日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

undertake . v. (pt. undertook pp. undertaken) 1) 承擔的責任 , 2)同意或答應做某事 查看更多

 

題目列表(包括答案和解析)

Don't ______ to spring-clean the whole house just because my mother is coming---there's no need to do that.

A.undertake         B.a(chǎn)ttempt           C.bother            D.hesitate

 

查看答案和解析>>

Sometime early in the next century, human beings will move to Mars. They will live there for about a year, and then will be replaced with another group of pioneers. Building the base on Mars will advance our knowledge of the solar system and aid in our understanding of the earth.

We already know that Mars resembles the earth in many aspects: general size, presence of water, length of day, range of temperatures. These resemblances have caused many people to consider a centuries-long project: to terraform Mars. Terraforming means altering a planet’s surface so that Earth’s life forms can survive there. This concept, previously found only in science fiction is now being seriously considered by scientists.

Terraforming Mars is theoretically simple: add nitrogen and oxygen to the atmosphere; pump water to the surface; and add the earth’s plants and animals in the order in which they developed on Earth. But it will take at least 300 years.

Some people think that such a project is too huge for humans to undertake, but there are very good reasons to make the attempt. The earth now contains some 6 billion people, and no one has any idea of how many humans the earth can support. Our very existence and numbers are threatening many other species. We also have had some experience with terraforming our own planet: altering the landscape, the atmosphere and the climate. Currently terraforming earth has become a wiser activity as we try to control global warming, air and water pollution, and preserve some natural living places.

While the possibility of such a project is small, it is not impossible .Even if earth –bound societies come and go in the next 300 years, the project can continue through the work of the Mars settlers without the need for constant backing from the earth.

 The future existence of all the people in our world may very well depend upon our ability to terraform Mars.

1.What would be the best title for this passage?

A.Terraforming Mars.               B.Saving the Earth

C.Travelling to Mars.                 D.A Newly-found Place

2.What does the underlined word “altering” mean in the second paragraph?

A.Warming.    B.Changing.    C.Planting.      D.Building

3.According to the passage the main purpose of terraforming Mars is to ________.

A.do some scientific research work

B.find out its similarity to earth

C.a(chǎn)void the dying away of many other species

D.find on Mars living place for the increasing human beings

4.The main reason for causing many people to consider terraforming Mars is that _______.

A.there are some resemblances between Earth and Mars.

B.terraforming Mars is theoretically simple

C.we have had some experience with terraforming our own planet: Earth

D.the development of science and technology is very rapid

5.What’s the author’s attitude towards the project?

A.Optimistic.  B.Negative

C.Sceptical(懷疑的)  D.Objective.

 

查看答案和解析>>

After successfully serving their term for 4 years, military service men and women are given the choice to stay in the military or return to civilian(平民)life.

For some, having to readjust to civilian life is one of the most challenging assignments our returning soldiers and marines(水兵)will ever have to undertake. While people may think readjusting should be simple, they must take into consideration all the physical and mental stress our servicemen went through.

Post-traumatic Stress Disorder(創(chuàng)傷后應急障礙), or PTSD, is a mental disorder that can occur following the experience or witnessing of life-threatening events such as military combat(打仗).

Most survivors of trauma return to normal given a little time. In the military, the marines are given a two-week course on how to return to civilian life.

Unfortunately, some will have stress reactions that do not go away on their own, or may even get worse over time. These individuals may develop PTSD.

People who suffer from PTSD have difficulty sleeping because they are often reliving the experience through nightmares(夢魘)and flashbacks, and feel deserted or often stand off, and these symptoms can be severe enough and last long enough to significantly damage the person’s daily life.

Fullerton College, like most colleges, has its own Veteran’s(老兵)Office. Ray Bustos has been running the office for 3 years. Bustos acts as a liaison(聯(lián)絡) for the school and the veteran students. He makes sure the veterans returning to school get the right benefits. There are various types of financial aid for soldiers and marines. He strongly encourages the use of the Veterans Affairs website.

The website is very informative and extremely helpful for veterans as well as for friends and relatives of veterans who want to learn more.

One purpose of the writer in writing the passage is ________________.

A. to introduce some methods to cure PTSD             

B. to instruct PTSD patients to return to civilian life

C. to recommend a website for veterans and people concerned

D. to give military service men and women advice on civilian life

What problems will some returning soldiers and marines meet with?

