2022年2022年初中英語定語從句專項練習(xí)題與答案詳解

1、精選學(xué)習(xí)資料 - - - 歡迎下載定語從句專項練習(xí)題與答案詳解1. nearly all the streets are in straight lines、 from east to west. those run from north to south are called avenues.a. running; thatb. run; whoc. running; whod. run; that2. this is the case heallhiss hmaodney stolen.a. whenb. wherec. thatd. on which3. mr. smith will p

2、ay a visit to beijing this autumn、 we will enjoythe olympic games in 2021.a. whereb. whenc. whichd. how4. the artist will not paint people or animals but he will paint anything .a. that the little girl asks himb. the little girl asks him toc. for the little girl to ask himd. what the little girl ask

3、s him5. how did you get in touch with the travel agent、 robin. oh、 that s easy. i surfed the internet and then called one the telephone number is provided.a. whichb. in whichc. of whichd. whose6. october 15 th is my birthday、 i will never forget.a. whenb. thatc. whatd. which7. the treatment will con

4、tinue until the patient reaches the point he can walk correctly and safely.a. whenb. wherec. whichd. whose8. there are several research centers in china a certain disease called bird flu is being studied.a. whichb. wherec. whend. what9. i hope that the little i have been able to do does good to them

5、 all.a. whichb. whatc. thatd. when10. the time is not far away modern communications will become widespread in china s vast countryside.a. asb. whenc. untild. before11. is known to everybody、 taiwan is a part of china. we must unify it.a. itb. asc. whichd. what12. i shall never forget the day shen z

6、hou v was launched、 has a great effect on my life.a. when、 whichb. that、 whichc. which、 thatd. when、 that13. the bread my wife makes is much better than you can buy at a store.a. that whichb. one thatc. that of whichd. this of which14. there is no such place you dream of in all this world.a. thatb.

7、whatc. whichd. as15. the people、 had been damaged by the flood、 were given help by the red cross.a. all whose homesb. all of whose homesc. all their homesd. all of their homes16. the humans are destroying nature day by day、 of course、 will cause severe punishment from it sooner or later.a. whob. whe

8、nc. on whichd. which17. is this research center you visited the modern equipment last year.a. whereb. thatc. the one thatd. the one where18. some pictures of the river brought the days back to the old they swam in it.a. whenb. thatc. whod. where19. the man showed us so heavy a stone no man can lift.

9、a. thatb. asc. whichd. and20. he stayed there for quite a long time、 during time he learned much spoken english.a. thatb. thisc. whichd. same- 1 -精品學(xué)習(xí)資料精選學(xué)習(xí)資料 - - - 歡迎下載答案與解析：1. a. 主語與 run 延長 為主動關(guān)系,所以用現(xiàn)在分詞；those 指街道,所以不用who 而用 that 來引導(dǎo)定語從句；2. b. 由于在此題中where 引導(dǎo)定語從句,表示“在這種種況下 ”,與 in which 相當(dāng)；3. a. 由于先

10、行詞為beijing 而不為 this autumn 所以用 where 引導(dǎo)定語從句；4. b. 答案 b 為省略了關(guān)系代詞that 的定語從句,另外,to 后仍省略了動詞原形paint；5. c. 由于 of which 引導(dǎo)定語從句,并在從句中作定語；of which the telephone number = whose telephone number；6. d. 由于這為個非限制性定語從句,先行詞為前面一句話的內(nèi)容；7. b. 由于表示 “階段.程度.地步”的 the point 在定語從句中作地點狀語,所以用where 引導(dǎo)定語從句；8. b. 由于先行詞為research c

11、enters并在定語從句中作狀語,所以用where；9. c. 由于當(dāng)先行詞為表示事物的all、 little、 few、 much、 anything、 everything、 nothing等時,多用 that 引導(dǎo)定語從句；10. 由于先行詞為the time,且在定語從句中作狀語,所以用 when 引導(dǎo)；此題的先行詞與定語從句被主句謂語分開了,要善于辨別；11. b. 先行詞為 taiwan is a part of china 整個主句,一般由as 或 which 引導(dǎo)定語從句,但which 引導(dǎo)的定語從句只能放在主句之后, 另外, as 有“正如 ”之意,而 which 沒有,所以

