Ⅰ.Match the topic sentence with proper paragraph.
Para.1A．We visited the moon in our spaceship!
Para.2 B．When we got there, I wanted to explore immediately.
Para.3 C．But returning to the earth was very frightening.
Para.4 D．Before we left, Li Yanping explained to me ... the most powerful.
答案：Paras.1～4ADBC
Ⅱ.Choose the best answers according to the text.
1．When we were going up, we felt ________．
A．we were pressed against our seats
B．we were lighter than we are on the earth
C．as if we were flying
D．the rocket was shaking strongly
2．Why can't the spaceship fall back to the earth?
A．Because the moon's gravity pulls it up.
B．Because it is too far away from the earth.
C．Because the earth has no gravity.
D．Because the spaceship is not very heavy.
3．When I was on the moon, I felt I was ________ than I am on the earth.
A．slower B．heavier
C．cleverer D．lighter
4．If a baby is growing on the moon, when he grows up, he will grow ________ than he is on the earth.
A．taller B．shorter
C．fatter D．thinner
5．The passage mainly talks about ________．
A．what the moon is
B．my visit to the moon
C ．the difference between the earth and the moon
D ．Li Yanping, my friend, who is an astronaut
答案：1～5 ABDAB
Ⅰ.单词拼写
1．A truck went out of control and crashed (碰撞) into the back of a bus.
2．The young man knows little about Newton's law of gravity (万有引力).
3．The smell of new bread floated (飘动) up from the kitchen.
4．Don't pull (拉) so hard or the handle will go off.
5．Britain has a temperate climate (气候)．
6．Eggs are sold by weight (重量)．
Ⅱ.拓展词汇
1．biology n ．生物学→biologist n ．生物学家
2．gentle adj .温和的；文雅的→gently ad v .温和地
3．physicist n ．物理学家→physics n ．物理学→physical adj .物理的；物理学的；体力的
4．extinct adj .灭绝的；绝种的→extinction n ．灭绝；绝种
5．weightlessly ad v .失重地→weightless adj .失重的
[巧记单词]
Ⅲ.补全短语
1．block out 挡住(光线)
2．break out 突发；爆发
3．cheer up 感到高兴；感到振奋
4．now that 既然
5．watch out (for) 密切注视；当心；提防
6．get the hang of 熟悉；掌握；理解
1．[教材原句]When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's.
当我们更接近月球时，就会感到月球的引力在拉我们。但是，月球的引力不像地球的引力那么大。
[句型点拨]as ＋adj.＋a/an ＋n.＋as意为“像……一样的……”。
[佳句赏析]Please give them encouragement to live as rich and full a life as you do.
请给予他们鼓励，让他们和你们一样过着丰富多彩又充实的生活。
2．[教材原句]But when I tried to step forward, I found I was carried twice as far as on the earth and fell over.
当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。
[句型点拨]twice as far as ...属于“倍数＋as＋形容词/副词原级＋as ...”结构，是一种倍数的表示方法。
[佳句赏析]Our new library is four times as large as the old one.
新图书馆是旧图书馆的4倍大。
3．[教材原句]“Oh dear，”I cried, “walking does need a bit of practice now that gravity has changed.”
“天哪，”我大声说，“既然重力改变了，看来走路也的确需要练一练了。”
[句型点拨]从属连词now that意为“既然”，引导让步状语从句。
[佳句赏析]Now that everybody is here, we can begin the meeting.
既然大家都到齐了，我们可以开始开会了。
[课文对译]
A VISIT TO THE MOON
Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!
Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. “Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground.” I asked. “We are too far from the earth now to feel its pull，”he explained, “so we feel as if there is no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's.”I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.
When we got there, I wanted to explore immediately. “Come on，”I said. “If you are right,
my weight will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less！”I laughed and climbed down the steps from the spaceship. But when I tried to step forward, I found
I was carried twice as far as on the earth and fell over. “Oh dear，”I cried, “walking does need
a bit of practice now that gravity has changed.” After a while I got the hang of it and we be gan to enjoy ourselves.
