1、Unit2Extended reading2 language pointsBy Yangliu词汇点击词汇点击1.1. We long to visit thick and wild forests, climb vast mountain ranges, and cross deep oceans.(page 25)我们渴望探索茂密的原始森林，攀登连绵起伏的山脉，跨越深我们渴望探索茂密的原始森林，攀登连绵起伏的山脉，跨越深邃的海洋邃的海洋 long vi.渴望渴望 long for sb/sth 渴望见到某人渴望见到某人/ /得到某物得到某物long for sb to do sth 渴望
2、某人做某事渴望某人做某事 long to do sth 渴望做某事渴望做某事 Lucy had always _ a brother.露西以前一直渴望有个弟弟露西以前一直渴望有个弟弟 He _ Pat to phone.他一直在期待着帕特来电话。他一直在期待着帕特来电话。 Im _ see you again.我渴望再次见到你。我渴望再次见到你。longed forlonging tois longing for2.This should be a strong motive for continuing to explore space.(page 26)这就应该是持续探索太空的强大动机了。
3、这就应该是持续探索太空的强大动机了。 motive n.动机，原因，目的动机，原因，目的There seemed to be _ for his action.他的行为看不他的行为看不出有什么动机。出有什么动机。【归纳拓展】【归纳拓展】motivate vt.成为成为的动机，是的动机，是的原因的原因Learning should be _ by interest.学习应该是因为兴趣。学习应该是因为兴趣。 motivation n.动力，诱因动力，诱因What is the _ behind this sudden change?这个突然的转变背后的动机是什么这个突然的转变背后的动机是什么?no
4、 motivemotivatedmotivation3. It has been calculated that the global space economy is increasing by billions of dollars every year.(page 26)据估算，全球太空经济每年增长数十亿。据估算，全球太空经济每年增长数十亿。calculate vt.计算，核算计算，核算 It is/was calculated that 据估算据估算Tom used the _ on his smartphone to calculate the volumes of the cont
5、ainers. 汤姆用手机里的计算器计算这些容器的容积。汤姆用手机里的计算器计算这些容器的容积。【归纳拓展】【归纳拓展】 calculate vt. 预测，推测预测，推测People _ that many jobs will disappear due to the development of Al.人们预测，因为人工智能的发展，许多工作会消失。人们预测，因为人工智能的发展，许多工作会消失。calculation n.计算计算;预测预测By my _, I spent 500 dollars on daily expense last month.我算了一下，上个月我的日常开销是我算了一下
6、，上个月我的日常开销是500美元。美元。caculatorcaculationcalculate4.We should find permanent shelter that offers long-term protection from radiation.(page 27)我们应该找到长期防辐射的永久居所。我们应该找到长期防辐射的永久居所。 shelter n.居所，住处居所，住处Food, clothing and _ are essential in peoples lives.食物、衣物和住所是人们生活中必不可少的。食物、衣物和住所是人们生活中必不可少的。【归纳拓展】【归纳拓展】s
7、helter n.遮蔽，庇护遮蔽，庇护;遮蔽物遮蔽物;收容所，庇护所收容所，庇护所They rushed to the shop to take _ from the rain.他们跑到商店里避雨。他们跑到商店里避雨。 The organization provided _ for homeless people in the earthquake.该机构为地震中无家可归的人提供庇护所。该机构为地震中无家可归的人提供庇护所。shelter vt.&vi保护，掩蔽保护，掩蔽;躲避躲避(风雨或危险风雨或危险)shelter. from. 保护保护免受免受 Umbrellas _ people _
8、the rain.雨伞为人们遮雨。雨伞为人们遮雨。sheltershelterssheltershelterfrom5.It would protect us against radiation and keep inner atmospheric pressure constant as well. (page 27) 它将保护我们不受辐射的危害，同时保持内部气压恒定。它将保护我们不受辐射的危害，同时保持内部气压恒定。(1)atmospheric adj.大气的，大气层的大气的，大气层的(atmosphere的形容词形式的形容词形式) atmospheric pressure/conditi
9、ons/pollution 大气压力大气压力/状况状况/污染污染People are more and more concerned about the _ conditions.人们越来越担心大气状况。人们越来越担心大气状况。(2)constant adj.不变的，恒定的不变的，恒定的The temperature in the room is _.这个房间里的温度是恒定的。这个房间里的温度是恒定的。【归纳拓展】【归纳拓展】 constant adj. 连续发生的，不断的，重复的连续发生的，不断的，重复的The news on the website is in _ update. 网站上的
10、新闻不断更新。网站上的新闻不断更新。constant n.常数，常量常数，常量_ and variables have been determined by the researchers. 研究人员确定了常量和变量。研究人员确定了常量和变量。atmosphericconstantconstantConstants句型精析句型精析Radiation levels on the surface of Mars are two and a half times higher than those on the International Space Station.(page 27)火星表面的辐射
11、比国际空间站上的辐射高火星表面的辐射比国际空间站上的辐射高2.5倍。倍。【解析】该句使用了表示倍数的结构【解析】该句使用了表示倍数的结构:A+be+倍数倍数+adj./adv.比较级比较级+than+B，表示，表示“A比比B大大(长、高、宽等长、高、宽等)倍倍”。值得注意的是，。值得注意的是，这个结构也可以表示这个结构也可以表示“A的的是是B的的倍倍”。_.这根绳子比那根绳子长两倍这根绳子比那根绳子长两倍/这根绳子的长度是那根绳子的三倍。这根绳子的长度是那根绳子的三倍。 This rope is twice longer than that one.【拓展】【拓展】 其他常见的用来表示倍数的结
12、构有其他常见的用来表示倍数的结构有: A+be+倍数倍数+as+adj./adv.+as+B.表示表示“A的的是是B的的倍倍”。Asia _ Europe.亚洲的面积是欧洲的四倍。亚洲的面积是欧洲的四倍。 A+be+倍数倍数+the+n.+of+B，表示，表示“A的的是的是的倍倍”。常见的名词有。常见的名词有size、height、length、breadth 等。等。This street _. 这条街是那条街的四倍长。这条街是那条街的四倍长。 the + n.+ of A+ be +倍数倍数+adj./adv. 比较级比较级+than that of+B，表示，表示“A的的是是B的的倍倍”
