你溜冰时，要带上护膝。
When you roller blade, put on/wear your pads.
3．当你开车时，请记得系上安全带。
_When you ride in a car, please remember to put on your belt.
__________________________________________________________ 4. 农历的八月十五是中国的一个非常重要的节日。
The 15th day of the Chinese lunar August is a very important festival in China.
5．10月31日，英国和美国的孩子们装扮成女巫、怪兽或者幽灵。On the 31st October, children in Britain and the USA dress up as witches, monsters or ghosts.
五．阅读理解。
1．Chinese New Year is a specialholiday for everyone in __B_.
A.England
B. China
C. Canada
2. Older family members talk about __C__.
A. work
B. friends
C. work and friends
3. Young people get red envelops with “__A___” inside.
A. lucky money
B. a beautiful picture
C. a good story
4. People clean their __A___.
A. houses
B. rooms C . schools
5. Friends _A__ each other.
A. visit
B. help
C. learn
专题2细胞工程 一、选择题 1.运用下列各种细胞工程技术培育生物新品种,操作过程中能形成愈伤组织的是( )。 ①植物组织培养②植物体细胞杂交③动物细胞培养 ④转基因植物的培育 A.①②③ B.①②④ C.①③④ D.①②③④ 2.生物技术的发展速度很快,已灭绝生物的“复生”将不再是神话。如果世界上最后一只野驴刚死亡,以下较易成功“复生”野驴的方法是( )。 A.将野驴的体细胞取出,利用组织培养技术,经脱分化、再分化,培育成新个体 B.将野驴的体细胞两两融合,再经组织培养培育成新个体 C.取出野驴的体细胞核移植到母家驴的去核卵细胞中,经孕育培育成新个体 D.将野驴的基因导入家驴的受精卵中,培育成新个体 3.下列关于细胞工程的叙述,错误的是( )。 A.电刺激可诱导植物原生质体融合或动物细胞融合 B.去除植物细胞的细胞壁和将动物组织分散成单个细胞均需酶处理 C.小鼠骨髓瘤细胞和经抗原免疫小鼠的B淋巴细胞融合可制备单克隆抗体 D.某种植物甲、乙两品种的体细胞杂种与甲、乙两品种杂交后代的染色体数目相同 4.用高度分化的植物细胞、组织和器官进行组织培养可以形成愈伤组织,下列叙述错误的是( )。 A.该愈伤组织是细胞经过脱分化和分裂形成的 B.该愈伤组织的细胞没有全能性 C.该愈伤组织是由排列疏松的薄壁细胞组成的 D.该愈伤组织可以形成具有生根发芽能力的胚状结构 5.名为“我的皮肤”的生物活性绷带自从在英国诞生后,给皮肤烧伤病人带来了福音。该活性绷带的原理是先采集一些细胞样本,再让其在特殊的膜片上增殖。5~7天后,将膜片敷在患者的伤口上,膜片会将细胞逐渐“释放”到伤口,并促进新生皮肤层生长,达到加速伤口愈合的目的。下列有关叙述中,不正确的是( )。 A.“我的皮肤”的获得技术属于动物细胞工程 B.人的皮肤烧伤后会因人体第二道防线的破坏而导致免疫力下降 C.种植在膜片上的细胞样本最好选自患者本人 D.膜片能否把细胞顺利“释放”到伤口,加速患者自身皮肤愈合与细胞膜上的糖蛋白有关 6.既可用于DNA重组技术又可用于细胞融合技术的是( )。 A.病毒 B.纤维素酶 C.聚乙二醇 D.质粒 7.培育农作物新品种的过程中,常利用植物组织培养技术。下列叙述正确的是( )。 A.培育转基因的外植体得到的新个体属于基因突变个体 B.在植物组织培养过程中用理化因素诱导可获得大量有益突变体 C.单倍体育种中经减数分裂和组织培养两个过程能获得纯合二倍体 D.植物组织培养技术的理论基础是细胞的全能性 8.下列与细胞工程技术相关的表述中,不正确的是( )。 A.植物体细胞杂交技术可以克服常规的远缘杂交不亲和障碍 B.动物细胞培养与植物组织培养所用的培养基成分基本相同 C.动物细胞融合与植物原生质体融合的基本原理相同 D.植物组织培养技术的理论基础是细胞的全能性 9.经植物组织培养技术培养出来的植物一般很少有植物病毒危害,其原因在于( )。 A.在组织培养过程中经过了脱分化和再分化,进行的是快速分裂和分化
一、填空题 1．计算机网络系统的逻辑结构包括通信子网和 - 资源子网 两部分。 （主要网络：电信网络、有线电视网络、计算机网络） （计算机主要功能：资源共享（就是共享网络上的硬件资源、软件资源、信息资源）、 数据通信、分配式处理） 2．ARPANET 是Internet 的前身。 （互联网：ISO、 IEEE、ARPA） 3．计算机网络按网络覆盖范围分为局域网LAN 、城域网 MAN 和广域网WAN 3 种。 ( 常见的拓扑结构：总线型、星型、环型、混合型) 4．模拟数据的数字化必须经过采样、量化、编码三个步骤。 5．数据交换技术主要有电路交换、报文交换，分组交换，其中分组交换交换技术有数据报和虚电路之分。（存储交换：报文 交换、分组交换）（数据：模拟数据和数字数据） 模拟通信系统通常：信源、调制器、解调器、信宿以及噪声源组成。）（数字数据调制：移幅键控ASK、移频键控FSK、移相键控PSK） 6．决定局域网特性的主要技术要素包括介质访问控制方法、拓扑 结构和传输介质三个方面。 7．局域网体系结构仅包含OSI 参考模型最低两层，分别是_物理层 __ 层和 _数据链路 __层。