Leaving the moon's gravity was not as painful as leaving the earth's. But returning to the earth was very frightening. We watched, amazed as fire broke out on the outside of the spaceship as the earth's gravity increased. Again we were pushed hard into our seats as we came back to land. “That was very exhausting but very exciting too，”I said. “Now I know much more about gravity! Do you think we could visit some stars next time？”“Of course，”he smiled, “which star would you like to go to？”
月球之旅
我的朋友李彦平是一位天文学家，上个月我有幸得到一个机会同他一起去太空旅行。我们乘宇宙飞船参观了月球！
在启程以前，李彦平向我解释说，在我们的航行中会有三次引力的改变，而第一次的改变将是最强的。随后我们就启航了。随着火箭的升空，由于我们在努力挣脱地球的引力，我们被向后推在座位上。这种引力太强了，以至于我们彼此间都不能说话了。随后，这个力量慢慢减小，我才能够同他讲话。我问道：“为什么太空船不会向后朝地球的方向落下去呢？在地球上的时候，如果我从树上掉下来，总会朝地上落下去的。”李彦平解释说：“现在我们离地球太远了，感觉不到地球的拉力，所以我们感觉好像没有地球引力了。当我们更接近月球时，就会感到月球的引力在拉我们。但是，月球的引力不像地球的引力那么大。”我立刻感到很高兴，由于失重我在太空舱里飘来飘去，我望着(身后的)地球越来越小，而(前方的)月球越来越大。
我们到达月球时，我就想立即进行探测。“来吧，”我说，“要是你讲得对，我的重量就会比在地球上小，因为月亮比地球小，而我就能更自由地活动了。如果我在月球上待的时间足够长的话，我甚至可能长得更高，我的体重肯定也会变得更轻！”我笑着从飞船的梯级上爬下来。而当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。“天哪，”我大声说，“重力改变了，看来走路也的确需要练一练了。”过了一会儿，我才掌握了走路的诀窍，这才开始感到自如了。
摆脱月球引力不像摆脱地球引力那样痛苦。但是返回到地球的经历却是非常吓人的。我们惊奇地看着，随着地球引力的增加，宇宙飞船的外层燃烧起火。当我们回到地面时，我们又感到被重重地推倒在座位上。我说道：“真是精疲力竭了，但也很激动人心。关于引力，我现在就懂得更多了。你认为下次我们可以上星球上去参观吗？”“当然可以”，他笑着说，“你想到哪颗星球上去呢？”
1．As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity. (P30)
随着火箭的升空，由于我们在努力挣脱地球的引力，我们被向后推在座位上。
★pull n. & vt.拉(力)；拖；牵引(力)
pull together齐心协力
pull away (汽车等)开走；迅速后移避开
pull down 拆毁；摧毁
pull in (车辆)进站停靠；靠边停靠
pull out 驶出；拉出；拔出
①(2013·天津高考写作)So long as we pull together there's no mountain top we can't conquer.
只要我们齐心协力，就没有攀登不上的高峰。
②The train pulled in and all the passengers got off.
火车进站了，所有的乘客都下了车。
③The father saw the train his son was on pull out,_with his eyes full of tears.
那位父亲眼含泪水看着载着他儿子的火车驶出站。
2．When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's. (P31)
当我们更接近月球时，就会感到月球的引力在拉我们，但是月球的引力不像地球的引力那么大。
★as strong a pull as the earth's 属于“as＋adj.＋a/an＋n.＋as”结构，意为“像……一样的……”，其中的名词必须是可数名词的单数形式，此结构用于否定句中可用“not so/as ... as ...”结构。
as ... as结构的其他几种形式：
①I want to own as large a house as hers.
我想拥有一所像她的那样的大房子。
②He is as_clever_a_boy_as his brother.
他和他的哥哥一样是个聪明的孩子。
③You've made_as_many_mistakes_as I have.
你犯的错误和我犯的一样多。
3．I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger. (P31)
我立刻感到很高兴，由于失重我在太空舱里飘来飘去，我望着(身后的)地球越来越小，而(前方的)月球越来越大。
★cheer up(使)高兴；(使)振奋；感到高兴；感到振奋
cheer sb. up使某人振作起来
cheer sb. on (比赛中)以喝彩声鼓励；为某人加油
cheer for 为……而欢呼
①Upon arriving at the classroom, the author was cheered up by a warm welcome.
一走进教室，作者因为热烈的欢迎而高兴起来。
②When I'm feeling sad my mother tells me funny stories to cheer_me_up．
当我感到忧伤时，我的母亲就给我讲有趣的故事让我高兴起来。
③They do this in order to encourage crowds to cheer their sports team on．
他们这样做是为了鼓励人们为他们的球队加油。
4．But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. (P31)
而当我试着向前迈步时，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。
★twice as far as ...是一种倍数的表示方法，意为“是……的两倍远”。
英语中常见的倍数表达法有：
A＋be＋倍数＋as＋adj./ad v.原级＋as B
A＋be＋倍数＋adj./ad v.比较级＋than B
A＋be＋倍数＋the＋名词(size/weight/length ...)＋of B
A＋倍数＋what从句，表示“A是……的多少倍”
①最近发现的一颗行星几乎是地球的三倍大。(一句多译)
→A new planet discovered recently is almost three_times_as_large_as Earth.
→A new planet discovered recently is almost three_times_bigger_than Earth.
→A new planet discovered recently is almost three_times_the_size_of_ Earth.
②The world's population has grown to more than six times what it was in 1800.