13、。The size of this school _. 这个学校是我们学校的四倍大。这个学校是我们学校的四倍大。is four times as large asis four times the length of that one.is three times larger than that of our school. 根据根据Extended reading Extended reading 课文内容完成下面表格课文内容完成下面表格Why we exploreReason 1: It is in our_ to explore Being curious about the_ fro
14、m the very early days of human life on the Earth Remaining curious about the mysteries of the universe while space exploration is a_Reason 2: It_to our understanding of the universe. Addressing _questions about our place in the universe and the history of our solar system Seeking one day to answer t
15、he question whether there islife on otherplanetsReason 3: It helps solve some bigproblems for mankind, making our lives better. Shock absorbersLiquid _Reason 4: It brings great_value, and attracts young people to careers inspace industry. The value of global space economy increasing every year Jobs
16、in the space industry:astronauts, and many_ roles such as mechanics Reason 5:It provides education and_for the next generation.Shaping childrens lives and motivating them to become the scientists and engineers of the future Keeping_for knowledge alive contributesrealityeconomicfundmentalthirstinspir
17、ationsupportinghydrogenunknownnature根据教材根据教材 Project 课文内容，在空白处填入课文内容，在空白处填入1个适当的单词或括号内单词的正确形式个适当的单词或括号内单词的正确形式 To settle on Mars is not easy. Radiation is the biggest problem(1)_we have to solve. Radiation levels on the surface of Mars are over two times(2)_ (high ) than those we experience on the I
18、nternational Space Station. Due to high levels of(3)_(radiation), astronauts may be exposed to greater risks of cancer (4)_ other diseases. Dust storms are common all the year and cover the entire planet for weeks, blocking sunlight from(5)_( reach ) the surface. More(6)_( important ), these storms,
19、 which are made up of fine dust (7)_(catch ) in the atmosphere, can affect energy production for long periods. We should find permanent shelter that(8)_( offer ) long-term protection from radiation. We could build a special structure near the Red Planets freezing north pole.It would protect us (9)_
20、radiation and keep inner atmospheric pressure constant as well. The north pole is bathed in sunlight continuously for nearly 300(10)_( day ), so we could take advantage of the solar energy in that region.daysagainst/fromofferscaughtimportantlyreachingand/orradiationhigherthat用括号中所给单词的适当形式完成下列句子motiv
21、e give a description of be bathed in make contributions to frequent block . from rocket be exposed tobe set in cover make sense of be fascinated byapply to in the near future it is likely that origin 1. We hope we can decrease the _ of road accidents.2. With the economy_forward, the country has had
22、a boom year.3.The media _of the event has a positive influence on the whole society.4. The results have made major contributions to an understanding of the _ of the universe.5. Greater insight comes with each space mission, thus_us to continue along the same path of adventure.6.The fields_ beautiful
23、 sunlight.motivatingrocketingcoverageoriginfrequencywere/are bathed inmotive give a description of be bathed in make contributions to frequent block . from rocket be exposed tobe set in cover make sense of be fascinated byapply to in the near future it is likely that origin 7.A good view of the city
24、_ our eyes when we arrived at the top of the hill. 8. A huge tree fell down on the road, _the vehicles _ going.9.He_ what he had seen.10.The novel_ Paris in the 18th century. 11. They are determined to _ the public safety. 12. We hope youll come back again _.13.Youll_ what there is on display.14.Can you _what she says?15. The money _ the payment of debts. 16._ the cost will be greater than we think. blockingwas exposed toIt is likely thatwas/has been applied tomake sense ofbe fascinated byin the near futuremake contributions tois set in gave a description offrom
