山西省陽高縣高中英語Unit4Astronomy：thescienceofthestarsPeriod5UsingLanguage導(dǎo)學(xué)案（無答案）新人教版必修3

1、unit4 astronomy： the science of the starsperiod 5 using language學(xué)習目標：1. 培養(yǎng)快速查讀的能力；2。 體會科學(xué)探險之樂趣，引起學(xué)生對科學(xué)的熱愛之情；3. 了解構(gòu)詞法的基本知識；4。 掌握重點詞匯的的用法.學(xué)習重點：培養(yǎng)合作學(xué)習，自主學(xué)習的能力。學(xué)習難點:培養(yǎng)英語思維，快速獲取信息和用英語表達的能力。預(yù) 習 案i。 添加正確的前綴或后綴構(gòu)成新詞。v.n。direct permitimpressdigestprotectcooperatedirection_、_ 是名詞的后綴n。n。artphysicschemistrybiolo

2、gyscienceartist_是名詞的后綴n。adj。culturenationnatureoriginsocietyglobeuniverseagriculturemathematicscultural_是形容詞的后綴adj.n。presentviolentconfidentdifferentpatientpresence_是名詞的后綴adj.反義詞certainfairpaidlikekinduncertain_是形容詞表反義的前綴ii. 重點短語完形1cheer_高興起來;振作起來 _干杯2now_既然3。 _ out 爆發(fā)iii. 閱讀 a visit to the moon , 完

3、成下面短文。 last month i visited the moon with my friend。 before we left, i was told the force of g_ would change three times on our journey。 then we took off. as we left the earth, i became very h_. gradually the weight l_. when i was in space， it d_. we f_ weightlessly in the cabin and i c_ _. when i w

4、as on the moon, i was surprised to find out even walking needs lots of practice n_ _ gravity changed. the returning of the earth was very f_。 we were amazed to watch fire b_ _ on the outside of the ship. 探 究 案language points1. last month i was lucky enough to have a chance to make a trip into space

5、with my friend li yanping， an astronomer.上個月我有幸得到一個機會同我的朋友,一位宇航員李彥平一道去太空旅行.enough的用法：1)用作代詞：作主語或賓語。 you have done more than enough。 你已做得夠多了。 i have had enough. thank you。 我吃的已經(jīng)夠多的了，謝謝。2）形容詞作定語:enough用在名詞前、后都可以。 i have enough time to do the work. i have time enough to do the work。 我有足夠的時間做此項工作。3） 用作副

6、詞修飾形容詞或副詞表示程度： enough一般放在形容詞或副詞的后邊。 long enough， easy enough, fast enough, quickly enough等. the boy is old enough to go to school。 這孩子到上學(xué)的年齡了。 he couldnt run quickly enough to catch up with the cat。 他跑的速度太慢，追不上貓.4）用作副詞修飾動詞時也需放在動詞之后。 the meat is not cooked enough。 肉燉得不夠熟。2。 then we were off。 隨后我們就啟程了

7、。 be off 出發(fā)；動身（=set off）;休息，不上班 sorry， i must be off now。 抱歉，我得走了。 i am off today。 我今天不用上班。 we are off today。 今天我們不上班/今天我們不開張。 與off相關(guān)的短語: see.。off 送行 kick off 踢球 shut off 關(guān)閉 get off 下車 take off 脫下 turn off 關(guān)閉 pay off 付清;還清 jump off 跳下 give off 散發(fā) show off 炫耀3. 。 , we were pushed back into our seats

8、because we were trying to escape the pull of the earths gravity。 pull v. 拉，拖，拔;移動 n。 拉，拖；牽（引）力you push and i pull. 你來推，我來拉。 i felt a pull at my sleeve and turned round。我覺得有人扯我的袖子，便轉(zhuǎn)過身來。常用結(jié)構(gòu):pull in 進站?？浚傁蚵愤叄ɑ蚰程帲┩？縫ull out 離站，（時）擺脫困境pull on 匆忙穿上（衣服）,戴（手套），穿（襪子)pull off 匆忙脫(衣服、鞋等）pull through 恢復(fù)健康pul