目前世界人口与1800年相比已经增长到当时的六倍多。
5．“Oh dear，”I cried, “walking does need a bit of practice now that gravity has changed.”(P31)
“天哪，”我大声说，“既然重力改变了，看来走路也的确需要练一练了。”
高中英语人教版必修三单词表． 必修3 Unit 1 1、发生 2、美；美人 收获；收割3、庆祝；祝贺4、狩猎者；猎人、5(使)饿死；饿得要死、6起源；由来；起因7、8、宗教上的;信奉宗教的;虔诚的 9、季节的；季节性的 10、祖先；祖宗 11、（日本）盂兰盆节 坟墓；墓地12、熏香；熏香的烟13、14、纪念；追念 15、墨西哥（拉丁美洲国家） 16、节日；盛宴 17、头脑；头骨 18、骨；骨头 19、万圣节前夕；诸圣日前夕
信任；信心；信仰20、 21、盛装；打扮；装饰 欺骗；诈骗;窍门诡计;恶作剧22、23、搞恶作剧；诈骗；开玩笑 诗人、2425、哥伦布日 26、到来；到达；到达者 27、克利斯朵夫·哥伦布 28、获得；得到 29、独立；自主 30、独立的；自主的 搜集；集合；聚集31、 32、农业；农艺；农学 农业的；农艺的、33授予；判定奖；奖品34、 35、产品；（尤指）农产品 雄禽；公鸡36、37、赞美；钦佩；羡慕 38、充满活力的;精力充沛的;积极的 39、期望；期待；盼望 狂欢节；（四旬斋前的）饮宴狂欢；嘉年华（会）40、 41、月的；月亮的；阴历的耶稣)复活节42、(43、游行；阅兵；检阅、日夜；昼夜；整天4445、衣服 2 必修3 基督徒；信徒、46基督教的；信基督教的 47、耶稣 48、樱桃；樱桃树 49、花开花 50、好像 51、玩得开心 52、习惯；风俗 53、遍及全世界的；世界性的 玫瑰花蕾54、55、愚人；白痴；受骗者 干傻事；开玩笑傻的 必要性；需要56、57、许可；允许 预言；预报；预告58、59、样子；方式；时尚 60、特立尼达岛 61、卡拉（女名） 62、哈利（男名） 63、（汽车等）停放 64、停车场 65、圣瓦伦廷节；人节 66、出现；到场 67、守信用；履行诺言 68、屏息；屏气 69、道歉；辩白 70、淹没；溺死；淹死
普通高中课程标准实验教科书《英语》电子课本 Book 3 Unit 1 Festivals around the world B3U1P1-3 FESTIV ALS AND CELEBRATIONS Ancient Festivals Festivals and celebrations of all kinds are held everywhere. The most ancient festivals would celebrate the end of the cold weather, planting in spring and harvest in autumn. Other celebrations were held when hunters could catch animals. They would starve if food was difficult to find, so they celebrated when they had food. They lit fires and made music because they thought these festivals would bring a year of plenty. Festivals of the Dead Some festivals are held to honour the dead, or satisfy and please the ancestors, who could return either to help or to do harm. In Japan the festival is called Obon, when people should go to clean the graves and light incense in memory of their ancestors. They light lamps and play music because they think that this will lead the ancestors back to earth. In Mexico they have the Day of the Dead in early November. On this important feast day, people might eat food in shape of skulls, and cakes with “bones” on them. They offer food, flowers and gifts to the dead. The festival of Halloween had its origin as an event in memory of the dead. It is now a children’s festival, when they can go to their neighbours’ homes and ask for sweets. They dress up and try to frighten people. If they are not given anything, the children might play a trick. Festivals to Honour People Festivals can be held as an honour to famous people or to the gods. One of these is the Dragon Boat Festival in China, which honours the famous ancient poet, Qu Yuan. Another is Columbus Day in the USA, in memory of the arrival of Christopher Columbus in America. In India there is a national festival on October 2 to honour Mahatma Gandhi, the leader who helped gain India’s independence from Britain. Harvest Festivals Harvest and Thanksgiving festivals can be very happy events. People are grateful because their food is gathered for the winter ,and because a season of agricultural work is over. In European countries it is the custom to decorate churches and town halls with flowers and fruit, and people get together to have meals. Some people might win awards for their animals, flowers, fruits and vegetables, like the biggest watermelon or the most handsome rooster. In China and Japan there are mid-autumn festivals, when people admire the moon and give gift of mooncakes. Spring Festivals The most energetic and important festivals are the ones that look forward to the end of winter and to the coming of spring. At the Spring Festival in China, people eat dumplings, fish and meat, and may give children lucky money in the red paper. There are dragon dances and carnivals, and families celebrate the lunar New Year together. In some Western countries there are very exciting carnivals, which take place forty days before Easter, usually in February. They might include parades, dancing in the streets day and night, loud music and colourful clothing of all kinds. Easter is an important religious and social festival in Christian countries. It celebrates the return of Jesus for Christians and it also celebrates the coming of spring. In Japan, the Cherry Blossom Festival happens a little later. The country is covered with cherry tree flowers so that it looks as though it might be covered with pink snow. People love to get together to eat, drink and have fun with each others. Festivals let us enjoy life, be proud of our customs and forget our daily life for a little while.