（OSI 模型：应用层、表示层、会话层、传输层、网络层、数据链路层、物理层） 8． CSMA/CD方式遵循“先听后发，__边听边发 __， _冲突停发 __，随 机重发”的原理控制数据包的发送。 （以太网是当今现有局域网采用的最通用的通信协议标准，它定义了 局域网中采用的电缆类型和信号处理方法，使用CSMA/CD技术，并以 10Mbit/s 的数据传输速率运行在多种类型的电缆上。） 9 ．广域网由局域网及城域网组成。 10 ．现在以太网接入技术主要的解决方案有DSL 和Cable Modem 。 11． Internet 上的文件服务器分专用文件服务器和匿名文件服务 器。 二、选择题 1．电视频道的带宽是 6MHz，假定没有热噪声，如果数字信号取 4 种离散值，那么可获得的最大数据率是 C 。 A． 6Mbit/s B． 12Mbit/s C． 24Mbit/s D．48Mbit/s 2．如果一个码元所载的信息是两位，则一码元可以表示的状态为 B 。 A．2 个B．4 个C．8 个 3．调制解调器（MODEM）的主要功能是 C D．16 个。 A．模拟信号的放大B．数字信号的整形C．模拟信号与数字信号的转换D．数字信号的编码4．基带系统是使用 C 进行传输的。
第一单元 Outside view 1. 1 2 3 4 2.interview techniques lead in looking for boils down 3.professional job coach doing research practiced with present yourselfinterviewerpresentation and understanding in relationship to the jobsome examples dealing with problems 4. 1 3 5 7 8 9 10 11 5.what Samantha was doing wrong in her first job interview what she should do in future interviews Talk 1.B C A C 2.C A D Passage 1 1. 2.B D A D C Passage 2
Unite test DBACA BCDAD BDBC 第二单元 Outside view 1. 3 4 6 1.It's best suited to the download generation. Although the interview says "No one in the industry is suggesting the conventional bookshop is dead", the figures discussed indicate that the conventional bookshop will lose out to digital publishing. Downloadable books sell more than hardbacks and paperbacks. The e-book is delivered in a very convenient way. 2.undergoing a fundamental change600consuming content get it editedclick of a few buttons earning money for an author never really catch on Talk 1.B D A D 2.C B A
Unit 3自我检测试题 1．在表格中写出下列中文意思对应的英文单词。 这个铅笔钢笔书橡皮尺子箱；盒铅笔盒 双肩背包卷笔刀字典那个是的不是拼写 棒球手表电脑游戏钥匙笔记本戒指学校 2．给出下列两个句子的肯定回答及否定回答。 (1)Is this your pen? 肯定回答： 否定回答： (2)Is that your pencil? 肯定回答： 否定回答： 【单元语法总结】 对于Is this / that …？句型，其肯定回答是Y es, it is. 否定回答是No, it isn’t.（isn’t 是is not的缩写）需要注意的是yes之后跟肯定形式，no之后跟否定形式，不可混淆。【思路拓展】 上述句式的复数形式是Are these / those…? 其肯定回答是Y es, they are. 否定回答是No, they aren’t.(aren’t是are not的缩写) 3．选用this或that填空。 (1) Look at kite in the sky! (2) Look! Is my new pen! (3) man over there is my father. 【重点语法知识】区别that和this的用法 this和that是指示代词，其区别在于：this往往指时间或空间较近的人或物；that 往往指时间或空间较远的人或物。 【思路拓展】 these和those分别是this和that的复数形式，其用法同this和those。
