【正文】 原因狀語；bite的過去分詞是bitten/bit。21．B解析：B【詳解】句意：貓被咬了兩次，除非狗不在，否則它不肯靠近桌子。20．A解析：A【解析】試題分析：句意：我喜歡觀看在街上走著的人。keep sb doing是習慣用法，表示“一直做某事”，故選B。19．B解析：B【解析】試題分析：句意為：很抱歉讓你等了一個小時。據(jù)Every morning 句子要用一般現(xiàn)在時態(tài)，watch...doing觀看……在做，據(jù)題意故選D?？键c：考查過去分詞。understood 和himself構(gòu)成被動的關(guān)系。17．B解析：B【解析】試題分析：句意:他盡力的讓學生明白他的意思，但是他失敗了。To collect 動詞不定式；Collecting 動名詞/現(xiàn)在分詞；Ccollect 動詞原形；Collected動詞過去式。不定式做狀語，表示目的；故選D16．A解析：A【詳解】句意：——為什么學生們需要每天閱讀？——為了收集寫作的信息。觀察句子，這里應(yīng)該是疑問詞加不定式“how to do sth”表示怎樣做什么，故選A。這確實幫助我養(yǎng)成了用水的好習慣。分析句子結(jié)構(gòu)可知what we can作do的賓語，后面應(yīng)為動詞不定式to prevent the school bus accident作目的狀語，結(jié)合選項，可知A選項符合題意，故答案選A?！@聽起來太棒了。故選C。devote one’s life to doingsth貢獻一生做某事，故第一空用to preventing。故選B?！獘寢專視?。本句聽到的不是正在進行的動作，需用hear him play the guitar；但本句and后面是被動語態(tài)，原來省略to的不定式需恢復(fù)to，即be heard to do；根據(jù)句意結(jié)構(gòu)和語境，可知選D。考查動詞形式辨析題。根據(jù)句意，木蘭女扮男裝代替父親去部隊的目的是打仗，不定時表示目的，故選A。本題考查動詞的時態(tài)。9．A解析：A【解析】句意：你認為功夫電影《木蘭》怎么樣？它來源于一個古老的中國故事。8．C解析：C【解析】句意：——商店里有這么多種Mp5，我們決定不了要買哪一個。（動詞不定式作狀語）7．C解析：C【詳解】句意：他們?yōu)閰⒓託g迎會準備了多少工作？考查動詞形式辨析題。如：Save energy, or it can run out soon. 這里有連詞連接，表示是句子與句子的關(guān)系，故用動詞原形，表示祈使句。【點睛】動詞不定式作目的狀語和祈使句在具體語境中的使用，很多學生在做題時容易弄混。A. Saving，表示伴隨狀態(tài)；B. Save，表示祈使；C. To save，表示目的；D. Saved，表示被動關(guān)系。故選A。拍攝更多節(jié)目的目的是引起人們對食品安全的關(guān)注，不定式表目的狀語。raise是及物動詞，后面可直接加賓語，可譯為：提起，舉起，豎起。5．A解析：A【詳解】句意：據(jù)政府官員聲稱，將制作更多的電視節(jié)目以引起人們對食品安全的關(guān)注。根據(jù)he loaded a new software to help ，因此用不定式作目的狀語?？疾椴欢ㄊ接梅??？疾楣潭ň湫虸t’s +形容詞+for sb. to do sth.：做某事對于某人來說是什么樣子的；live：居住，不及物動詞，住在某個地方是live in；故選B。故選C?？疾閟uch和非謂語動詞的用法。See sb. do sth.：看見某人經(jīng)常做某事或做過某事；see sb. doing sth.：看見某人正在做某事；根據(jù)時間When his name was called結(jié)合句意和語境可知選B。 to type D．writing。 typing B．to write。 work D．staying。 to work B．staying。 saving D．having。 to save B．to have。reads D．spends。read B．spend。 don39。 don39。 needn39。 needn39。 being seen D．managed。 seeing B．to manage。 wasting D．protect。 wasting B．protecting。 talking47．All of us should know what attention should be paid to __________ a more beautiful Huai39。 to speak C．enter。 Nothing40．The film Hello, Mom! is such a moving film that I think it is well worth________ .A．to watch B．watching C．watches D．watch41．The girl is so helpful that she devoted all her spare time she had ________ others.A．to helping B．helping C．to help D．helped42．Many students admitted ________ games once in a while when they took online courses.A．play B．played C．playing D．to play43．—Is there anything amazing in today’s newspaper?—Yes. By using ordinary puters, NASA scientists are busy________ at home to control a space rover(天體登陸車）on the Red Planet. .A．to programme B．programming C．programme D．with programming44．—Why are you so excited today?—Because we were told a school trip this weekend.A．having B．have C．to have D．had45．These young trees will require ________carefully.A．to look after B．being looked after C．having looked after D． looking after46．Seeing their teacher _______ into the classroom, they stopped _______ at once.A．walk。 None C．solving。t enjoy myself at the party. I just felt __ . — Well, maybe there were too many people at the party.A．left out B．to leave out C．leaving out D．be left out39．—How much difficulty did you have ________ this problem?—________. It’s quite easy.A．to solve。 mended D．to mend。 mending B．mending。 to live D．to preventing。 to live B．to prevent。 hear3．How do you feel after watching the movie Amazing, My Country?Well, I think it is lucky for us ____________ this great country.A．to live B．to live in C．living D．living in4．_______ colorful pictures, he loaded a new software to help him.A．Create B．Created C．To create D．Creating5．More TV programs, according to government officials, will be produced _____ people’s attention over food safety.A．to raise B．raising C．to rise D．rising6．energy，turn off the lights when you leave the room.A．Saving B．Save C．To save D．Saved7．How much work have they finished ________ for the wele party?A．prepared B．to prepare