按住Ctrl 键单击鼠标打开教学视频动画全册播放 1.1．1 任意角 教学目标 （一） 知识与技能目标 理解任意角的概念(包括正角、负角、零角) 与区间角的概念. （二） 过程与能力目标 会建立直角坐标系讨论任意角,能判断象限角,会书写终边相同角的集合；掌握区间角的集合的书写． （三） 情感与态度目标 1． 提高学生的推理能力； 2．培养学生应用意识． 教学重点 任意角概念的理解；区间角的集合的书写． 教学难点 终边相同角的集合的表示；区间角的集合的书写． 教学过程 一、引入： 1．回顾角的定义 ①角的第一种定义是有公共端点的两条射线组成的图形叫做角. ②角的第二种定义是角可以看成平面内一条射线绕着端点从一个位置旋转到另一个位置所形成的图形． 二、新课： 1．角的有关概念： ①角的定义： 角可以看成平面内一条射线绕着端点从一个位置旋转到另一个位置所形成的图形． ②角的名称： ③角的分类： ④注意： ⑴在不引起混淆的情况下，“角α ”或“∠α ”可以简化成“α ”； ⑵零角的终边与始边重合，如果α是零角α =0°； ⑶角的概念经过推广后，已包括正角、负角和零角． ⑤练习：请说出角α、β、γ各是多少度? 2．象限角的概念： ①定义：若将角顶点与原点重合，角的始边与x 轴的非负半轴重合，那么角的终边(端点除外)在第几象限，我们就说这个角是第几象限角． 例1．如图⑴⑵中的角分别属于第几象限角？ 正角：按逆时针方向旋转形成的角 零角：射线没有任何旋转形成的角 负角：按顺时针方向旋转形成的角 始边 终边 顶点 A O B
例2．在直角坐标系中，作出下列各角，并指出它们是第几象限的角． ⑴ 60°； ⑵ 120°； ⑶ 240°； ⑷ 300°； ⑸ 420°； ⑹ 480°； 答：分别为1、2、3、4、1、2象限角． 3．探究：教材P3面 终边相同的角的表示： 所有与角α终边相同的角，连同α在内，可构成一个集合S ＝{ β | β = α + k ·360 ° ， k ∈Z}，即任一与角α终边相同的角，都可以表示成角α与整个周角的和． 注意： ⑴ k ∈Z ⑵ α是任一角； ⑶ 终边相同的角不一定相等，但相等的角终边一定相同．终边相同的角有无限个，它们相差 360°的整数倍； ⑷ 角α + k ·720 °与角α终边相同，但不能表示与角α终边相同的所有角． 例3．在0°到360°范围内，找出与下列各角终边相等的角，并判断它们是第几象限角． ⑴－120°；⑵640 °；⑶－950°12＇． 答：⑴240°,第三象限角；⑵280°,第四象限角；⑶129°48＇,第二象限角； 例4．写出终边在y 轴上的角的集合(用0°到360°的角表示) ． 解:{α | α = 90°+ n ·180°,n ∈Z}． 例5．写出终边在x y =上的角的集合S,并把S 中适合不等式－360°≤β＜720°的元素β写出来． 4．课堂小结 ①角的定义； ②角的分类： ③象限角； ④终边相同的角的表示法． 5．课后作业： ①阅读教材P 2-P 5； ②教材P 5练习第1-5题； ③教材P .9习题1.1第1、2、3题 思考题：已知α角是第三象限角，则2α，2 α 各是第几象限角？ 解：α 角属于第三象限， 正角：按逆时针方向旋转形成的角 零角：射线没有任何旋转形成的角 负角：按顺时针方向旋转形成的角
人教版选修4第一章《化学反应与能量变化》测试题（A卷） （45分钟，100分） 一、单项选择题（每小题4分，共60分） 1．下列措施不能达到节能减排目的的是（） A．利用太阳能制氢燃料B．用家用汽车代替公交车 C．利用潮汐能发电D．用节能灯代替白炽灯 2. 未来氢气将作为新能源的优点的是（） ①燃烧时发生氧化反应②充分燃烧的产物不污染环境 ③氢气是一种再生能源④燃烧时放出大量热量 A. ①②③ B. ①②④ C. ①③④ D. ②③④ 3．下列变化过程，属于放热反应的是（） ①液态水变成水蒸气②酸碱中和反应③浓H2SO4稀释 ④固体NaOH溶于水⑤ H2在Cl2中燃烧⑥弱酸电离 A、②③④⑤ B、②③④ C、②⑤ D、①③⑤ 4．下列对化学反应的认识错误的是（） A．一定有化学键的变化B．一定会产生新的物质 C．一定有物质状态的变化D．一定伴随着能量的变化 5．25℃、101 kPa下，2g氢气燃烧生成液态水，放出285.8kJ热量，表示该反应的热化学方程式正确的是（） A．2H2(g)+O2(g) == 2H2O(1) △H＝―285.8kJ／mol B．2H2(g)+ O2(g) == 2H2O(1) △H＝+571.6 kJ／mol C．2H2(g)+O2(g) == 2H2O(g) △H＝―571.6 kJ／mol D．H2(g)+1/2O2(g) == H2O(1) △H＝―285.8kJ／mol 6．热化学方程式C(s)＋H2O(g) ==CO(g)＋H2(g)；△H ＝+131.3kJ/mol表示（）A．碳和水反应吸收131.3kJ能量 B．1mol碳和1mol水反应生成一氧化碳和氢气，并吸收131.3kJ热量 C．1mol固态碳和1mol水蒸气反应生成一氧化碳气体和氢气，并吸热131.3kJ D．1个固态碳原子和1分子水蒸气反应吸热131.1kJ 7．已知25℃、101kPa条件下： 4Al (s) + 3O2 (g) == 2Al2O3 (s) △H = -2834.9 kJ·mol-1 4Al (s) +2O3 (g) ==2Al2O3 (s) △H = -3119.91 kJ·mol-1 由此得出的结论正确的是（） A．等质量的O2比O3能量低，由O2变O3为吸热反应 B．等质量的O2比O3能量低，由O2变O3为放热反应
Unit 1 Festivals around the world FESTIVALS AND CELEBRATIONS Festivals and celebrations of all kinds have been held everywhere since ancient times. Most ancient festivals would celebrate the end of cold weather, planting in spring and harvest in autumn. Sometimes celebrations would be held after hunters had caught animals. At that time people would starve if food was difficult to find, especially during the cold winter months. Today’s festivals have many origins, some religious, some seasonal, and some for special people or events. Festivals of the dead Some festivals are held to honour the dead or to satisfy the ancestors, who might return either to help or to do harm. For the Japanese festival Obon, people should go to clean graves and light incense in memory of their ancestors. They also light lamps and play music because they think that will lead the ancestors back to earth. In Mexico, people celebrate the Day of the Dead in early November. On this important feast day, people eat food in the shape of skulls and cakes with “bones” on them. They offer food, flowers and gifts to the dead. The Western holiday Halloween also had its origin in old beliefs about the return of the spirits of dead people. It is now a children’s festival, when they can dress up and go to their neighbours’ homes to ask for sweets. If the