Unit 4  Global warming

21.a  根據(jù)上下文可知，此處意思為：如果我們只需坐在電腦前而無需輸入密碼就可以自動登錄該多好。a自動地；b個人的；c正確的；d偶爾的，臨時的。 22.b  由上文可知，因“用臉部識別技術(shù)來幫你登錄”了，所以“不需要用密碼”。 23.a  由上文可知此處所選詞的意思相當于上文中的log in(登錄)，故選a，存取(信息)，訪問。 24.b  由文章開頭第—句話可知密碼難記，同時根據(jù)本句中的并列詞confusing(令人糊涂的，混亂的)可知答案為b(復雜的)。 25.b  根據(jù)上文中提到的...uses face recognition technology...可知。 26.c  本句話的意思為通過使用一種叫做"facecode"的相對便宜的應(yīng)用程序，用戶就可以使用這種技術(shù)了。根據(jù)本句中available to customers可以判斷出此處強調(diào)的是價格。application在本句中為應(yīng)用程序,應(yīng)用軟件的意思。 27.d  根據(jù)上下文可知，此處所選的詞意思相當于上句話中的application，故選d，程序系統(tǒng)，軟件。 28.a  根據(jù)下句話中的they each have a windows account可以判斷出此處是指可以添加多個電腦用戶。 29.c  fail to ，在此表示 couldn’t 的詞義。 30.d  如果系統(tǒng)不能認出你的面孔，你還可以用熱鍵組合來取回你的用戶名和密碼。 2語法填空 語法填空（共10小題，每小題1.5分，滿分15分）閱讀下面短文，按照句子結(jié)構(gòu)的語法性和上下文連貫的要求，在空格處填入一個適當?shù)脑~或使用括號中詞語的正確形式填空，并將答案填寫在答題卡標號為31-40的相應(yīng)位置上。詞數(shù)：209完成時間：8分鐘難度：*dear sir       being completely deaf myself, i read your report of the poor conditions of the deaf and mute (啞)who were gathering in new york    31   (beg). i supposed that    32    could not happen here in australia.   33   , two years later, i was having dinner in a restaurant in sydney    34   a person entered and started handing out plastic jewellery (首飾) and a note to people at each table. the main idea of the note was, "i am unable to speak and    35    (hear) in a world of voices and music.   36   you kindly buy these things?" when he came to my table, i questioned him    37   sign language. he was a little surprised. then he said in a low voice "don't talk" (which i could read from his lip movement) and moved away.      please do not   38   ( take ) in by those people. please do not give them any money. they are   39   deaf nor representative (代表) of the deaf. they make use of people's pity, and   40   they are doing will do harm to all that has been achieved by the deaf in the last 20 years-including putting this practice to an end.                                                                                                 truly yours,                                                                    john williams 答案： 31.begging  32.it 33.however 34.when  35.hear  36.would 37.in 38.be taken 39.neither  40.what   31.begging，現(xiàn)在分詞作伴隨狀語。   32.it, 代詞，代替前文提到的聾啞人聚在一起乞討這回事。   33.however，表轉(zhuǎn)折，“然而，可是”。   34.when，考查be doing sth when.../be aboutto do sth.when….的結(jié)構(gòu)，表“正在/即將  去做……突然/就在那時……”。   35.hear，and連接兩個動詞不定式to speak和(to)hear。   36.would，would you please/kindly do sth? 表客氣婉轉(zhuǎn)的請求。   37.in，介詞，in sigh language "用手勢語”，表方式：   38.be taken，由該句中的by可知，此處考查動詞的被動語態(tài)。   39.neither, neither…nor…是固定結(jié)構(gòu)，表“既不……也不……；兩者都不……”   40.what，考查由what引導的主語從句。 3閱讀理解