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大學英語從句學習知識
要想學好大學英語，關(guān)于從句的知識肯定少不了，下面整理了一些關(guān)于大學英語從句的學習知識，歡迎大家閱讀!
定語從句【放在被修飾的名詞后來修飾】：
1.由關(guān)系代詞引起的定語從句
關(guān)系代詞who引起賓語從句
在公益組織工作的人士為了幫助別人。
People who work for charitable organizations usually do so because they want to help people in need.
解釋：People【主語】 who work for charitable organizations【定語從句修飾先行詞people：who定語從句的關(guān)系詞代替人“people”做主語，work for...(為......工作)謂語，charitable organizations賓語】 usually【狀語：副詞做狀語】 do【謂語】 so【賓語：so代詞做賓語】because they want to help people in need【because引導原因狀語從句：they主語，want謂語， to help動詞不定式做賓語，people做help的賓語，in need介詞短語做后置定語修飾people】.
那些受過高等教育的人會有更多機會。
Those who receive higher education have more opportunities.
解釋：Those【those“那些”，代替的是人做主語】 who receive higher education【who引導定語從句，這定語從句的關(guān)系詞只能用who不能用that，因為those是代詞，所以只能用who;receive謂語， higher education賓語】have【謂語】 more opportunities【賓語】.
關(guān)系詞that/which
可以代替“事物”，做賓語的時候可以省略，但做主語的時候不能省略
動物實驗室野蠻的做法，剝奪了動物的生命權(quán)。
Animal testing is a babaric practice that deprives animals of the right of subsistence.
解釋：Animal testing【主語】 is【謂語：系動詞(is，am，are，was，were，become，feel，sound，smell，taste，turn)，系動詞跟的是形容詞或名詞作表語】 a babaric practice【表語：babaric形容詞做前置定語修飾practice】 that deprives animals of the right of subsistence【關(guān)系詞引導定語從句做主語，that做主語的時候不能省略，that代替practice主語，由于practice是單數(shù)，那么謂語動詞就加s/es，deprives謂語;animals of the right of subsistence賓語，第二個of是后置定語修飾right，第一個of也是后置定語修飾animals】 .
人口過多和淡水短缺是當今人們面臨的兩個棘手問題。
Overpopulation and fresh water shortage are two thorny problems that people are confronted with today.
解釋：Overpopulation and fresh water shortage【主語】 are【謂語：系動詞】 two thorny problems【表語】 that people are confronted with【定語從句，關(guān)系詞that做的是賓語，因為后面已經(jīng)有主謂了，所以that就是賓語，關(guān)系做賓語時可以省略;people 主語，are confronted with謂語，那么這個的賓語就已經(jīng)提前了，那就是two thorny problems】 today【時間狀語】.
關(guān)系詞whose代表“某個人的”在定語從句中做定語
由于遺傳造成的肥胖需要去看醫(yī)生。
Those who obesity is gene-related should consult doctors.
解釋：Those【主語】 whose obesity is gene-related【定語從句：whose obesity主語，由于在定語從句中，obesity名詞作主語了，那么就用形容詞來修飾名詞，用whose來修飾obesity，所以whose obesity做主語，謂語is(系動詞)，表語gene-related(形容詞)】 should consult【謂語，should情態(tài)動詞(情態(tài)動詞：can，could，may，might，will，would，shall，should，must，need)，情態(tài)動詞單獨不能成立，要成立的話必須加動詞原形做謂語】 doctors【賓語】.
2.有關(guān)系副詞引起的定語從句
When【修飾時間】，where【修飾地點或領域】，why【修飾原因】
我支持建一坐現(xiàn)代體育館的理由是，體育課對學生的健康是非常重要的。
One reason why I support the building of a modern gym is that physical education class is very important to the well-being of students.
解釋：One reason【主語】 why I support the building of a modern gym【定語從句：why代替“原因”，I主語，support謂語，the building of a modern gym賓語(介詞of引導的后置定語of a modern gym后置定語修飾building)】is 【謂語：系動詞】that physical education class is very important to the well-being of students【由that引導表語從句： physical education class主語，is 謂語，very important表語(very副詞做狀語修飾形容詞important);介詞to引導狀語，所以to the well-being of students狀語(of介詞引導of students做后置定語修飾well-being】.
博物館是游客們體驗當?shù)匚幕土私鈿v史的好地方。
A museum is a good place where tourists can appreciate the local culture and better understand the local history.
