U2L2
并联电路电压的规律并联电路两端总电压等于各支路两端电压
作业布置
《作业本》
第24页 第3、4、5、6填空题
（电路图要画）
下午5时50分
二、并联电路电压的规律
并联电路两端总电压等于各支路两端电压。且等于 电源两端电压。 即U=U1=U2 =U电源
并联电池组两端的总电压等于每节电池电压。 即U=U1=U2=U3
下午5时50分
2. 在图16.2-4 甲所示的电路中，闭合开关后 电压表V1的示数为2.5 V，V2 的示数应为_____V 2.5 ， V的示数应为_____V 2.5 。 在图16.2-4 乙所示的测量电路中，闭合开关 后电压表V1 的示数为2.5 V，V2 的示数为3.8 V， V的示数应_____V 6.3 。
下午5时50分
一个用电器工作时，要求电源电压是 6 V。可以将 4 节电压都是1.5V的干电 池
串
联起来使用；或者将
3
节电
压都是2V的铅蓄电池 串
联起来使用。
（课本第62页“动手动脑学物理”第1题）
下午5时50分
观察并思考
不同规格的两灯 泡串联。闭合开关， 两灯都能发光吗？发 光亮度一样吗？ 提出问题
下午5时50分
4. 请自行设计一个表格，对比电流表和电压表在使用方 面有哪些相同之处和不同之处。
仪表 电压表 电流表 测量电路中的电流
A
比较项
用途 不 同 连接方法 点 与电源相接 能直接测电源电压 并联在被测电路两端 串联在被测电路中 绝不允许不经用电器直接 接在电源两极 符号 测量电路两端的电压
想想做做
用电压表分别测量每节电池两端的电压，再把几节电 池串联或并联起来组成电池组，然后测量这个电池组两端 的电压。它们之间有什么关系？
每节电池电压 U1/V 1.5 U2/V 1.5 U3/V 1.5 串联后电压 U串/V 4.5 并联后电压 U并/V 1.5
U2L2_Means_of_transport
• 在形容词和副词比较级前， • 有时用much，far, still, a little， even， a lot 修饰，表示程度 eg.Tony is much taller than Tom. Tony比Tom高得多。 I am feeling even worse than before. 我感觉比之前甚至更糟了。 My parents get up a little earlier than me. 我的父母比我起床稍微早一点。
4. underground
1) n. 地铁 = metro, subway, tube • 乘地铁去…：take the underground to… = go to … by underground e.g. There is an underground near the supermarket. 超市旁有一个地铁。 2) a. 地下的 e.g. There is an underground car park near the supermarket. 超市旁有一个地下停车场。
2. transport n. & vt.
1) n. [c] 运输；交通（网） • public transport 公共交通 • air transport 航空运输 e.g. We should make our public transport better. 我们应该使我们的公共交通变得更好。 2) vt. 传送；运输 e.g. The bus transported us to the museum. 公交车把我们运到了博物馆。
long--longer
• 以字母e结尾的形容词，只加-r nice—nicer large--larger
多音节词在词前加more ，例如 famous convenient important delicious interesting more famous more convenient more important more delicious more interesting
CREE XM-L2 U2 LED 手持闪光灯用户手册说明书
®User ManualFeatures• Utilizes a CREE XM-L2 U2 LED • Maximum output up to 920 lumens• Integrated metal micro textured reflector for optimal peripheral illumination• Boasts a peak beam intensity of 9,000 cd and a throw distance of up to 190 meters • Tail switch designed for tactical applications• Side switches for brightness levels and modes adjustment • Features intelligent memory effect• Red LED provides constant/flashing illumination• Displays battery voltage with red light (accurate to 0.1V)• High efficiency constant current circuit enables maximum runtime of 170 hours • Direct access to turbo/red light mode• Reverse polarity protection prevents damage from incorrectly inserted batteries • Stainless steel titanium-plated two-way clip• Toughened ultra-clear mineral glass with anti-reflective coating • Robust HAIII military grade hard-anodized• Waterproof in accordance with IPX-8 (two-meter submersible)• Tail stand capabilityDimensionsLength: 3.59” (91.2mm)Head Diameter: 1” (25.4mm)Tail Diameter: 1” (25.4mm)Weight: 2.01oz (57g)(without battery)Thanks for purchasing NITECORE!SYSMAX Industry Co., Ltd.TEL: +86-20-83862000 FAX: +86-20-83882723 E-mail: *****************Web: Address ： Rm1401-03, Glorious Tower, 850 East Dongfeng Road,Guangzhou, China 510600Battery OptionsThe All-Round Flashlight ExpertBrightness LevelsWhen the MT10C is switched on, press the step-up switch repeatedly to switch from the following brightness levels: red beacon-red light-ultralow-low-medium-high-turbo. The MT10C has memory effect. When it is switched on, the MT10C will enter the brightness level last used.When the MT10C is switched on, press the step-down switch repeatedly to lower its brightness until red beacon mode, after which there is no cycling back to other brightness levels.Direct Access to Red Light Mode:When the MT10C is switched on, press and hold the step-down switch for over one second to access the red light mode; OR:When the MT10C is switched off, press and hold the step-down switch and press the button on the tailcap to access the red light mode.Direct Access to Turbo:When the MT10C is switched on, press and hold the step-up switch