neighbours do not give any sweets, the children might play a trick on them. Festivals to Honour People Festivals can also be held to honour famous people. The Dragon Boat Festival in China honours the famous ancient poet, Qu Y uan. In the USA, Columbus Day is in memory of the arrival of Christopher Columbus in the New World. India has a national festival on October 2 to honour Mohandas Gandhi, the leader who helped gain India’s independence from Britain. Harvest Festivals Harvest and Thanksgiving festivals can be very happy events. People are grateful because their food is gathered for the winter and the agricultural work is over. In European countries, people will usually decorate churches and town halls with flowers and fruit, and will get together to have meals. Some people might win awards for their farm produce, like the biggest watermelon or the most handsome rooster. China and Japan have mid-autumn festivals when people admire the moon and in China enjoy moon-cakes. Spring Festivals The most energetic and important festivals are the ones that look forward to the end of winter and to the coming of spring. At the Spring Festival in China, people eat dumplings, fish and meat and may give children lucky money in red paper. There are dragon dances and carnivals, and families celebrate the Lunar New Year together. Some Western countries have very exciting carnivals, which take place forty days before Easter, usually in February. These carnivals might include parades, dancing in the streets day and night, loud music and colourful clothing of al kinds. Easter is an important religious and social festival for Christians around the world. It celebrates the return of Jesus from the dead and the coming of spring and new life. Japan’s Cherry Blossom Festival happens a little later. The country, covered with cherry tree flowers, looks as though it is covered with pink snow. People love to get together to eat, drink and have fun with each other. Festivals let us enjoy life, be proud of our customs and forget our work for a little while.
必修三 Unit1 festivals around the world 1.take place 发生（指按计划发生，相当于不及物动词，没有被动语态）； happen发生（指偶然地没有预见地发生，也是不及物动词，没有被动语态，） take the place of 代替 e.g. The 2012 Summer Olympics will take place in London. A funny thing happened in our class last Monday. I will take the place of him to finish the work. 2. in memory of…纪念；追念（介词短语） e.g. I send you this card in memory of our happy summer together. 3. lead…to…把……带向（引领到）…; lead to…导致 e.g. I will lead the blind man back home. Regular reviewing leads to better grades. 4. in the shape of…以/在……的形状 e.g. I dare eat the food in the shape of skulls. 5. belief 信任；信心；信仰。其复数为beliefs. 6. dress up 盛装；打扮；装饰。dress up as…打扮成…… e.g. We dressed up for the school party on Christmas Day. They tried to dress him up as a “national hero”. dress up, put on, wear, have on 的区别 1）dress意思是给自己或别人穿衣服。可单独用作不及物动词；作及物动词接宾语时要接表示人的名词、代词或反身代词。dressed可作表语，be dressed (in)表示“穿着”的状态。2）put on 表示“穿上、戴上”，是终止性短语，表动作，其宾语是衣服、鞋、帽、手套、袜子、眼镜等。 3）wear是“穿着、戴着”，除了接普通衣服外，还可指佩戴手表、首饰、徽章、花以及留发型、胡须等，含义最广。 4）have on表示静态“穿着、戴着”，多用于口语，是比较普通的用语，不用于进行时。 7. play a trick on…搞恶作剧；诈骗；开玩笑。还常用作play tricks on… e.g. He intends to play a trick on that girl. Don’s play tricks on me- I want to know the truth. 8. award n. 奖，奖品（可数）vt.授予；判定 e.g. He won the first awards of many English contests. The school awarded Mary a prize for her good work.学校因为玛丽的出色表现而奖励了她。medal, prize, reward和award用法辨析： medal指“奖章，勋章，纪念章”，如金牌、银牌等。 prize指“奖品，奖金；战利品；捕获物”，如在竞争或比赛中赢得的，或作为对胜利或优胜的嘉奖的东西 reward指“回报，报酬，报应”，为相应的行为作酬劳或为邪恶的举止作报应而授予或收到的东西。 award指“奖品”，因优点奖励或授予的东西。 e.g. How many gold medals has he won? My brother won the first prize in the contest. A large reward is offered for the capture of the criminals.