12、用as；順便說說, 原句改為： it is known to everybodythat taiwan is= wt ihsaknown to everybody is that taiwan is12. a. 兩空都為考查定語從句,先行詞分別為the day 和 shen zhou v was launched、 theday 在定語從句中作狀語,用when 引導(dǎo)；后句為非限制性定語從句,不能用that,要用 which ；13. a. 由于替代不行數(shù)名詞the bread 只能用 that ,排除 b 和 d；又由于先行詞that the bread在定語從句中作buy 的賓語,用whic

13、h ,所以選 a ；14. d. 當(dāng)定語從句的先行詞前有such、 so、 as等詞語時,由as 引導(dǎo),并且 as 在定語從句中作主語或賓語,as 在此題中作 dream of 的賓語；留意：在表示“如此以致” 的 such /sothat 結(jié)構(gòu)中, that 不作任何句子成份；15. b. 考查非限制性定語從句,all of whose homes = all of their homes 他們?nèi)康姆孔樱?6. d. 由于先行詞為前面整個句子,且在從句中作主語,所以用which ；of course 為插入語；17. d. 將疑問句改為陳述句：this research center is

14、明顯缺少先行詞, 必需加上代詞the one 來作先行詞, 又因定語從句不缺主語或賓語,所以用關(guān)系副詞where；假如在this 后加 the,就選 where,請想想這為為什么；18. a. 由于先行詞為the days,并在定語從句中作狀語；19. b. 當(dāng)先行詞前有so 時,用 as 引導(dǎo)定語從句, as 在從句中作主語或賓語；假如在lift 后加上 it,答案就為that 了,請想想這為為什么；20. c. 因前后均的句子, 必需要選連詞, 排除 b 和 d；又因在介詞后不能用that 來引導(dǎo)定語從句, 所以選 c；during whichtime 在那段時間里；1. the brid

15、ge a big ship can go has been built.a. under which b. under that c. in which d. on which解析：考查定語從句隨便性關(guān)系引導(dǎo)詞；基本常識：定語從句隨便性關(guān)系引導(dǎo)詞由搭配介詞 +which/whom 構(gòu)成,先行詞指人用前者,先行詞指事 /物用后者；定語從句引導(dǎo)詞的判定方法為將先行詞想方設(shè)法放入從句,使從句成為一個完整且有先行詞成分的陳述句；此句中,先行詞為 the bridge; 從句為 a big ship can go、 二者構(gòu)成的完整句為a big ship can go under thebridge.

16、因此,答案為 a2. the book is torn is mine.a. the cover of whichb. the cover of thatc. which the coverd. whose cover of解析：考查定語從句隨便性關(guān)系引導(dǎo)詞以及所屬關(guān)系引導(dǎo)詞；此句中先行詞為the book、 從句應(yīng)為 cover istorn、 二者構(gòu)成的完整句為the cover of the book is torn. 因此隨便性關(guān)系引導(dǎo)詞結(jié)構(gòu)為the cover of which 或所屬關(guān)系引導(dǎo)詞結(jié)構(gòu) whose cover. 因此,答案為a3. he talked about the

17、 classmates and the school he had visited.a. whob. thatc. whichd. about which解析：考查先行詞即指人又指物的定語從句相同意思引導(dǎo)詞；定語從句相同意思引導(dǎo)詞基本要點,無論限定性仍為非限定性定語從句的主賓表引導(dǎo)詞均為相同意思引導(dǎo)詞；限定性定語從句中,相同意思引導(dǎo)詞有一般引導(dǎo)詞who、 whom、 which 以及通用引導(dǎo)詞that. 先行詞指人,作從句主語用 who、 作從句定語或作從句中介詞的賓語均用引導(dǎo)詞whom、 先行詞指物,用引導(dǎo)詞which、 限定性定語從句中,作相同意思的引導(dǎo)詞均可以用that 替代；此外,限定

18、性定語從句中作賓語的引導(dǎo)詞可以省略；非限定性定語從句中,相同意思引- 2 -精品學(xué)習(xí)資料精選學(xué)習(xí)資料 - - - 歡迎下載導(dǎo)詞只能為一般引導(dǎo)詞who/whom/which , 不能用通用引導(dǎo)詞that.非限定性定語從句中,前一完整句在從句中作主賓表成分時,也要看作為定語從句相同意思引導(dǎo)詞,先行詞指事物的情形,用引導(dǎo)詞 which. 此句中, 先行詞為 the classmates and theschool, 從句為 he had visited、 二者構(gòu)成的完整句為he had visited the classmates and the school. 所以不難發(fā)覺先行詞在限定性定語從句中