4．阅读理解。 请阅读下列对话，把对话中两人拥有的东西分别归给个人。 Li Ming: Hello, Lucy! Is this your pen? Lucy: Yes, it is. Li Ming: And is this your book? Lucy: No. Look, it is your name! This is yours! Li Ming: Oh, I am sorry! Lucy: There is a pencil. Whose is it? Li Ming: Oh, it is mine. My pencil is red. Lucy: And is that your watch? Li Ming: No, it isn’t. It’s Mary’s. Lucy: I see. Let’s go to lunch. Li Ming: OK. (1) 属于李明的东西是： (2) 属于露西的东西是： 自我总结： 我的课本知识掌握的如何： 我的对应练习完成的如何： 我的进步是： 我的不足是： 自我得分： 答案 1．this pencil pen book eraser ruler case pencil case backpack pencil sharpener dictionary that yes no spell baseball watch computer game key notebook ring school 2. （1）Yes, it is. No, it isn’t. （2）Yes, it is. No, it isn’t. 3. that his That 4. （1）book pencil （2）pen
细胞模拟试题及答案 一、填空（每空一分，共25分） 1.实验室的物理防护是由隔离的设备、实验室的设计、实验实施等三个方面组成，根据其密 封程度的不同，分为P1、P2、P3、P4四个生物安全等级。典型的P4实验室由更衣区、过滤区、缓冲区、消毒区、核心区组成。 2.细胞系是原代培养经初步纯化获得的以一种细胞为主的、能在体外长期生存的不均一细胞 群体。 3.细胞株是指从一个经过生物学鉴定的细胞系用单细胞分离培养或通过筛选的方法，由单细 胞增殖形成的细胞群。 4.干细胞是一类具有自我更新和分化潜能的细胞。干细胞的增殖特性为缓慢性和自稳性。 5.培养细胞的生长特点为贴附、接触抑制和密度抑制。 6.植物细胞培养的原理是基于动物细胞的全能性。 7.植物细胞悬浮培养的方法为分批培养法、连续培养法和半连续培养。 8.植物组织培养中培养材料的消毒过程中，消毒的基本原则是既要杀死附着其上的微生物又 不损伤材料。 9.细胞生长测定的一般方法为：细胞计数、测定细胞密实体积、细胞鲜重或干重。 10.体外培养的细胞根据其生长方式主要分为贴附型细胞和非贴附型细胞。 11.人工种子的组分包括胚状体、人工胚乳和人工种皮。 12.细胞融合主要经过了两原生质体或细胞互相靠近、细胞桥形成、胞质渗透、细胞核融合几 个步骤。其中细胞桥形成是最关键的一步。 13.花粉单倍体植株的鉴定方法有形态鉴定、细胞学鉴定、杂交鉴定、分子标记鉴定。 14.胚胎工程主要是对哺乳类动物的胚胎进行某种人为的工程技术操作，然后让它继续发育， 获得人们所需要的成体动物。 15.人工诱导单倍体形成的方法包括：远缘杂交、延迟授粉、核置换、射线照射、花药培养等。 二、单项选择题（每题1分，共10分） 1.人参皂甙粉是人参中重要的药用成分，以前只能从人参中提取产量极低，因而价格昂贵。 目前人参皂甙粉可以通过下列哪项技术迅速大量获取（B） A．基因工程 B．植物组织培养 C．植物体细胞杂交 D．发酵工程
软考网络基础试题100例(附答案) 1.“令牌环环存在冲突检测问题”的说法（B） A.正确 B.错误 2.网络中PC机与集线器相联所使用的网线接头类型为？A A.RJ-45 B.RJ-11 3.100BaseT中的“Base”的意义是？B A.基础传输 B.基带传输 4.下面哪种网络类型适合对网络进行集中管理？B A.Peer-to-Peer B.Client/Server 5.OSPF属于下列哪种类型的协议？A A.内部路由协议 B.外部路由协议 6.BGP属于下列哪种类型的协议？B A.内部路由协议 B.外部路由协议 7.ARP请求报文属于______。A A.单播 B.广播 8.下面哪个命令用于在Linux环境下查看正在使用的端口？B A.ifconfig -a https://www.doczj.com/doc/847276440.html,stat -a https://www.doczj.com/doc/847276440.html,stat -rn 9. Internet网络层使用的四个重要协议是（）B A.IP、ICMP、ARP、UDP B.IP、ICMP、ARP、RARP C.TCP、UDP、ARP、RARP 10.在以太网中采用下面哪种网络技术？C A.FDDI B.A TM C.CSMA/CD 来源:考试大
11.HDLC协议工作在OSI模型的哪一层？C A.传输层 B.网络层 C.数据链路层 12.下面哪条命令用于把路由器的当前配置保存到TFTP服务器中？C A.Router#copy startup-config tftp B.Router#copy flash tftp C.Router#copy running-config tftp 13.以下关于MAC的说法中错误的是_______。A A.MAC地址在每次启动后都会改变 B.MAC地址一共有48比特，它们从出厂时就被固化在网卡中 C. MAC地址也称做物理地址，或通常所说的计算机的硬件地址 14.IP 协议的核心问题是_______ ?B A.传输 B. 寻径 C.封装 15.在Linux环境下，使用如下哪个命令可以查看/etc/foo文件是由哪个RPM包安装的？D A. rpm -qa |grep foo B.rpm -ql /etc/foo C.rpm -qlf /etc/foo D.rpm -q -f /etc/foo 16.实现数据压缩与OSI模型中（）层密切相关D A.表示层 B.数据链路层 C. 物理层 D.传输层 17.交换机不具有下面哪项功能？C A.转发过滤 B.回路避免 C.路由转发 D.地址学习 18.在无线局域网中使用的协议是_____。A A.802.3 B.802.5 C.802.7 D.802.11