解釋A museum【主語】 is 【謂語】a good place【表語】 where tourists can appreciate the local culture and better understand the local history【由where(代替地點)引導的定語從句，tourists主語，can appreciate 謂語，the local culture賓語;and并列連詞，那就是把can appreciate the local culture 和better understand the local history并列，那么understand是并列謂語，better狀語修飾謂語understand，the local history賓語】.
我盼望著有一天能在你飯店美餐一頓。
I look forward to a day when we can enjoy a delicious meal at your restaurant.
解釋：I 【主語】look forward to【謂語】 a day【賓語】 when we can enjoy a delicious meal at your restaurant【由where引導的定語從句，代替時間day，we主語，can enjoy謂語， a delicious meal 賓語(其中，delicious是前置定語修飾meal)，at your restaurant狀語(介詞短語at引導的做狀語)】.
非限定性定語從句which“這”
結(jié)果，這也導致人們面對面接觸的機會越來越少，從而使人們之間的關(guān)系越來越淡漠。
This，as a result，has made direct face-to-face human contact less and less necessary，which has led to human relationships become more confusing.
解釋：This【主語】，as a result【介詞引導做狀語】，has made【現(xiàn)在完成時have/has+過去分詞，做謂語】 direct face-to-face human contact【賓語】 less and less necessary【補足語】(提示：make direct face-to-face contact面對面接觸;make+賓語+形容詞做賓語補足語，形容的的比較級+形容詞的比較級“越來越......”) ，which has led to human relationships becoming more confusing【...，which“這”引導非限定性定語從句：which
主語;has led謂語(現(xiàn)在完成時)，lead to “導致”做謂語;human relationships 賓語，becoming more confusing(現(xiàn)在分詞當后置定語修飾human relationships;more confusing形容詞作表語，因為become是系動詞，所以more confusing就是表語】.
狀語從句：
1.原因狀語從句(由because，since，as，seeing that+句子，considering that+句子，now that+句子)
此外，因為他們了解我們，知道我們的缺點，所以能提供有用的建議。
Furthermore，the people who know us well can advise us effectively because they can understand our strengths and weakness.
解釋：Furthermore【狀語：遞進】，the people 【主語】who know us well【who引導定語從句，修飾people，who主語，know謂語，us賓語，well(副詞做狀語)】 can advise謂語 us賓語 effectively【副詞做狀語修飾advise】 because they can understand our strengths and weakness【because引導原因狀語從句，they主語，can understand謂語，our strengths and weakness賓語，and并列】.
2.讓步狀語從句【although...，...(盡管......，但是......);though;even if雖然，even though既然，no mater，while，whatever】
盡管運動員與演藝員的收入高得似乎有點離譜，但之所以這樣是有原因的。
Although the salaries of athletes and entertainers seem exorbitant，there are valid reasons why they receive them.
解釋：Although the salaries of athletes and entertainers seem exorbitant【由although引導讓步狀語從句，the salaries of athletes and entertainers 主語(由介詞of引導的of athletes and entertainers做后置定語修飾salaries】，there are valid reasons why they receive them【主句：there be有(主語+謂語)valid reasons賓語(valid形容詞做定語修飾reasons;why they receive them由why引導定語從句，they主語，receive謂語them賓語】.
條件狀語從句【if如果;unless除非，in case以防;so long as/as long as只要;so far as只要;on condition that+句子“接通條件”;provided that假如
如果破壞了環(huán)境，人類將無法生存。其次，因為工業(yè)對環(huán)境造成重大的傷害，所以我認為企業(yè)有責任支持在環(huán)保及環(huán)境清潔方面的努力。
If mankind destroys the environment，we will not be able to survive. Second，because industry causes much of the damage to the environment，I believe that companies have some responsibility to support conversation and cleanup efforts.
解釋：If mankind destroys the environment【if引導條件狀語從句，mankind主語destroys謂語 the environment賓語，we will not be able to survive【主句：we主語;will not be able to survive謂語】. Second【狀語：遞進】，because industry causes much of the damage to the environment【原因狀語從句：industry主語; causes謂語; much of the damage賓語(重大的傷害);to the environment【狀語：對環(huán)境】，I believe that companies have some responsibility to support conversation and cleanup efforts【主句：I主語believe 謂語，that引導賓語從句，賓語從句的主語， have 賓語從句的謂語;some responsibility賓語從句的賓語;to support conversation and cleanup efforts由to引導的動詞不定式做賓語】.
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