9、l up 停車，停住pull down 拆毀即學(xué)即練：用適當?shù)慕椤⒏痹~填空the train pulled _?；疖嚨秸玖?。workers pulled _ the old building。工人們拆毀了舊房子.i helped my best friend pull _.我?guī)椭易詈玫呐笥讯蛇^了難關(guān).4. 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 earths。 當我們更接近月球時, 就會感到月球的引力在拉我們

10、。但是, 月球的引力不像地球的引力那么大。get close to 靠近，接近，指動態(tài)變化 be close to 距。近,指狀態(tài)the school is close to the post office.與get相關(guān)的短語:get along 相處融洽，進展等 get down to開始認真對待，開始認真考慮 get on 上車get through 到達；通過;辦完，花光（錢、時間等） get to 到達 get over 越過，克服即學(xué)即練：用get down to； get on； get through; get to; get over； get up 填空。1). dont t

11、alk too much。 lets _ working.2). hurry up, or well be late to _ the bus。3）. its easy to _ the difficulty。4）. i have _ a lot of papers.5). she managed to _ the village.5。 i cheered up immediately and floated weightlessly around in our spaceship cabin.。我立刻高興起來，由于失重我在太空艙里飄來飄去.。.cheer vt. vi。 （使)高興、振奮；（

12、對)歡呼the crowd cheered loudly as the queen appeared.女王出現(xiàn)時群眾高聲歡呼。he was greatly cheered by the news.他聽到這個消息非常高興.常用結(jié)構(gòu):cheer sb. on為某人加油cheer （sb。） up（使某人)更高興；（使）振奮起來聯(lián)想拓展：cheerful adj.高興的 cheerless adj。不高興的；陰冷的高手過招用cheer相關(guān)短語的適當形式填空your visit has greatly _ him up.the crowd the runners as they started the

13、 last lap.you look as though you need up。6。 but when i tried to step forward， i found i was carried twice as far as on the earth and fell over。 而當我試著向前邁步的時候，我發(fā)覺我被送出去很遠，步子的跨度竟是在地球上的兩倍，因而我摔倒了。方法規(guī)律倍數(shù)的表達方式 “av + 倍數(shù)as形容詞或副詞的原級asb”，表示“a是b的多少倍。 “av + 倍數(shù)形容詞或副詞的比較級thanb”，表示“a比b大(長、高、寬等）多少倍”。 “av + 倍數(shù)the size

14、/height/length/width/depth.。 ofb”，表示“a是b的多少倍”。 “av + 倍數(shù)what從句”this tree is three times as tall as that one. his father is twice as old as he.the yangtze river is almost twice longer than the pearl river。 長江差不多比珠江長兩倍。the number of students in our school is three times larger than that in theirs。 我們學(xué)校

15、的學(xué)生數(shù)量比他們學(xué)校的多三倍。the newly broadened square is four times the size of the previous one。 新擴建的廣場是未擴建時的四倍大。the newly.built museum is three times what it was .這座新建的博物館是原來的3倍大。即學(xué)即練：this table is twice bigger than that one。 this table is _that one. this table is _that one.這張桌子是那張的3倍大。 do you regret paying 1

16、00 dollars for the painting？ - no, i would gladly have paid _ （兩倍那么多了） for it。 7。 。. “walking does need a bit of practice now that gravity has changed.” 。.。既然引力改變了,走路也的確需要練一練了。 now that同since相似，語氣較弱，強調(diào)人們已知的事實。 “ 既然類詞辨析now that是固定短語，意為“既然；由于”，引出原因狀語從句，that可省略。because“因為”，表示直接的或為人所不知的原因。since“既然”，側(cè)重主句

17、。as“由于”,表示顯而易見或已為人所知的原因。for“因為”，并列連詞，引導(dǎo)的分句放在后，起補充說明作用.即學(xué)即練：用because，since/now that,as和for填空why arent you coming with us to the concert? _i have got a bad headache。_ all the seats were full he stood up。he shook his head， _ he thought differently._ your daughter hasnt come， let me take you home.8。 we