A. How to readjust to civilian life.                     B. How to get rid of mental diseases

C. How to get along with PTSD patients           D. How to return to school for benefits.

Which of the following is true about Ray Bustos?

A. He’s a veteran who has just come back from a military combat.

B. He runs Fullerton College with a veteran office.

C. He’s in charge of an office dealing with veteran affairs.

D. He provides a lot of financial aid for soldiers and marines.

The best title for the passage is __________.

A. PTSD: Killer of A Civilian Life.               B. The Last Assignment For All Military Persons

C. How to Overcome PTSD.                    D. Ready for a Civilian Life?

查看答案和解析>>

So long as teachers fail to distinguish between teaching and learning, they will continue to undertake to do for children that which only children can do for themselves. Teaching children to read is not passing reading on to them. It is certainly not endless hours spent in activities about reading. Douglas insists that“ reading cannot be taught directly and schools should stop trying to do the impossible”.

  Teaching and learning are two entirely different processes. They differ in kind and function. The function of teaching is to create the conditions and the climate that will make it possible for children to devise the most efficient system for teaching themselves to read. Teaching is also public activity. It can be seen and observed.

  Learning to read involves all that each individual does to make sense of the world of printed language. Almost all of it is private, for learning is an occupation of the mind, and that process is not open to public scrutiny.

  If teacher and learner roles are not interchangeable ,what then can be done through teaching that will aid the child in the quest(探索)for knowledge? Smith has one principal rule for all teaching instructions. “Make learning to read easy, which means making reading a meaningful, enjoyable and frequent experience for children. ”

  When the roles of teacher and learner are seen for what they are, and when both teacher and learner fulfill them appropriately, then much of the pressure and feeling of failure for both is eliminated. Learning to read is made easier when teachers create an environment where children are given the opportunity to solve the problem of leaning to read by reading.

he problem with the reading course as mentioned in the first paragraph is that _______________.

  A. it is one of the most difficult school courses

  B. students spend endless hours in reading

  C. reading tasks are assigned with little guidance

  D. too much time is spent in teaching about reading

.he teaching of reading will be successful if _______________.

  A. teachers can improve conditions at school for the students

  B. teachers can enable students to develop their own way of reading

  C. teachers can devise the most efficient system for reading

  D. teachers can make their teaching activities observable

The underlined word“ scrutiny” most probably means“______________”.

  A. inquiry            B. observation

  C. control            D. suspicion

According to the passage, learning to read will no longer be a difficult task when ______________.

  A. children become highly motivated

  B. teacher and learner roles are interchangeable

  C. teaching helps children in the search for knowledge

  D. reading enriches children’s experience

The main idea of the passage is that ______________.

  A. teachers should do as little as possible in helping students learn to read

  B. teachers should encourage students to read as widely as possible

  C. reading ability is something acquired rather than taught

D. reading is more complicated that generally believed

查看答案和解析>>

  So long as teachers fail to distinguish between teaching and learning , they will continue to undertake to do for children that which only children can do for themselves. Teaching children to read is not passing reading on to them. It is certainly not endless hours spent in activities about reading. Douglas insists that“ reading cannot be taught directly and schools should stop trying to do the impossible”.
  Teaching and learning are two entirely different processes. They differ in kind and function. The function of teaching is to create the conditions and the climate that will make it possible for children to devise the most efficient system for teaching themselves to read. Teaching is also public activity. It can be seen and observed.
  Learning to read involves all that each individual does to make sense of the world of printed language. Almost all of it is private ,for learning is an occupation of the mind ,and that process is not open to public scrutiny.
  If teacher and learner roles are not interchangeable ,what then can be done through teaching that will aid the child in the quest(探索)for knowledge? Smith has one principal rule for all teaching instructions. “Make learning to read easy, which means making reading a meaningful, enjoyable and frequent experience for children. ”
  When the roles of teacher and learner are seen for what they are, and when both teacher fulfil them appropriately, then much of the pressure and feeling of failure for both is eliminated. Learning to read is made easier when teachers create an environment where children are given the opportunity to solve the problem of leaning to read by reading.