19、作visited 的賓語使用,先行詞既指人又指物；因此,答案為b4. you have seen the girl sister is a chinese teacher. a. whomb. of whomc. whosed. of which解析：考查定語從句所屬關(guān)系引導(dǎo)詞；此句先行詞為 the girl ,定語從句為 sister is a chinese teacher,二者構(gòu)成的完整句為the girl's sister is a chinese teacher. 先行詞的 's 全部格構(gòu)成的所屬關(guān)系結(jié)構(gòu)在從句中作定語；因此, 答案只能為 c.定語從句固定關(guān)系引導(dǎo)詞相

20、關(guān)要點：先行詞在定語從句中除作從句主賓表成分以外的成分,均為相關(guān)意思引導(dǎo)詞,其中包括固定關(guān)系引導(dǎo)詞和隨便性關(guān)系引導(dǎo)詞；固定關(guān)系引導(dǎo)詞只有when時間關(guān)系 ,where（地點關(guān)系）,why 先行詞為 thereason、緣由關(guān)系） whose（所屬關(guān)系,包括's 全部格關(guān)系和of 全部格關(guān)系,由whose 修飾的名詞成分前不能用冠詞成分,whose 應(yīng)為名詞的前置性定語成分）；隨便性關(guān)系引導(dǎo)詞為相關(guān)搭配介詞+which/whom 構(gòu)成的引導(dǎo)詞結(jié)構(gòu)充當(dāng)；5. we should do all is useful to people.a. /b. thatc. itd. which解析：考查

21、限定性定語從句中 先行詞為不定代詞的相同意思引導(dǎo)詞；此句中先行詞all 為不定代詞,從句為is useful to people ,從句缺主語,二者構(gòu)成的完整句為all is useful to people. 為了便于懂得, all =all the things/ everything.所以從句的完整句仍可以寫成everything isuseful to people; 或 all the things are useful to people.因此,答案為b6. we came to a place they had never paid a visit before. a. whic

22、hb. in whichc. on whichd. towhich 解析：考查定語從句隨便性關(guān)系引導(dǎo)詞；此句先行詞為a place、 從句為 they had never paid a visit before、 二者構(gòu)成的完整句為 they had never paid a visit to the place before. 因此,答案為d；此句的可轉(zhuǎn)換概念進(jìn)行相同意思引導(dǎo)詞的考查,題干為we came to a place they had never visited before.其答案可以為 which/that/ 省略引導(dǎo)詞；7. those finished doing it p

23、ut up your hands. a. who haveb. who hasc. which haved. have 解析：考查為指示代詞在從句中作主語的指代分析以及引導(dǎo)詞的數(shù)量；此句中,those 為定語從句的先行詞,相當(dāng)于thosestudents/clerks、 finished diong it 為定語從句成分,從句缺主語以及謂語動詞的完成時態(tài)助動詞；主語指人,用一般引導(dǎo)詞who、 引導(dǎo)詞數(shù)量與先行詞一樣為復(fù)數(shù)；因此,答案為 a9. the man was a friend of mine.a. that you just talked tob. whom you just talk

24、ed to himc. who you just talked to himd. which you just talked to解析：考查完整的定語從句；此句中先行詞在從句中作介詞賓語,先行詞相同意思用引導(dǎo)詞充當(dāng),先行詞指人；因此,答案為a10. i went to the school my father once worked.a. thatb. whichc. whered. on which解析：考查定語從句相關(guān)意思引導(dǎo)詞；此句先行詞theschool、 定語從句 my father once worked、 二者構(gòu)成的完整句o 為 my father once worked in

25、the school. in the school 可以用固定關(guān)系引導(dǎo)詞中的地點關(guān)系引導(dǎo)詞where 表示、 也可以用隨便性關(guān)系 引導(dǎo)詞in which 表示；因此,答案為c11. i shall never forget those years i lived in the country with the farmers、 has a great effect on my life.a. that; whichb. when; which c. which; thatd. when; who 解析： 前一空考查定語從句相關(guān)意思引導(dǎo)詞； 后一空考查定語從句整句先行詞相同意思引導(dǎo)詞；前肯定語從