for over one second to access turbo output (920 lumens); OR:When the MT10C is switched off, press and hold the step-up switch and press the button on the tailcap to access turbo output (920 lumens).Note: After three minutes' using of turbo mode, the flashlight will lower its output automatically to prevent overheating, and efficiently ensure the battery runtime.Special modes (Strobe/Location/SOS)With the light switched on, press both side switches to enter strobe mode. When in strobe mode, press both side switches again to cycle through Location Beacon, SOS, and Strobe modes. To exit and resume the brightness level last used, simply press the step-up or step-down switch. The MT10C has memory effect in strobe mode. If it is turned off in strobe mode, it will enter strobe mode immediately when switched on again.Power TipsWith the light switched off, press both side switches and the button on the tailcap to activate the red power indicator to blink and indicate battery voltage (accurate to 0.1V). For example, when battery voltage is at 4.2V, the red power indicator will blink 4 times, followed by a one second pause and another 2 blinks. Different voltages represent the corresponding remaining battery power levels.AccessoriesHolster, clip, lanyard, spare tailcap cover, spare O-ringNOTICEThe stated data has been measured in accordance with the international flashlight testingstandards ANSI/NEMA FL1, using one high quality IMR18350 Li-ion battery (3.7V, 700mAh) or Operating InstructionsBattery InstallationInsert one CR123 or IMR18350 battery as illustrated.WARNING1. Ensure batteries are inserted with the positive (+) end pointing towards the head. The MT10C will not be operational with incorrectly inserted battery.2. Please stop using and remove a depleted IMR18350 battery to avoid potential battery damage.Momentary IlluminationMomentary illumination can be achieved by switching theMT10Cflashlight off and holding the tail switch halfway down. Releasing switch turns the light off.On / Off OperationTo switch ON: Press the button on the tailcap all the way down until a click is heard.To switch OFF: Press the button on the tailcap all the way down once again until a click is heard.Standby Mode:When power is off, pre ss both side switches and the button on the tailcapsimultaneously to activate the red power indicator to flash and indicate battery voltage. Three seconds after electrical voltage is reported, the MT10C enters standby mode where the indicator flashes once every three seconds. In standby mode, the MT10C will operate for approximately six months with the indicator on .Low Power Full Power3.2V2.4V2.8V3.0VLow PowerFull PowerIMR18350:CR123:Changing / Charging BatteryBattery should be replaced or recharged when output appears to be dim or the flashlight becomes unresponsive.MaintenanceEvery 6 months, threads should be wiped with a clean cloth followed by a thin coating of silicon-based lubricant.Warranty ServiceAll NITECORE® products are warranted for quality. Any defective / malfunctioningNITECORE® product can be repaired free of charge for a period of 60 months (5 years) from the date of purchase. Beyond 60 months (5 years), a limited warranty applies, covering the cost of labor and maintenance, but not the cost of accessories or replacement parts.The warranty is nullified in all of the following situations:1. The product(s) is/are broken down, reconstructed and/or modified by unauthorized parties.2. The product(s) is/are damaged through improper use.3. The product(s) is/are damaged by leakage of batteries.For the latest information on NITECORE® products and services, please contact a local NITECORE®**********************************************※All images, text and statements specified herein this user manual are for reference purpose only. Should any discrepancy occurs between this manual and information specified on, information on our official website shall prevail. Sysmax Industry Co., Ltd. reserves the rights to interpret and amend the content of this document at any time without prior notice.Please find us on facebook: NITECORE Flashlights20151021。