  71.The problem with the reading course as mentioned in the first paragraph is that ________.
  A. it is one of the most difficult school courses
  B. students spend endless hours in reading
  C. reading tasks are assigned with little guidance
  D. too much time is spent in teaching about reading
  72.The teaching of reading will be successful if ________.
  A. teachers can improve conditions at school for the students
  B. teachers can enable students to develop their own way of reading
  C. teachers can devise the most effcient system for reading
  D. teachers can make their teaching activities observable
  73.The underlined word“ scrutiny” most probably means“________”.
  A. inquiry            B. observation
  C. control            D. suspicion
  74.According to the passage, learning to read will no longer be a difficult task when ________.
  A. children become highly motivated
  B. teacher and learner roles are interchangeable
  C. teaching helps children in the search for knowledge
  D. reading enriches children’s experience
  75.The main idea of the passage is that ________.
  A. teachers should do as little as possible in helping students learn to read
  B. teachers should encourage students to read as widely as possible
  C. reading ability is something acquired rather than taught
  D. reading is more complicated that generally believed

查看答案和解析>>


同步練習冊答案
天天综合日日夜夜精品| 亚洲一区二区人妻| 精品无码一区二区三区的天堂| 亚洲视屏在线观看| 内射后入在线观看一区| 国产在线观看免费网站| 一级片视频免费看| 天天影视色香欲综合网老头| ㊣最新国产の精品bt伙计久久| 色综合天天狠狠| 亚洲黄色av网站| 色综合久久悠悠| 97se在线视频| 欧美无砖专区免费| 亚洲图片欧美另类| 久久国产免费观看| 男人的天堂a在线| 麻豆传媒视频在线| 欧美日韩免费电影| 天天久久综合| 国产精品一品视频| 亚洲自拍另类综合| 欧美精品一区二区三| 欧美乱大交xxxxx另类电影| 成人在线视频网站| 久久精品在线免费视频| 人妻巨大乳一二三区| 欧美日韩偷拍视频| 天堂在线观看免费视频| 密臀av在线| 美女网站色精品尤物极品姐弟| 在线 亚洲欧美在线综合一区| 国产成人综合在线播放| 亚洲线精品一区二区三区八戒| 精品伦理精品一区| 69久久夜色精品国产69乱青草| 国产一级二级三级精品| 黄色国产精品视频| www中文在线| 亚洲AV无码精品色毛片浪潮| 女人黄色免费在线观看| 婷婷亚洲精品| 另类的小说在线视频另类成人小视频在线| 中文天堂在线一区| 日韩欧美激情四射| 国产成人精品av| 久久av秘一区二区三区| 亚洲高清无码久久| 中文av免费观看| 777电影在线观看| 北条麻妃一区二区三区在线| 日韩精品电影一区二区三区| 扒开伸进免费视频| www.