26、句的完整句為 i lived in the country with the farmers those years. 先行詞在從句中作非主賓表成分, 先行詞與時間相關(guān)； 后肯定語從句的完整句在懂得基礎(chǔ)上的意思轉(zhuǎn)換為 the experience hasa great effect on mylife. the experience= i lived in the country with the farmers those years ；所以為整句先行詞在從句中作主語；因此,答案為b12. the weather turned out to be very good、 was more th

27、an we could expect.a. whatb. whichc. thatd. it解析：考查定語從句整句先行詞在從句中作主語；非限定性定語從句在意思懂得基礎(chǔ)上的完整句為thisnatural phenomenan was more than we could expect.this natural phenomenan= the weather turned out to be very good. 因此,答案為 b13. carol said the work would be done by october、 personally i doubt very much. a. it

28、b. thatc. whend. which解析：考查定語從句整句先行詞在從句中作賓語；非限定性定語從句的完整句為personly i doubt that the work would be done by october very much.因此,答案為 d14. dorothy was always speaking highly of her role in the play、 、 of course、 made the others unhappy.a. whob. whichc. thisd. what解析：考查非限定性定語從句整句先行詞在從句中作主語；非限定性定語從句完整句為it

29、 made the others unhappy that dorothy was always speaking highly of her role in the play.- 3 -精品學(xué)習(xí)資料精選學(xué)習(xí)資料 - - - 歡迎下載it=dorothy was always speaking highly of her role in the play.在從句中構(gòu)成形式主語與真實主語關(guān)系；因此,答案為b15. is known to all、 china will be an powerful country in 20 or 30 years' time.a. that; adva

30、ncingb. this; advancedc. as; advancedd. it; advancing解析：前一空考查前置性非限定性定語從句整句先行詞在從句中作主語,后一空為與動作趨向相關(guān)的非謂語分詞形容詞在從句中作前置性定語；非限定性定語從句整句先行詞在從句中作主語,只能用as 引導(dǎo),以職高方法懂得,可以為固定表達(dá)結(jié)構(gòu)的插入語來懂得,as is known to all.與動作趨向相關(guān)的分詞形容詞,ing 分詞表示動作正在進(jìn)行或動作即將產(chǎn)生,ed 分詞表示動作已經(jīng)終止,此句中 advancing country 表示進(jìn)展中國家,advanced country 表示發(fā)達(dá)國家 .因此,答案

31、為c；16. is mentioned above、 the number of the students in senior schools is increasing. a. whichb. asc .thatd. it解析：考查前置性非限定性定語從句整句先行詞在從句中作主語；為綜上所述的固定表達(dá)結(jié)構(gòu)；因此,答案為 b17. is known to everybody、 the moon travels round the earth once every month.a. itb. asc. thatd. what解析：固定表達(dá)結(jié)構(gòu)或前置性非限定性定語從句引導(dǎo)詞為as, 答案為 b18.

32、 it was an exciting moment for these football fans this year、 for the first time in years their team won the world cup.a. thatb. whilec. whichd. when解析：非限定性定語從句引導(dǎo)詞考點,先行詞為the exciting moment 、將先行詞放入從句為for the first time in the years their team won the world cup at the moment、先行詞放入 從句為介詞短語作時間狀語,相關(guān)意思引導(dǎo)

33、詞,固定關(guān)系引導(dǎo)詞用時間關(guān)系引導(dǎo)詞when、 隨便性關(guān)系引導(dǎo)詞用at which.句中 for the first time in years 為強詞調(diào)結(jié)構(gòu)；答案為 d19. have you seen the film "titanic"、 leading actor is world famous.a. itsb. it'sc. whosed. which解析：非限定性定語從句引導(dǎo)詞考點,先行詞 the film ,放入從句為the leading actor of the film is world famous、先行詞放入從句為of 全部格作后置性定語,用相

34、關(guān)意思引導(dǎo)詞中的所屬關(guān)系引導(dǎo)詞；答案為 c20. we will be shown around the city: schools、 museums、 and some other places、 other visitors seldom go. a. whatb. whichc. whered. when解析：非限定性定語從句考點,先行詞為some other places、 放入從句為other visitors seldom go to these places、 先行詞在從句中為相關(guān)意思引導(dǎo)詞作地點狀語,固定關(guān)系引導(dǎo)詞用地點關(guān)系引導(dǎo)詞where、 隨便性關(guān)系引導(dǎo)詞用to which