孙彦琳 3下U2 L2 Is this your cap教案
Is this your cap?教学设计【教材解读】本课时为低年级的对话教学，主要内容是Miss Zhang在教室里检到顶帽子，询同失主,学习单词cap和核心句型Is this your cap?及应答语Yes, it is/No. it int谈论衣物的所属关系,培养学生在真实的语境中运用英语的能力，为进一步学习is引导的一般疑问句打下基础。
经过三年级上学期-学期的英语学习，学生已经掌握了问候、介绍等一些基本的交际用语,掌握了一些有关家庭成员、身体部位、颜色、数字的词汇，初步掌握了一此英语学习的方法。
已经学过句型This is my/your...并能够熟练地运用该句型介绍或表达拥有的物品。
本课在此基础上学习问句Is this your..?及应答语Yes,it is./No,it isn't.【教学目标】1.学生能够在语境中准确使用cap, sweater 等词汇，并灵活运用句型Is this your cap? 及答语Yes，it is./No, it isn't.2.学生能理解并运用所学句型描述自己和他人的衣物并谈论衣物的所属关系。
3.学生能够借助本课创设的情境,培养良好的整理保管物品的习惯和拾金不昧的优良品质。
在练习、表演、说唱等活动中激发学习兴趣，体验成功的快乐。
【教学重点】学生能够准确把握文本内容，能够在语境中准确使用cap，sweater等词汇，并灵活运用句型Is this your cap?及答语Yes, it is./No, it isn't.【教学难点】句型Is this...?语音语调的把握及在情境中的灵活运用。
【教具学具准备】多媒体课件、单词卡、头饰、衣帽。
【教学过程】一、 Warming up1.教师Greetings：T: Now class begins.Hello,boys and girls .How are you? Now let’s sing a song:This is Jenny.(师生拍手唱歌)2. T: Now let’s chant:T:Pen,pen, Ss: This is my pen.Pencil,pencil,This is my pencil.Book, book,This is my book.Ruler,ruler,This is my ruler.Desk, desk,This is my desk.Sweater, sweater, This is my sweater.师说前两个单词pen, pen，生立刻举高或指着自己的实物说后一句。
新译林牛津高中英语必修二U2L2 Reading II课件
Exercise
Revise the following sentences using cautious language.
As people get older, they have more difficulty remembering things.
As people get lder, they tend to have more difficulty remembering things.
3 Adverbs and adverbial phrases
probably usually sometimes mainly in general generally speaking ...
3 Adverbs and adverbial phrases
In general, you should have your meal an average of 1.5 to 2.5 hours before exercising. (page 17, lines 30–32)
Exercise
Revise the following paragraph using cautious language.
People do not like getting up early for morning exercise in cold weather. They want to get as much sleep as they can. However, truly healthy people get their workout done anyway. They know they will feel great afterwards.
4 Adjectives Adj.
上海新世纪版英语六年级下册6BUnit2Lesson2U2L2同步讲义教案
学员编号：年级：六年级课时数：学员姓名：辅导科目：英语学科教师：授课类型T U2L2基础知识梳理星级★★★教学目标1、掌握本课所学的词汇，包括一词多义及词性转换等。
2、掌握本课所学的重点句型，学会用简单的英语问路。
授课日期及时间段（建议2-5分钟）Transportation备注：car 小汽车lorry 大客车van 厢式货车subway 地铁boat小船ferry 轮渡aeroplane 飞机airplane 飞机helicopter 直升飞机motorcycle 摩托车carriage 四轮马车light rail 轻轨mini-bus 小巴fire engine消防车ambulance 救护车tractor 拖拉机批注：先让学生自己用英文来列举他、她所知道的交通工具，然后再和他/她一起辨认上面这些交通工具，并用英T同步-U2L1基础知识梳理1文标注出来。
（建议20-25分钟）一、词汇Words1. means n . 手段，方法；工具（单复数同形）e. g. ) The quickest means of travel is by plane. 最快的交通工具是飞机。
Homework should not be a means of controlling children.词组: means of transport批注：这里要注意和“way”进行区别，两者在表示方式时可以互换，但是means侧重指一种手段或者是完成某事的一种工具，而way侧重指做某事的一种方式，不能翻译成“工具”或“手段”。
2. coach n . 长途汽车，(火车) 客车车厢，教练(eg) The foreigner over there is the coach of the volleyball team.那边的外国人是这个排球队的教练。
We went to Paris by coach/on a coach. 我们乘长途汽车去的巴黎。
U2L2--07版
Listening
Listen to the radio programme. Use the Listening Strategies to help you. Try to get the general idea. (P24,Ex.4). Then do P25, Ex.5
1. Martin Luther King was from the United States. T 2. Martin’s first experience of racism was with a bus driver. F 3. His first victory was to win the equal rights for blacks to sit on buses. T 4. He went to prison sixteen times for organising protests. F
经验 种族主义 平等的 影响 胜利 抗议 游行 斗争
Optional
unfair treatment of people, or violence against them, because they belong to a different race from your own racism an occasion when people come together in public to express disapproval or opposition to something protest power to have an effect on th way someone or something develops, behaves, or thinks without using direct force or commands influence
鲁科版英语课件4上U2L2
小组展示 记忆力大比拼
“记忆大比拼”
30秒内，两人一组，每人说一句，看哪个组说的 最多最准确。
Jenny likes dancing.