日韩一区| 天堂а√在线官网| 欧美电影免费网站| 狠狠色丁香久久婷婷综| 疯狂做受xxxx欧美肥白少妇| 色久欧美在线视频观看| 国产精品一码二码三码在线| 亚洲激情在线观看视频| 精品在线免费观看视频| 欧洲一区av| 精品午夜视频| 久久精品国产一区二区| 日韩欧美国产中文字幕| 欧美激情免费观看| 咪咪色在线视频| 亚洲熟妇一区二区三区| 免费av一级片| 欧美成人aaa| 摸摸摸bbb毛毛毛片| 四虎永久免费影院| 亚洲精品国偷拍自产在线观看蜜桃| 96av在线| 影音先锋久久资源网| 亚洲久本草在线中文字幕| 中文字幕久精品免费视频| 久久99热只有频精品91密拍| 国产欧美视频一区| 国产成人精品一区二三区四区五区| 超碰91在线观看| 黑人一区二区三区四区五区| 亚洲欧美日韩久久精品| 日韩中文字在线| 色噜噜狠狠色综合网| 国产全是老熟女太爽了| 亚洲日本在线播放| 日韩中文字幕无砖| 成人一级视频在线观看| 日韩精品中文字幕一区二区三区 | 久久亚洲精品一区| 中文字幕不卡每日更新1区2区| 欧美亚洲色综久久精品国产| 午夜影院在线免费观看| 五月激激激综合网色播| 久久精品一区二区三区不卡牛牛| 亚洲视频在线观看网站| 神马影院午夜我不卡影院| 少妇愉情理伦三级| 成人高清免费在线播放| 91成人精品| 亚洲高清在线视频| 国产99在线|中文| 17c国产在线| www.桃色av嫩草.com| 日韩精品一区国产| 99re热这里只有精品视频| 亚洲色在线视频| 麻豆中文字幕在线观看| 国产精品第一页在线观看| 人人澡人人添人人爽一区二区| 一区三区视频| 欧美色偷偷大香| 国产高清精品一区二区三区| 国产成人精品无码片区在线| 天天av综合网| 欧美精品一卡| 在线视频一区二区三| 99久久99久久精品国产片| 熟女高潮一区二区三区| 午夜伦理在线| 色婷婷激情视频| 日本三级片在线观看| 蜜桃视频m3u8在线观看| 精品一区二区三区影院在线午夜| 精品99一区二区| 一道精品一区二区三区 | 亚洲免费成人| 51久久夜色精品国产麻豆| 精品视频免费观看| 超碰手机在线观看| 欧美调教sm| 国产99久久精品| 久久精品国产欧美亚洲人人爽| 欧美日韩成人免费视频| 国产视频第二页| 欧美自拍一区| 亚洲五码中文字幕| 亚洲综合视频1区| 非洲一级黄色片| 色av手机在线| 国产成人精品免费一区二区| 色综合影院在线| 青青在线免费观看视频| а√天堂www在线а√天堂视频| 久久伦理在线| 在线播放91灌醉迷j高跟美女 | 久久精品国内一区二区三区水蜜桃 | 国产aa精品| 中文字幕色av一区二区三区| 国产精品wwwwww| www.日本高清视频| 亚洲黄色网址| 久久久亚洲精品一区二区三区| 欧美激情一区二区三区成人| 日本成人在线免费| 快射av在线播放一区| 精品系列免费在线观看| 久久国产精品免费视频| 95视频在线观看| 成人在线观看免费网站| 国产乱子伦视频一区二区三区| 久久精品国产亚洲7777| 青娱乐国产精品视频| 暖暖日本在线观看| 国产在线精品免费| 欧美激情一区二区久久久| 日本少妇xxxx| 黄色软件视频在线观看| 久久网这里都是精品| 国产精品h片在线播放| 黄色激情小视频| 色成人免费网站| ...中文天堂在线一区| 91亚色免费| 亚洲欧美自拍视频| 免费一区二区| 欧美一区二区三区视频在线| 97干在线视频| 日韩a在线观看| 麻豆成人综合网| 欧美极品少妇xxxxx| 欧美激情aaa| 欧美色网在线| 一区二区三区.www| 欧美成ee人免费视频| 在线免费观看一级片| 久久网站免费观看| 日韩精品www| 韩国一区二区在线播放| heyzo一区| 国产精品的网站| 麻豆av一区二区三区| 亚洲天堂avav| 亚洲麻豆视频| 萌白酱国产一区二区| 美女脱光内衣内裤| 在线观看欧美| 91国内精品野花午夜精品| 17c丨国产丨精品视频| 视频二区在线| 99在线热播精品免费| 91久久国产综合久久91精品网站| 五月婷婷开心网| 999久久久免费精品国产| 日韩av在线直播| 精品国产aⅴ一区二区三区东京热| 亚洲国产一区二区在线观看| 亚洲欧美综合| 欧美a∨亚洲欧美亚洲| 国内精品伊人久久| 国产一区二区在线观看视频| 黄色网址在线播放| 国产人妻777人伦精品hd| 欧美精品videosex牲欧美| 青草全福视在线| 在线观看一级片| 国产馆精品极品| 国产精品永久在线| 在线免费观看av网址| 久久美女视频| 中文字幕亚洲二区| 一区二区三区久久久久| 中文字幕区一区二区三| 在线观看日韩国产| 