人教版高中英语必修三单词表Unit 1 take place 发生 beauty /'bju:ti/ n.美；美人 harvest /'hɑ:vist/ n. & vt. & vi.收获；收割 celebration /seli'brei?n/ n.庆祝；祝贺 hunter /'h?nt?/ n.狩猎者；猎人 starve /stɑ:v/ vi. & vt.（使）饿死；饿得要死 origin /'?rid?in/ n.起源；由来；起因 religious /ri'lid??s/ adj.宗教上的；信奉宗教的；虔诚的 △seasonal /'si:z?nl/ adj.季节的；季节性的 ancestor /'?nsest?/ n.祖先；祖宗 △Obon /?'b?n/ n. (日本)盂兰盆节 △grave /ɡreiv/ n.坟墓；墓地 △incense /'insens/ n.熏香；熏香的烟 in memory of 纪念；追念 Mexico /'meksik?u/ n. 墨西哥(拉丁美洲国家) feast /fi:st/ n.节日；盛宴 △skull /sk?l/ n.头脑；头骨 bone /b?un/ n.骨；骨头 △Halloween /h?l?u'i:n/ n.万圣节前夕；诸圣日前夕 belief /bi'li:f/ n.信任；信心；信仰 dress up 盛装；打扮；装饰 trick /trik/ n.诡计；恶作剧；窍门vt.欺骗；诈骗 play a trick on 搞恶作剧；诈骗；开玩笑 poet /'p?uit/ n.诗人 △Columbus Day哥伦布日 arrival /?'raivl/ n.到来；到达；到达者 △Christopher Columbus /'krist?f?k?'1?mb?s/ 克利斯托弗·哥伦布(意大利航海家) gain /ɡein/ vt.获得；得到 independence /indi'pend?ns/n.独立；自主 independent /indi'pend?nt/ adj.独立的；自主的 gather /'ɡ?e?/ vt. & vi. & n.搜集；集合；聚集 agriculture /'?ɡrik?lt??/n.农业；农艺；农学 agricultural /?ɡri'k?lt??r?l/ adj.农业的；农艺的 award /?'w?:d/ n.奖；奖品vt.授予；判定 △produce /'pr?dju:s/ n.产品；（尤指）农产品 rooster /'ru:st?/ n.雄禽；公鸡 admire /?d'mai?/ vt.赞美；钦佩；羡慕 energetic /en?'d?etik/ adj.充满活力的；精力充沛的；积极的 look forward to 期望；期待；盼望 △carnival /'ka:nivl/n. 狂欢节；(四句斋前的) 饮宴狂欢；嘉年华(会) △lunar /'lu:n?/ adj.月的；月亮的；阴历的 Easter /'i:st?/n. (耶稣)复活节 △parade /p?'reid/ n.游行；阅兵；检阅 day and night 日夜；昼夜；整天
人教版高中化学选修4综合测试题（四） 考试用时100分钟。满分为150分。 第Ⅰ卷（共70分） 一、 选择题（本题包括15小题，每小题2分，共30分。每小题只有一个选项符合题意） 1、已知反应X+Y= M+N 为放热反应,，对该反应的下列说法中正确的 （ ） A 、X 的能量一定高于M B 、Y 的能量一定高于N C 、X 和Y 的总能量一定高于M 和N 的总能量 D 、因该反应为放热反应,故不必加热就可发生 2、在pH=1的无色溶液中，下列离子能大量共存的是 （ ） A ．NH 4+、Ba 2+、NO 3—、CO 32— B ．Fe 2+、OH —、SO 42—、MnO 4— C ．K +、Mg 2+、NO 3－ 、SO 42— D ．Na +、Fe 3+、Cl —、AlO 2— 3、在密闭容器里，A 与B 反应生成C ，其反应速率分别用A v 、B v 、C v 表示，已知2B v =3A v 、3C v =2B v ，则此反应可表示为 （ ） A 、2A+3B=2C B 、A+3B=2C C 、3A+B=2C D 、A+B=C 4、下列说法正确的是 ( ) A 、可逆反应的特征是正反应速率和逆反应速率相等 B 、在其他条件不变时，使用催化剂只能改变反应速率，而不能改变化学平衡状态 C 、在其他条件不变时，升高温度可以使平衡向放热反应方向移动 D 、在其他条件不变时，增大压强一定会破坏气体反应的平衡状态 5、相同温度下等物质的量浓度的下列溶液中，pH 值最小的是 （ ） A ．Cl NH 4 B ．34HCO NH C ．44HSO NH D ．424SO )(NH 6、下列说法正确的是 （ ） A 、物质的溶解性为难溶，则该物质不溶于水 B 、不溶于水的物质溶解度为0 C 、绝对不溶解的物质是不存在的 D 、某离子被沉淀完全是指该离子在溶液中的浓度为0 7、化学电池可以直接将化学能转化为电能，化学电池的本质是 （ ） A ．化合价的升降 B ． 电子的转移 C ．氧化还原反应 D ．电能的储存 8、随着人们生活质量的不断提高，废电池必须集中处理的问题被提到议事日程，首要原因 是 （ ）