35、. 本人認(rèn)為用隨便性關(guān)系引導(dǎo)詞最好；答案為c21. the famous basketball star、 tried to make a comeback、 attracted a lot of attention.a. whereb. whenc. whichd. who解析：非限定性定語從句考點,先行詞為 the famous basketball star、 放入從句為the basketball star tried to make a comeback. 先行詞在從句中作主語,相同意思引導(dǎo)詞,先行詞指人；答案為d22. in the office i never seem to h

36、ave time until after 5:30 p.m.、 many people have got home. a. whose timeb. thatc. on whichd. by which time解析：非限定性定語從句, 先行詞 5:30pm、 放入從句為many people have got home until/by 5:30pm ；先行語相關(guān)意思在從句中作時間狀語,固定關(guān)系引導(dǎo)詞when、 隨便性關(guān)系引導(dǎo)詞until which、 by which.答案為 d23. recently i bought an ancient chinese vase、 was very

37、reasonable. a. which priceb. the price of whichc. its priced. the price of whose解析：非限定性定語從句,先行詞 the ancient chinese vase、 放入從句為the ancientchinese vase was very reasonable,、 先行詞在從句中作主語,相同意思引導(dǎo)詞, 先行詞指物, 引導(dǎo)詞用 which.或 the price ofthe chinese vase was very reasonable、 先行詞的 of 全部格在從句中作后置性定語,所屬關(guān)系引導(dǎo)詞結(jié)構(gòu)用whose

38、 price、 隨便性關(guān)系引導(dǎo)詞用the price of which、答案為 d23. i shall never forget those years i lived in the country with the farmers、 has a great effect on my life.a. that; whichb. when; whichc. which; thatd. when; who解析：前一空為限定性定語從句引導(dǎo)詞,后一空為非限定性定語從句, 前一句先行詞those years、 放入從句為i lived in the country with the farmers t

39、hose years.先行詞在從句中作時間狀語,相關(guān)意思引導(dǎo)詞；固定關(guān)系引導(dǎo)詞用when. 后一空先行詞為前一從句為整句先行詞,可懂得為那段時間的經(jīng)受 the experience、 放入從句為the experience has a great effect on my life. 先行詞在從句中作主語,相同意思引導(dǎo)詞,先行詞指事,非人即物；答案為b24. after living in paris for fifty years、 he returned to the small town he grew up as a child. a. whichb. wherec. thatd. w

40、hen解析：限定性定語從句,先行詞the small town 放入從句為he grew up in the small towm as a child.先行詞短語結(jié)構(gòu)在從句中作地點狀語,相關(guān)意思引導(dǎo)詞,固定關(guān)系引導(dǎo)詞用where、 隨便性關(guān)系引導(dǎo)詞用in which ； 答案為 b25. the film brought the hours back to me i was taken good care of in that far-away village. a. untilb. that- 4 -精品學(xué)習(xí)資料精選學(xué)習(xí)資料 - - - 歡迎下載c. whend. where 解析：限定性

41、定語從句考點, 先行詞 the hours、 放入從句為 i was taken good care of in that far-away village during the hours. 先行詞短語結(jié)構(gòu)在從句中作時間狀語,固定關(guān)系引詞用 when, 隨便性關(guān)系引導(dǎo)詞用 during which. 答案為 c26. he's got himself into a dangerous situation he is likely to lose control over the plane.a. whereb. whichc. whiled. why解析：限定性定語從句考點,先行詞為

42、a dangerous situation、 放入從句為he is likely to lose controlover the plane in that dangerous situation. 先行詞短語結(jié)構(gòu)在從句中作地點狀語,固定關(guān)系引導(dǎo)詞用where、 隨便性關(guān)系引導(dǎo)詞用 in which、隨便性關(guān)系引導(dǎo)詞最好；答案為 a27. -did you remember to give mary the money you owed her.-yes. i gave it to her i saw her. a. whileb. the momentc. suddenlyd. once 解