成人免费视频久久| 肉肉视频在线观看| 一区二区三区精品在线观看| 天天成人综合网| 国产在线资源| 国产精品情趣视频| 亚洲精品一区二区三| 色久视频在线播放| 国产亚洲欧洲997久久综合| 免费影院在线观看一区| 夜色资源站国产www在线视频| 成人av高清在线| 国内视频一区| 一级香蕉视频在线观看| 91一区二区三区在线播放| 久久国产手机看片| 三上悠亚在线免费观看| 97久久精品人人澡人人爽| 久久精品aaaaaa毛片| 在线观看理论片| 国产亚洲精品福利| 一区二区三区欧美成人| 国产h在线观看| 综合网在线视频| 久久这里只有精品8| 蜜乳av一区| 色综合夜色一区| 97超碰人人爽| 精品国模一区二区三区欧美| 欧美成人精品高清在线播放| 你懂的在线观看网站| 粉嫩一区二区三区四区公司1| 国产偷国产偷亚洲清高网站| 殴美一级黄色片| 五月激情综合| 欧美在线视频免费播放| 一级黄色免费片| 国产伦精品一区二区三区在线观看 | 国产精品久久久网站| 亚洲欧美日韩区| 91九色丨porny丨极品女神| 久久精品青草| 欧美在线观看网址综合| 99热这里只有精品在线| 成人高清视频在线| 一区二区三区免费看| 日本不卡影院| 欧美日韩国产一二三| 香蕉视频黄色在线观看| 精品国产一级毛片| 午夜精品在线观看| 国产乱码一区二区| av一区二区三区四区| 51xx午夜影福利| av中文字幕在线观看第一页| 欧美日韩精品一区视频| 中文字幕 自拍| 亚洲电影在线一区二区三区| 日韩免费不卡av| 狠狠躁夜夜躁av无码中文幕| 国产日韩精品一区二区三区 | 91在线成人| 日韩风俗一区 二区| 九九热精品免费视频| 日韩和欧美一区二区三区| 久久96国产精品久久99软件| 嫩草在线视频| 欧美日韩在线免费视频| 男人操女人动态图| 亚洲性人人天天夜夜摸| www 成人av com| 免费黄色在线| 777久久久精品| 中文字幕求饶的少妇| 亚洲精选成人| 国产一区二区黄色| 中国av在线播放| 日韩精品一区二区三区蜜臀| 黄色a级片在线观看| 三级在线观看一区二区| 日韩福利影院| 成人性生活视频| 国产一区二区三区四区福利| 精品人妻一区二区三区潮喷在线 | 欧美三级视频在线观看| 日本欧美一区二区三区不卡视频| 一道本一区二区| 精品日韩电影| 一二三四视频在线中文| 亚洲美女免费精品视频在线观看| 国产又大又黄又粗| www久久精品| 国产喷水theporn| 久久国产精品亚洲人一区二区三区 | 擼擼色在线看观看免费| 亚洲视频在线观看| 国产精品区在线观看| 亚洲日穴在线视频| 天天躁日日躁狠狠躁av麻豆男男 | 91香蕉视频黄| 老熟妇仑乱视频一区二区| 欧美三级电影在线| 国产精品久久久久99| 91在线看片| 精品国产成人系列| 欧美一区二区三区网站| 欧美激情中文字幕| 中文字幕永久免费| 99成人精品| 在线观看一区二区三区三州 | 裸体一区二区三区| 日韩五码在线观看| 国产一区国产二区国产三区| 91色视频在线观看| 91在线三级| 久久精品免费播放| 黄页网站在线观看| 欧美精品在线观看一区二区| 国产一卡二卡在线播放| 久久亚洲捆绑美女| 欧美熟妇精品一区二区 | 精品久久久久久中文字幕动漫| 精品三级久久| 欧美大胆在线视频| 久久久久久久影视| 亚洲国产精品久久久久秋霞蜜臀| 亚洲性猛交富婆| 亚洲综合av网| 极品久久久久久| 久久久亚洲高清| 国产白嫩美女无套久久| 青青青伊人色综合久久| 欧美在线观看成人| 午夜欧美在线| 在线观看国产一区| 丝袜av一区| 免费电影一区| 91精品久久久久久综合五月天| 国产欧美精品一区二区三区介绍| 波多野结衣在线高清| 久久久极品av| 都市激情一区| 在线观看欧美日韩国产| 天天影院图片亚洲| 亚洲国产一区二区三区在线观看| 国产富婆一级全黄大片| 欧美在线观看一区| 性高潮视频在线观看| 午夜精品一区二区三区电影天堂| 欧美人妻精品一区二区三区| 中文字幕在线一区免费| 国产免费嫩草影院| 国产喂奶挤奶一区二区三区| 波多野结衣福利| 成人国产精品免费| 中文字幕一区二区三区人妻| 国产成人午夜精品影院观看视频 | 国产精品中文字幕久久久| 欧美日韩123区| 国产精品女人网站| 中文字幕av一区二区三区佐山爱| 欧美在线观看视频| 天堂av在线| 国产精品美女无圣光视频| 欧美成人黑人| 91免费精品视频| 欧美黄视频在线观看| 国产视色精品亚洲一区二区| 超碰成人福利| 日韩精品伦理第一区| 欧美精品一区二区三区中文字幕| 亚洲欧美电影在线观看| 国产精品毛片一区二区在线看| 国产一级大片免费看|