新编大学英语视听说4答案Unit 1 Part One Exercise 2 1. B 2. C 3. D 4. A Exercise 3 1. right before 2. spring break 3. ski trip 4. about an hour 5. catch up on 6. wait a minute 7. anytime you want 8. read the end 9. go to the cinema 10. care about Part T wo Listening I Exercise 1 1. A 2. C 3. A 4.C 5.C 6. B Exercise 2 1. F 2. T 3.F 4. F 5. T Listening II Exercise 1 1. T 2. F 3.F 4. F 5. F 6 T Exercise 2 1. B 2. C 3.C 4.A 5. D Part Three More Listening Practice One Exercise 2 1.escape into 2. horror films 3. follow the detective 4. around these days 5. ring up Practice Two Exercise 1 1. T 2. F 3. T 4. T Exercise 2 1. A 2. C 3.B 4. D Practice Three Exercise 1 1. B 2. B 3.C 4.B 5. A 6. A 7. B 8. C
1. T 2. F 3.T 4. F 5. T 6 T 7. F 8. F Practice Four Exercise 1 1. D 2. A 3. D 4. C 5.C Exercise 2 1. F 2.T 3.F 4.T 5. F Part Four Testing Y ourself Section 1 1. A 2. C 3. C 4. A 5. C 6. B Section II 1. C 2. B 3. D 4.C 5.B 6. A Section III 1) dinner/ band / cake 2) house / drinks 3) invite/ arrive/ fifty 4) drinks/ new Unit 2 Part One Exercise 2 1. F 2. F 3.T 4. F 5. T 6 T Exercise 3 1. donations/ individuals and organizations 2. dedicate/ time and resources 3. loving and caring 4. keep coming 5. keep the best 6. feel better about 7. not necessarily 8. lovely surprise 9. truth/ understanding 10. real key Part T wo Listening I
—第一学期 Uni t 3试卷 八年级英语试卷 ( 考试时间： 1；满分： 100分） 题 ⅢⅣⅤ ⅥⅦ Ⅷ 总分 Ⅰ Ⅱ 号 得 分 听力部分( 一、听力（每小题1分，共 A) 看图听句子，选出与你所听到的与句子内容相符的图画（其中有一幅是多余的）。 (A)(B)(C) (D)(E)(F) 1_________2__________3___________ 4 ___________5__________ B）听对话，根据对话内容选择问题的正确答案。（对话读两遍） 第一节：听下面六段对话，回答每段对话后的问题。 6.What did Jim use to do? A. See films. B. Watch TV. C. Swim. 7.Who taught Wang Wei to swim? A. His teacher. B. Nobody. C. Folk music. 8.Where are they going to meet? A.Their school gate. B. The Music Hall. C. The shop gate. 9.Does Li Ping’smother like rock music? A.No, she doesn’t B. Yes, she does. C. No, she isn’t. 10.What was Helen doing at eight yesterday morning? A. Reading. B. Watching TV. C. Playing computer games.