Peter likes singing.
groupwork
Read in groups. talking
Listen and choose
--What’s Jenny’s hobby（爱好）？ --She likes__________.
A. dancing B. dance C. dances
Do you want to know other friends hobbies?
Do you have any questions? Read in groups..
二.【初生牛犊不怕虎】试读20页课文，找出与以上新单词相关的句子，并翻译。
1.what’s your hobby?________________________ 2.My hobby is paper cutting.___________________ 3.What’s your hobby,aunt?____________________ 4.I like cooking. _________________
短语：
playing the drums
playing the erhu playing the piano dancing drawing
singing
……
德育
Having more hobbies can make your life more colourful!
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2、（英）地铁n./地下的a./在地（面）下ad.
3、手段，方法，工具n.
4、长途汽车n.
5、提高的，架高的a.
6、便利的，方便的a.
7、领导者n.
8、舒适的a.
9、（用于形容词、副词的比较级之后）比conj.
10、运输，交通（网）n./传送，运输vt.
11、戏弄，哄骗，小孩n./开玩笑，哄骗vt.&vi.
12、更多的，更，更多a.,ad.&n.
13、摩托车n.
14、既…又…
15、出租汽车n.
16、景色，观点n.
17、交通工具
18、小心地，仔细地ad.
19、营地，野营n.&vi.
20、假日，节日，假期n.
21、轻轨
22、高架公路
23、夏令营
24、人行横道线，斑马线
25、旅行vi.&n.
26、安全的，可靠的a.
27、步行
28、绝不
29、尽一切办法
30、你在开玩笑吗？
32、安然无恙
33、旅行社
34、清楚地看见
35、去夏令营
36、去国外旅行
37、通过，靠
38、公共交通
39、不大于；只是，仅仅
40、对于…的观点
41、鉴于，考虑到
42、把…看作…
43、做运动
44、公交车站
45、在你方便时
46、为了…的安全
47、引起
48、你最喜欢哪种交通方式？
练习：
一、根据首字母提示完成句子
1、The quickest m of travel is by plane.
2、Can I r the bicycle?
3、My mother likes to travel by air. She thinks it’s faster and more c.
4、She goes to school not by bus, but on f.
二、用所给单词的适当形式填空
1、It was yesterday than today. ( hot )
2、This horse is very , but that horse is much than this one. ( strong )
3、Which is , English or Chinese? ( difficult )
4、I’m too tired to go any . ( far )
5、I’m much better today, but she is even . ( bad )
三、按要求改写句子，一空一词
1、My mother walks to her company every day.（保持意思不变）
My mother goes to her company every day.
2、Jack likes traveling by plane. Rose likes traveling by plane, too.（合并为一句）
Jack Rose like traveling by plane.
3、It took me half an hour to do the homework.（保持意思不变）
I half an hour my homework.
4、I went to Jinshan Park by underground.（对划线部分提问）
I go to Jinshan Park?
5、father, Hong Kong, plane, to, my, traveled, last, by, last week（连词成句）
四、根据汉语提示完成下列句子
1、I came here by bus. , Mike?（你呢）
2、Traveling by plane is .（既快捷又舒适）
3、My father likes to .（乘长途汽车旅游）
4、I usually go to school .（步行）
5、We can on the way.（欣赏景色）
五、选择最恰当的答案
（）1、It him a quarter of an hour to read English yesterday.
A. spent
B. paid
C. took
D. cost
（）2、Is there today?
A. something new
B. new something
C. anything new
D. new anything （）3、Rose likes to play the piano, doesn’t ?
A. she
B. Rose
C. her
D. herself
（）4、Which is , a bus or a motorcycle?
A. the fast
B. faster
C. fastest
D. fast。