Unit 1 1、发生 2、美；美人 3、收获；收割 4、庆祝；祝贺 5、狩猎者；猎人 6、(使)饿死；饿得要死 7、起源；由来；起因 8、宗教上的;信奉宗教的;虔诚的 9、季节的；季节性的 10、祖先；祖宗 11、（日本）盂兰盆节 12、坟墓；墓地 13、熏香；熏香的烟 14、纪念；追念 15、墨西哥（拉丁美洲国家） 16、节日；盛宴 17、头脑；头骨 18、骨；骨头 19、万圣节前夕；诸圣日前夕 20、信任；信心；信仰 21、盛装；打扮；装饰 22、诡计;恶作剧;窍门欺骗；诈骗 23、搞恶作剧；诈骗；开玩笑 24、诗人 25、哥伦布日 26、到来；到达；到达者 27、克利斯朵夫·哥伦布 28、获得；得到 29、独立；自主 30、独立的；自主的 31、搜集；集合；聚集 32、农业；农艺；农学 33、农业的；农艺的 34、奖；奖品授予；判定 35、产品；（尤指）农产品 36、雄禽；公鸡 37、赞美；钦佩；羡慕 38、充满活力的;精力充沛的;积极的 39、期望；期待；盼望 40、狂欢节；（四旬斋前的）饮宴狂欢；嘉年华（会） 41、月的；月亮的；阴历的 42、 (耶稣)复活节 43、游行；阅兵；检阅 44、日夜；昼夜；整天 45、衣服
46、基督徒；信徒 基督教的；信基督教的 47、耶稣 48、樱桃；樱桃树 49、花开花 50、好像 51、玩得开心 52、习惯；风俗 53、遍及全世界的；世界性的 54、玫瑰花蕾 55、愚人；白痴；受骗者 干傻事；开玩笑傻的 56、必要性；需要 57、许可；允许 58、预言；预报；预告 59、样子；方式；时尚 60、特立尼达岛 61、卡拉（女名） 62、哈利（男名） 63、（汽车等）停放 64、停车场 65、圣瓦伦廷节；人节 66、出现；到场 67、守信用；履行诺言 68、屏息；屏气 69、道歉；辩白 70、淹没；溺死；淹死 71、悲哀，悲伤 72、明显的；显而易见的 73、擦；揩；擦去 74、（使）迂回 75、牧群；兽群 76、银河 77、喜鹊 78、哭泣;流泪哭；哭泣 79、广播员；告知者；报幕员 80、出发；动身；使爆炸 81、提醒；使想起 82、使……想起…… 83、原谅；恕 Unit 2 84、日常饮食节食 85、意大利式细面条 86、坚果；果仁 87、肌肉；（食用）瘦肉 88、给予保护的；保护的
1.必修三Unit1 Festivals and celebrations节日和庆典 Festivals and celebrations of all kinds have been held everywhere since ancient times. 自古以来，世界各地就有各种各样的节日和庆典。Most ancient festivals would celebrate the end of cold weather, planting in spring and harvest in autumn. 最古老的节日总是庆祝严寒的结束、春季的种植和秋天的收割。Sometimes celebrate would be held after hunters had caught animals. 有时，在猎人捕获猎物后，也举行庆祝活动。At that time people would starve if food was difficult to find, especially during the cold winter months. 在那个时代，如果食物难以找到，特别是在寒冷的冬月，人们会挨饿。Today’s festivals have many origins ,some religious, some seasonal, and some for special people or events. 现在的节日有很多由来，一些是宗教上的，一些是季节性的，一些是纪念特殊的人和事件的。 Festivals of the Dead亡灵节 Some festivals are held to honour the dead or to satisfy the ancestors, who might return either to help or to do harm. 有些节日，是为了纪念死者，或使祖先得到满足，因为祖先们有可能回到世上（给人们）提供帮助，也有可能带来危害。For the Japanese festival. Obon, people should go to clean graves and light incense in memory of their ancestors. 在日本的盂兰盆节，人们要扫墓、烧香，以缅怀祖先。They also light lamps and play music because they think that this will lead the ancestors back to earth. 他们还点起灯笼，奏响乐曲，因为他们认为这样做可以把祖先引回到世上。In Mexico, people celebrate the Day of the Dead in early November. 在墨西哥，亡灵节是在11月初。On this important feast day, people eat food in the shape of skulls and cakes with “bones” on them. 在这个重要的节日里，人们会吃制成颅骨形状的食物，和装点有“骨头”的蛋糕。They offer food, flowers and gifts to the dead. 他们向亡者祭献食物、鲜花和礼品。The Western holiday Halloween also had its origin in old beliefs about the return of the spirits of dead people. 西方节日万圣节也源自人们古老的信念，认为亡者的灵魂会返回人间。It is now a children’s festival, when they can dress up and to their neighbours’ homes to ask for sweets. 万圣节如今成了孩子们的节日，这天他们可以乔装打扮上到邻居家要糖吃。