11. What is Jack going to buy next week? A. A piano. B. A violin. C. A guitar. C）听对话，根据对话内容选择问题的正确答案。（对话读两遍） 第一节：听下面一段对话，回答 12－ 13 就问题 12 . What instrument is Tom going to learn? A. Piano. B. Drums. C. Guitar. 13.Why does Tom have to learn it? A. Because his parents want him to do. B. Because he likes playing it. 第二节：听下面一段对话，回答14－ 15 小题 14. Who will go to the party with Maria? 15.What can Xiao Fang do at the party? A. Sing classical music. B. Sing pop songs. C. Play the piano. D) 听短文，根据短文内容，完成下列表格。（短文念三遍） Names Ann Helen Where in the16 on the playground What were people doing reading newspapers playing17 Jim 18in the music club 19 a big having lessons fishing Michael river at his home playing the 笔试部分（ 80 分） Ⅱ单项选择从A、B、C三个选项中选出一个可填入的最佳答案。（每小题1分，共15分） ( ( ( ( () 21. I used to read novels, but now I it. I enjoy doing sports. A. hate B. enjoy C. like )22. - Why not go out and do some outdoor activities? - That's a good idea. Maybe I need. A. a stamp B. a change C. a book )23. Books are my friends . They give me knowledge and bring me ______. A. happy B. happiness C. sad )24. The book is _____. Most of the teaches are ______ in it . A. interesting interested B. interesting interesting C. interested interesting )25. ______ she is sick or not , she is always happy . A. Weather B. Whether C. If
细胞工程 一、选择题 1．下列关于细胞工程的叙述，正确的是() A．植物细胞必须先用胰蛋白酶处理获得原生质体 B．试管婴儿技术包括细胞核移植和胚胎移植两方面 C．经细胞核移植培育出的新个体只具有一个亲本的遗传性状 D．用于培养的植物器官属于外植体 答案：D解析：植物细胞必须先用纤维素酶和果胶酶处理获得原生质体，A错误；试管婴儿技术包括体外受精和胚胎移植两方面，B错误；经细胞核移植培育出的新个体具有两个亲本的遗传性状(细胞核和细胞质中的遗传物质来自不同亲本)，C错误；外植体是指由活植物体上切取下来用于进行培养的那部分组织或器官，D正确。 2．(2015·江苏苏州质检)下图表示四倍体兰花叶片通过植物组织培养成植株的过程： 四倍体兰花叶片――→ ① 愈伤组织――→ ② 胚状体――→ ③ 植株 下列相关叙述中，正确的是() A．②和③阶段发生减数分裂 B．①阶段需要生长素而③阶段仅需要细胞分裂素 C．①阶段不仅有细胞增殖且细胞分化速度很快 D．此兰花的花药离体培养所得的植株体细胞中有两个染色体组 答案：D解析：图中①是脱分化，②是再分化，③是分化过程。②再分化和③分化过程都是进行的有丝分裂，不是减数分裂，A错误。植物激素中生长素和细胞分裂素是启动细胞分裂、脱分化和再分化的关键性激素，B错误。离体的植物组织或细胞，在培养一段时间以后，会通过分裂形成愈伤组织，细胞没有出现分化，C错误。四倍体兰花的配子中有两个染色体组，花药离体培养所得的植株体细胞中有两个染色体组，D正确。
3．(2013·重庆卷)如图是单克隆抗体制备流程的简明示意图。下列有关叙述正确的是 A．①是从已免疫的小鼠脾脏中获得的效应T淋巴细胞 B．②中使用胰蛋白酶有利于杂交瘤细胞的形成 C．③同时具有脾脏细胞和鼠骨髓瘤细胞的特性 D．④是经筛选培养获得的能分泌特异性抗体的细胞群 答案：D解析：①应是效应B淋巴细胞，A项错误；②应使用诱导剂促进细胞的融合，动物细胞常用灭活的病毒，也可以用PEG(聚乙二醇)，B项错误；③是杂交瘤细胞，其既具有浆细胞分泌抗体的功能，又具有骨髓瘤细胞无限增殖的特点，C项错误。 4．如图为烟草在不同生长素、细胞分裂素浓度下的生长发育状况。据图判断下列分析合理的是()