43、析： 定語從句及狀語從句綜合性考點,如此處有 the moment 時, the moment在主句中作時間狀語,同時作定語從句的先行詞；先行詞放入從句為i saw her at the moment. 先行詞短語結(jié)構(gòu)在從句中作時間狀語,引導(dǎo)詞用固定關(guān)系引導(dǎo)詞when,引導(dǎo)詞不同省略；while 引導(dǎo)時間狀語從句,從句謂語必需為連續(xù)性動詞或 狀態(tài), see為瞬時動作；suddenly 為時間副詞,作為連結(jié)副詞時,采納插入連結(jié)方式,前后用逗號隔開；once 引導(dǎo)的狀語從句有時間狀語從句意味,也不條件狀語從句意味,可以用于此句的表達(dá)；答案為 d28. is this the reason at t

44、he meeting for his carelessness in his work.a. he explainedb. what he explainedc. how he explainedd. why he explained 解析： 限定性定語從句考點,先行詞為 the reason、 定語從句引導(dǎo)詞為 why.29. i shall remember the day we met first.a. thatb. whichc. whered. when 解析：限定性定語從句考點,先行詞the day, 放入從句為we met first on the day. 先行語短語結(jié)構(gòu)在從句

45、中作時間狀語,固定關(guān)系引導(dǎo)詞用when、 隨便性關(guān)系引導(dǎo)詞用on which. 答案為 d30. can you lend me the dictionary the other day.a. about that you talkedb. that you talkedc. which you talkedd. that you talked about 解析： 限定性定語從句考點,先行語 the dictionary、 放入從句為you talked about the dictionary the other day. 先行詞短語結(jié)構(gòu)在從句中作賓語,從句可用 about which yo

46、u talkd the other day或 which/ that/省略引導(dǎo)詞you talked about the other day. 答案為 d31. the book isn t in the library.a. what i needb. i needc. that i needitd. which i need it解析：限定性定語從句考點,先行詞 the book 放入從句為 i need the book. 先行詞在從句中作賓語,相同意思引導(dǎo)詞,先行詞指物,引導(dǎo)詞可用which/that/ 省略引導(dǎo)詞；答案為 b32. it was raining、 was a pity

47、. a. whatb. whichc. thatd. it解析：非限定性定語從句考點,先行詞為前一主句構(gòu)成整句先行詞現(xiàn)象,可以懂得為這種情形this situation、放入從句為this situation was a pity、 先行詞在從句中作主語,相同意思引導(dǎo)詞,先行詞指事,非人即物；答案為b33. he studied hard at school when he was young 、 contributes to his success in latter life a.asb. thereforec. whichd. so that解析：非限定性定語從句考點,先行詞為前一主句構(gòu)

48、成整句先行詞現(xiàn)象,可以懂得為這一經(jīng)受 this experience 放入從句為this experience contributes to his success in his latter life.先行詞在從句中作主語,相同意思引導(dǎo)詞,先行詞指事,答案為c34. the size of the audience、 we had expected、 was well over one thousand.a. whomb. whoc. asd. that 解析：非限定性定語從句考點,先行語 the size of the audience、 放入從句為we had expected the

49、size of the audience、先行語在從句中作賓語；先行詞指物,引導(dǎo)詞可用which. espect 可構(gòu)成固定短語的插入語表示據(jù)估量,as it was expected或 as it has been expected或 as sb has expected. 答案為 c35. one of the most beautiful natural wonders in the united states is the grand canyon、 located in northwestern arizona.a. andb. wherec. isd. which is解析：非限定

50、性定語從句考點,先行詞thegrand canyon、 放入從句為the grand canyon is located in northwestern arizona.先行語在從句中作主語,先行語非人即物,答案為 d； 值得留意的為,locate 為使動用法的及物動詞,在做句子謂語時,要采納被動表達(dá)結(jié)構(gòu)；36. do you know the worker . a. whom i often talkb. with who i often talkc i often talk withd.that i often talk解析：限定性定語從句,先行詞為the worker ,放入從句為i o

51、ften talk with the worker.先行詞短語結(jié)構(gòu)在從句中作賓語,定語從句表達(dá)可以為with whom i often talk或 whom/ that/ 省略引導(dǎo)詞i often talk with.答案為 c37. electric current can produce heat we can weld metals. a. whichb. in whichc. by means of whichd. what 解析： 限定性定語從句考點,先行語 heat放入從句為we can weld metals by means of heat 或 we can weld metals- 5 -精品學(xué)習(xí)資料精選學(xué)習(xí)資料 - - - 歡迎下載by the heat. 先行