If the neighbours do not give any sweets, the children might play a trick on them. 如果邻居什么糖也不给，那么孩子们就可以捉弄他们了。 Festivals to Honour People纪念名人的节日 Festivals can also be held to honour famous people . 也有纪念名人的节日。The Dragon Boat Festival in China honours the famous ancient poet, Qu Y uan. 中国的端午节（龙舟节），是纪念著名古代诗人屈原的。In the USA Columbus Day is in memory of the arrival of Christopher Columbus in New World. 美国的哥伦布日是纪念克里斯托弗·哥伦布发现“新大陆”的日子。India has a national festival on October 2 to honour Mohandas Gandhi, the leader who helped gain India’s independence from Britain. 印度在10月2日有个全国性节日，纪念莫汉达斯·甘地，他是帮助印度脱离英国而独立的领袖。 Harvest Festivals庆丰收的节日 Harvest and Thanksgiving festivals can be very happy events. 收获与感恩节是非常喜庆的节日。People are grateful because their food is gathered for the winter and the agricultural work is over. 越冬的粮食收集起来了，农活结束了，人们都心怀感激。In European countries, people will usually decorate churches and town halls with flowers and fruit, and will get together to have meals. 在欧洲国家，人们通常用花果来装饰教堂和市政厅，在一起聚餐。Some people might win awards for their farm produce, like the biggest watermelon or the most handsome rooster. 有些人还可能因为他们的农产品（参加各种评选）而获奖，比如最大的西瓜或最帅的公鸡。China and Japan have mid-autumn festivals, when people admire the moon and in China, enjoy
第1，2课时1.1．1 任意角 教学目标 （一） 知识与技能目标 理解任意角的概念(包括正角、负角、零角) 与区间角的概念. （二） 过程与能力目标 会建立直角坐标系讨论任意角,能判断象限角,会书写终边相同角的集合；掌握区间角的集合的书写． （三） 情感与态度目标 1． 提高学生的推理能力； 2．培养学生应用意识． 教学重点：任意角概念的理解；区间角的集合的书写． 教学难点：终边相同角的集合的表示；区间角的集合的书写． 教学过程 一、引入： 1．回顾角的定义 ①角的第一种定义是有公共端点的两条射线组成的图形叫做角. ②角的第二种定义是角可以看成平面内一条射线绕着端点从一个位置旋转到另一个位置所形成的图形． 二、新课： 1．角的有关概念： ①角的定义： 角可以看成平面内一条射线绕着端点从一个位置旋转到另一个位置所形成的图形． ②角的名称： ③角的分类： ④注意： ⑴在不引起混淆的情况下，“角α ”或“∠α ”可以简化成“α ”； ⑵零角的终边与始边重合，如果α是零角α =0°； ⑶角的概念经过推广后，已包括正角、负角和零角． ⑤练习：请说出角α、β、γ各是多少度? 2．象限角的概念： ①定义：若将角顶点与原点重合，角的始边与x 轴的非负半轴重合，那么 正角：按逆时针方向旋转形成的角 零角：射线没有任何旋转形成的角 始 边 终 边 顶 点 A O B 负角：按顺时针方向旋转形成的角
角的终边(端点除外)在第几象限，我们就说这个角是第几象限角． 例1．如图⑴⑵中的角分别属于第几象限角？ 例2．在直角坐标系中，作出下列各角，并指出它们是第几象限的角． ⑴ 60°； ⑵ 120°； ⑶ 240°； ⑷ 300°； ⑸ 420°； ⑹ 480°； 答：分别为1、2、3、4、1、2象限角． 3．探究： 终边相同的角的表示： 所有与角α终边相同的角，连同α在内，可构成一个集合S ＝{β|β=α+k ·360°，k ∈Z}，即任一与角α终边相同的角，都可以表示成角α与整个周角的和． 注意： ⑴ k ∈Z ⑵ α是任一角； ⑶ 终边相同的角不一定相等，但相等的角终边一定相同．终边相同的角有无限个，它们相差 360°的整数倍； ⑷ 角α + k ·720 °与角α终边相同，但不能表示与角α终边相同的所有角． 例3．在0°到360°范围内，找出与下列各角终边相等的角，并判断它们是第几象限角． ⑴－120°；⑵640 °；⑶－950°12＇． 答：⑴240°,第三象限角；⑵280°,第四象限角；⑶129°48＇,第二象限角； 例4．写出终边在y 轴上的角的集合(用0°到360°的角表示) ． 解:{α | α = 90°+ n ·180°,n ∈Z}． 例5．写出终边在x y 上的角的集合S,并把S 中适合不等式－360°≤β＜720°的元素β写出来． 4．课堂小结 ①角的定义； ②角的分类： ⑵ B 1 y ⑴ O x 45° B 2 O x B 3 y 30° 60o