Unit 1 enjoy your feelings! II C B D A D l Listening In Task 1 what a clumsy man! Keys: A C D C B Task 2 causes of depression Keys: (1)families (2)chemicals (3)information (4)certain (5)self-esteen (6)thinking patterns (7)mood (8)divorce (9)physical abuse (10)financial difficulties (11)stress (12)anxiety Task 3 happiness index Keys: B D A A C l Let’s Talk Keys: (1) shy (2) crying (3)scared (4) came down (5) fun (6) nice (7) two step (8) argue (9) touch (10) bad time (11) speak (12) comfortable (13) brother (14) adults (15) children (16) secondary (17) growing (18) learn l Further Listening and Speaking Task 1: Big John is coming! (S1) owner (S2) running (S3) drop (S4) run (S5) local (S6) yelling, (S7) lives!” (S8) As he’s picking himself up, he sees a large man, almost seven feet tall. (S9) The bartender nervously hands the big man a beer, hands shaking. (S10) “I got to get out of town! Don’t you hear Big John is coming?” Task 2 Reason and emotion Key : A B C C D
单元分题型练习unit 3 一、根据中文或首字母提示，填写所缺单词的适当形式。 1.By the end of February schools are opened t________ the country. 2.He is a f________ as an artist, but a success as an art teacher. 3.If we work with a strong will, we can o________ any difficulty, no matter how great it is. 4.He had great d________ in getting the work done within a week. 5.They sent the enemy ship to the b________ of the sea. 6.I ’ m so full that I couldn’ t eat another m________. 7.Hundreds of people leave their villages hoping to gain their f________ in cities. 8. A m________ country is one in which there are many mountains . 9.I found it ________ (令人惊讶的) that the young player beat the chess master in the game. 10.I still remember her ________ (特别的 ) way of smiling. 11.My family ________ ( 款待 ) him as an honored guest. 12.Elizabeth Fry helped to improve prison conditions and gave the ________ (无 家可归的 ) work and education. 13.After graduating from Peking University, he was ________ (幸运的 ) in having a good job. 14.I lived in an area of ________ (显着的 ) natural beauty. 15.A million dollars is a v________ amount of money. 二、请从下面方框中选择适当的单词或短语，并用其正确形式填空。 boil, chew, cruel, direct, sense, slide, star, swing, whisper, worn-out, badly off, content, cut off, knock, pick, star 1. She is ________ her job at the moment. 2. We shouldn ’ t be unhappy about being ________— many families are much worse off than we are. 3.It ’s easy to ________ my car from others in the parking place; it has an advertisement of Toshiba TV on the back of it. 4.Several months ago Harbin ________ its water supply for four days because of pollution fear in Songhua River, which is Harbin’ s main water source. 5.She has ________ some thirty films in all her life. 6.The boy rode very fast and ________ an old man. 7.She ________ into the room not wanting to wake the baby. 8.Anyone who likes watching people suffer is ________. 