課堂設計2015-2016學年高中英語 Unit4 Period3 Language Points學案 北師大版必修2

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1、 Period 3　Language Points 1．Compared to 20 years ago how do you think technology will change our life? ________________________________________________________________________ ________________________________________________________________________ ________________________________________

2、________________________________ 2．Do you feel pessimistic or optimistic about the future of the Internet? Why? ________________________________________________________________________ ________________________________________________________________________ _________________________________

3、_______________________________________ 1．In the last thirty years, the Internet has_grown rapidly. 三十年來，因特網迅猛地發(fā)展著。 [歸納] 時間狀語 in the last/past thirty years，通常與現(xiàn)在完成時連用。另外，recently, lately, so far，until now，up to now，by now, (ever) since等也是現(xiàn)在完成時的標志性時間狀語。 [運用] (1)Up to now, the program ________

4、 thousands of children who would otherwise have died. A．would save B．saves C．had saved D．has saved (2)Progress ________ so far very good and we are sure that the work will be finished on time. A．was B．had been C．has been D．will be (3)Her sister left home in 1998，and ______

5、__ since. A．had not been heard of B．has not been heard of C．had not heard of D．has not heard of 2．In the future, terrorists may “attack”the world’s computers, cause chaos, and make planes and trains crash. 將來，網絡恐怖分子可能會“攻擊”全世界的計算機，制造混亂，引發(fā)飛機和火車事故。 [歸納] attack vt. & n．攻擊，襲擊；抨擊，責難；(疾病)侵襲 attack

6、er n．襲擊者；攻擊者 attack sb.with sth.用某物襲擊某人 attack sb.for sth.因某事抨擊某人 carry out/make an attack on...對……發(fā)起攻擊 be/come under attack from...遭到……的攻擊，抨擊 [運用] (1)He was arrested for ________ his brother ________ a knife. 他因用刀攻擊他哥哥而被捕。 (2)Newspapers ________ the President ________ failing to cut taxes.

7、 報紙抨擊總統(tǒng)未能成功減稅。 (3)The government __________________ from all sides ______ cutting education spending. 政府因為削減教育開支而受到各方面的強烈批評。 3．Already, users can buy books, find out about holiday offers,_book tickets, and get all sorts of information from the Internet. 現(xiàn)在，用戶已經可以從網上購書，查找節(jié)日特惠，訂票，并可以從網上獲取各種各樣的信息。

8、 [歸納] offer vt.提出，提供；出價，開價；n.主動提議，建議(＋of sth./to do sth.)；出價，報價(＋for sth.)；(短期的)削價，特價 offer accept/take an offer接受提議，建議 turn down/decline/reject an offer拒絕提議 make sb.an offer for/on sth.向某人開……的價 [小貼士] offer后面不可接that從句，但可以引出直接引語。 “I’ll do the cooking，” he offered. 他主動提議：“我來做飯?！? [運用] (1)He

9、 __________ a better position. 他向我提供了一個更好的職位。 (2)Someone ____________ the bike. 有人向我出價300美元買這輛自行車。 (3)The kids ____________ the dishes. 孩子們主動要求洗盤子。 (4)—If you like I can do some shopping for you. —That’s a very kind ________. A．offer B．service C．point D．suggestion (5)The boy ______

10、__ his father’s offer of help, for he was trying to be independent. A．took B．accepted C．turned down D．turned away 4. Some experts see our future in virtual reality—the use of computers with sounds and pictures that make you feel as_if you are in a real situation. 有些專家看到了我們在虛擬現(xiàn)實中的未來——是計算機通

11、過聲音和圖像模擬現(xiàn)實，以使人感到仿佛置身于一個真實的空間。 [歸納] as if＝as though好像，仿佛 (1)在look, seem等系動詞后引導表語從句，還可引導方式狀語從句，從句常用虛擬語氣，表示與事實相反。當表示與現(xiàn)在事實相反的情況時，從句用一般過去時；當表示與過去事實相反的情況時，從句用過去完成時。 (2)用于省略句中，構成“as if ＋ 名詞/不定式/形容詞(短語)/介詞短語/分詞”結構。 [小貼士] 注意as if/though和even if/though的區(qū)別，后者表示“即使，盡管”，引導讓步狀語從句。 [運用] (1)The young man

12、 with long hair walks as if he ________ a girl. 留長發(fā)的那個小伙子走起路來就像個小姑娘。 (2)The injured man acted as if nothing __________. 那個受傷的男子行動起來仿佛什么事也沒有一樣。 (3)The man we followed suddenly stopped and looked as if ________ whether he was going in the right direction. A．seeing B．having seen C．to have s

13、een D．to see (4)________ you explained the reason to him, he would not believe you. A. Even if B. As if C. While D. As Period 3　Language Points 課前準備區(qū) 1．We have more cars and computers which are more and more popular.We can go shopping and book tickets online. We needn’t c

14、arry cash and use credit cards. Instead of going to the bank we can use a computer and a telephone to pay for bills. 2．I’m optimistic about the future of the Internet, because the Net has become a part of our life. We do many things on it, such as shopping, study, chat，etc.. 課堂活動區(qū) 1．(1)D　[本題考查時態(tài)。

15、up to now表示“直到現(xiàn)在”，句中謂語動詞一般用現(xiàn)在完成時。] (2)C　[本題考查時態(tài)。句意為：到目前為止，一切進展良好，我們確信這工作能夠按時完成。so far (＝by now)是現(xiàn)在完成時的標志性時間狀語，故C項正確。] (3)B　[句意為：他妹妹自1998年離家，自此杳無音信。since 此處是副詞，表示“從那以來”，通常與現(xiàn)在完成時連用。同時her sister與hear of是動賓關系，應用被動語態(tài)。故選B項。] 2．(1)attacking；with　(2)attacked；for (3)has come under attack；for 3．(1)offere

16、d me　(2)offered me $300 for (3)offered to do (4)A　[本題考查名詞辨析。對方主動提供幫助，應是offer。而service服務(一般是指有償服務)，不符合句意。] (5)C　[根據后一分句可知，這位小男孩盡量保持自立、自主的生活，所以他拒絕了父親主動提出的幫助。turn down 拒絕，符合題意。] 4. (1)were　(2)had happened (3)D　[考查as if引導的表語從句中的省略用法。此句中從句與主句的主語一致，從句中主語及動詞be可省略。句意為：我們跟蹤的那個男人突然停下來，看上去好像是在判斷是否走對了方向。他停下來的目的好像是為了辨別是否走對了方向，故用動詞不定式。再給合題意可知選D項。] (4)A　[句意為：即使你向他解釋了原因，他也不會相信你。even if即使，盡管，符合題意。] 3