18、watched， amazed as fire broke out on the outside of the spaceship as the earths gravity increased。 我們驚奇地看著，隨著地球的引力增加，宇宙飛船的外層燃燒起來。（p31）1）break out （戰(zhàn)爭，火災(zāi)，疾病)突發(fā);爆發(fā)2）break out它與happen, take place， come out等詞的用法一樣，是不及物動詞，不能帶賓語，不能用于被動語態(tài)。the american civil war broke out in 1861. 美國內(nèi)戰(zhàn)爆發(fā)于1861年。a quarrel bro

19、ke out between them. 他們之間發(fā)生了爭吵.afirebrokeoutinhishouselastnight。昨晚他家里失火了.聯(lián)想拓展break away from 脫離(政黨等）；打破（陳規(guī)等）break down 出故障;（計劃等）失??；(身體、精神等）垮掉break in 破門而入，闖入；打斷（話語)等 break into 破門而入;突然起來 (后接賓語）break off 折斷；突然中止；斷絕；結(jié)束 break through 突破 break up 敲碎；放假；散會用適當?shù)慕?、副詞填空fighting broke _ between rival groups o

20、f fans.雙方球迷發(fā)生了打斗.the marriage between tiger woods and his wife broke _ on august 24th, 2010。泰格伍茲與妻子的婚姻于2010年8月24日破裂.the thieves must have had someone on the inside to help them break _.那伙盜賊一定有內(nèi)應(yīng)，協(xié)助他們闖了進去.my car broke _ on the half way。走到半路上我的車壞了.9. watch out （for） (p31） 留意；密切注意,留意；小心（某物）,提防必會watch o

21、ver 看守；監(jiān)視；照顧 watch out for 提防；注意be on the watch for 留神；注意 keep watch 值班；放哨keep （a) watch on.。監(jiān)視watch out for a man in a black hat.注意一個戴黑帽子的男人。the dog watches over his masters house while the master was away.主人不在時這條狗為它的主人看家.訓(xùn) 練 案i。 選用方框內(nèi)合適的詞或短語，并用其適當形式填空。(其中有一個多余選項)float; now that; mass; get the hang

22、 of; watch out; pull1. there was a _ of people around the club entrance。2。 you ought to have a good rest _ youve finished the work。 3。 she spent the afternoon _ on her back in the pool.4. it seems difficult at first, but youll soon _ it。5。 you have to _ because there are landmines all over the place

23、。ii 。 用適當?shù)慕樵~或副詞填空.1. come on. cheer _！ youre not the only one who failed in the test。2。 since there are many problems that cant be solved， the war is likely to break _.3。 last saturday, i went on a visit _ the great wall with some of my friends.4. is there anything else you would like me to explain

24、_ you?5。 water vapor is lighter， otherwise it would not rise _ the air。6. his grandfather lives in a lonely village which is far _ his house。7。 the leaves fall _ the trees and blow about in the autumn wind.8. as a matter of fact, i didnt know him _ all.9。 make sure that your children can not get clo

25、se _ pools， lakes and rivers by themselves.10。 he wants to give away all his modern possessions and return _ nature. 附collocations from a visit to the moonbe lucky enough（足夠幸運)， have a chance（有個機會）, make a trip（去旅行）， visit the moon（參觀月球)， in the spaceship（在太空飛船中), explain to that（向解釋）, on the journe

26、y（在旅程中）, be off（啟程）， rise into the air（升人太空）， feel the pull of the earth（感覺到地球的拉力), callgravity(稱為地球引力）, pushinto the seat(把推向座位), sayto each other(向彼此說）， fall back to（朝落下去)，fall from a tree（從樹上掉下來), fall to the ground（朝地上落下去）， get close to（接近)， feeling（感覺到正在）， cheer up(高興起來）, float weightlessly around（失重飄來飄去）, in the spaceship cabin（太空船艙)， watchdo（看著做），