9.These cars are ________ and must be replaced. 10.When water ________, it changes into steam. 11.Do everything step by step, and don’t bite off more than you can ________. 12.His boss was out on business and couldn’ t come back in time, so ________ him to call off the meeting. 13.Daniel Radcliffe,who plays Harry Potter, attended the premiere Sunday Evening along with other cast members including Machael Gambon, who ________ as the kindly Albus Dumbledore.
第四册 Unit1 Lead in Task 1 Enraged, fuming ,furious , irritated, livid, outraged, blow up, flare up, fly into a fury/rage,hit the roof 、 Horrified, scared,terrified, scared to death, paralyzed with fear, feel a shiver run down one’sspine、 Beaming, cheerful,joyful, thrilled, as happy as a king, in seventh heaven, on top of theworld, over the moon、 Blue,brokenhearted, cheerless, depressed, heartbroken, down in the dumps, in lowspirits, get (a case of) the blues, out of sorts、 Task 2 C B D A D Listening In Task 1 A C D C B Task 2 (1) families (2) chemicals (3) information (4) certain symptoms (5) selfesteem (6) thinking patterns (7) mood (8) divorce (9) physical abuse (10) financial difficulties (11) stress (12)anxiety Task 3 B D A A C Let’s Talk (1) shy (2) crying (3) scared (4) came down (5) fun (6) nice (7) two sisters (8) argue (9) touch (10) bad time (11) speak (12) fortable (13) brother (14) adults (15) children (16) secondary (17) growing up (18) learn Further Listening and Speaking Task 1: owner ; running ; drop ; run; local ;yelling ; lives ; As he was picking himself up, he saw a large man, almost seven feet tall ; The bartender nervously handed the big man a beer,
—第一学期U n i t3试卷 八年级英语试卷 ( 考试时间：1；满分：100分） 听力部分( 一、听力（每小题1分，共 A)看图听句子，选出与你所听到的与句子内容相符的图画（其中有一幅是多余的）。 ( A) ( B) ( C) ( D) ( E) ( F) 1_________2__________3___________ 4 ___________5__________ B）听对话，根据对话内容选择问题的正确答案。（对话读两遍） 第一节：听下面六段对话，回答每段对话后的问题。 6. What did Jim use to do? A. See films. B. Watch TV. C. Swim. 7. Who taught Wang Wei to swim? A. His teacher. B. Nobody. C. Folk music. 8. Where are they going to meet? A. Their school gate. B. The Music Hall. C. The shop gate. 9. Does Li Ping’s mother like rock music? A. No, she doesn’t B. Yes, she does. C. No, she isn’t. 10. What was Helen doing at eight yesterday morning? A. Reading. B. Watching TV. C. Playing computer games.
11. What is Jack going to buy next week? A. A piano. B. A violin. C. A guitar. C）听对话，根据对话内容选择问题的正确答案。（对话读两遍） 第一节：听下面一段对话，回答12－13就问题 12 . What instrument is Tom going to learn? A. Piano. B. Drums. C. Guitar. 13. Why does Tom have to learn it? A. Because his parents want him to do. B. Because he likes playing it. C. Because his parents like playing it. 第二节：听下面一段对话，回答14－15小题 14. Who will go to the party with Maria? A. Li Hong B. Xiao Fang C. Jane 15.What can Xiao Fang do at the party? A. Sing classical music. B. Sing pop songs. C. Play the piano. 笔试部分（80分） Ⅱ单项选择从A、B、C 三个选项中选出一个可填入的最佳答案。（每小题1分，共15分） ( ) 21. I used to read novels, but now I it. I enjoy doing sports. A. hate B. enjoy C. like ( )22. - Why not go out and do some outdoor activities? - That's a good idea. Maybe I need . A. a stamp B. a change C. a book ( )23. Books are my friends . They give me knowledge and bring me ______. A. happy B. happiness C. sad ( )24. The book is _____. Most of the teaches are ______ in it . A. interesting interested B. interesting interesting C. interested interesting ( )25. ______ she is sick or not , she is always happy . A. Weather B. Whether C. If
植物细胞工程试题及详细解答 1 植物组织培养的过程可以归纳为：①脱分化②再分化③→④，对 ）D 此叙述有错误的是（A．②→③的再分化过程中，细胞增殖的方式为有丝分裂 B．植物组织培养依据的原理是细胞的全能性 C．③→④过程指植物的营养生长和生殖生长阶段 D．将①经脱分化培养成②时，再植上人造种皮可获得人工种子E．从理论上讲①可以是植物体的每一个细胞 F．①→③的培养过程中，应在培养基中加入水，无机盐，蔗糖，氨基酸，植物激素等 解析：A、愈伤组织再分化形成胚状体，细胞增殖的方式为有丝分裂，A正确； B、植物组织培养依据的原理为植物体细胞的全能性，即已经分化的细胞仍然具有发育成完整植株的潜能，B正确； C、植物的个体发育包括营养生长和生殖生长，C正确； D、只有将离体植物细胞或组织培养成具有生根发芽能力的胚状体结构③，包裹上人造种皮可获得人工种子，D错误．E.从理论上讲正确，但一般选择分化程度低全能性大的细胞。 ）D将胡萝卜韧皮部细胞培养成幼苗时，下列条件中不需要的是（2A. 具有完整细胞核的细胞
B. 一定的营养物质和植物激素 12 / 1 C. 离体状态 D. 导入特定基因 解析：植物细胞具有全能性的原因是每个细胞体细胞中都含有本物种体细胞的全套遗传物质。故A真确。在进行组织培养时需要立体的组织或细胞（具有完整的细胞核），若不离体只能选择性表达为不同的组织器官。故C正确。培养时还需要一定的遗传物质和植物激素（细胞分裂素生长素）B正确。而导入特定的基因是基因工程中的。）在下列各育种方式中，与组织培养技术无关的是（B3A．利用花药离体培养得到单倍体植株 B．秋水仙素处理二倍体幼苗，获得四倍体植株 C．通过组织培养培育人工种子 D．通过体细胞杂交培养“番茄一马铃薯”杂种植株 解析：花药离体培养时将花粉培育为新个体。A正确。秋水仙素处理二倍体幼苗，获得四倍体植株是利用染色体变异的原理。B错误。人工种子是将植物细胞经过组织培养形成胚状体再包装成人造种子C 正确。通过体细胞杂交培养“番茄一马铃薯”杂种植株采用了植物组织培养技术。D正确。 ）A4下列有关植物细胞与组织培养的叙述中，错误的是（A. 花药、胚不能作为组织培养的材料 B. 植物细胞具有全能性