unit 15 va bai tap

... b/ reduced c/ recycled 43 How many ………………do you celebrate in your country ?a/ festivals b/ festival c/ festivanl 44.I can see a boy……….a water buffalo A ride B.riding C.to ride D.rode 45 Would ... country with hills and mountains a Highland b Reef c Valley d Bay 14 Please _ the TV before you go to bed a plug b unplug c turn out d come out of 15 He took the early flight London a for b towards ... night 13 I (not see)…………… him for two months 14 We (be) ……………….friends for more than ten years 15 ………… (you/ ever/ win) a competition? V Complete the dialogues using Present perfect or past simple...

Bài tập Unit 15 và 16 tiếng Anh lớp 11 (With key)

... Answer key (Unit 15+ 16) d 10 D 19 B 28 C 37 A 46A d 11 B 20 B 29 B 38 D 47B c 12 A 21 B 30 B 39 C 48D d 13 C 22 C 31 D 40 C 49D c 14 D 23 C 32 C 41 C 50B B 15 C 24 B 33 C 42 A 51B D 16 C 25 B 34...

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Lý thuyết và bài tập ôn thi CĐ ĐH môn Hóa - Chương 15

... n lư t là: A CH3-CH2-CH2OH, CH3-CH(OH)-CH3 B CH3-CH(OH)-CH3,CH3-CH(OH)-CH2-CH3 C CH3-CH(OH)-CH3, CH3-CH2-CH2OH D CH3-CH(OH)-CH2-CH3, CH3-CH2-CH2OH 91 Cho dãy bi n hoá sau: Buten-1 +dd NaOH, t0 ... Butanol-2 H2SO4,0đ c (Y) 170 (S n ph m chính) Trong dãy bi n hoá trên, ch t (X), (Y) có CTCT l n lư t là: A CH3-CH2-CH2-CH2Cl, CH3-CH=CH-CH3 B CH3-CHCl-CH2-CH3, CH3-CH=CH-CH3 C CH3-CH2-CHCl-CH3, ... lư ng công th c c u t o ng v i công th c phân t C4H10O là: A B C D 81 Tên qu c t c a h p ch t CH3-CH(CH3)-CH(OH)-CH(C2H5)-CH3 là: A) 2,4-dimetylhexanol-3 B) 2-etyl-4-metylpentanol-3 C) 3,5-dimetylhexanol-3...

Đề ôn lý thuyết và bài tập mẫu môn hóa đề 15

... B4.Giải (*) Phản ưngù: CnH2n+1OH H2SO4đ to=140 (CnH2n+1 )2O + H2O (1) (1) ⇒(B): (CnH2n+1 )2O Theo đề ta có: dB/A= MB = 1,7 MA (14n + 1).2 +16 14n +18 n=3 = 1,7 Vậy :(A):C3H7OH ; (B): C3H7O-C3H7 ... ĐặT CTTQ (A): CnH2n+1OH Phản ưngù: CnH2n+1OH H2SO4đ to=170 CnH2n + H2O (1) (1) ⇒(B): CnH2n Theo đề ta có: dB/A= MB = 0,7 MA 14n = 0,7 14n +18 n=3 Vậy :(A):C3H7OH ; (B): CH3-CH=CH2 p dụng 4: Đun...

Ly thuyet và bai tap unit 12 lop 8

... said/ told) the class a funny story d Did you ( say/ tell) Sally is coming with us? e "Don't ( say/ tell) lies! ( said/ told) Jame angrily f How old were you when you learned to ( say/ tell) the ... secrets j " Do you think anyone saw us?" She ( said/ told) nervously X Choose the word thar has the underlined part pronounced differently from that of the others (2 marks) a carve b warm c farm d ... buying c go/ buy d went / bought I Choose the word thar has the underlined part pronounced differently from that of the others (2 marks) a arrive b sight c island d prison a who b what c where d which...

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ly thuyet va bai tap unit 10

... never had sucha terrible experience a go b to go c a unfortunately b luckily c certainly d daily a bore b bored c boring d boringly a go b going c to go d to going a me b my c mine d myself a ... midday 10 Smoking is generally recognize as one of the major causesof heart disease Ex Chọn a, b, c, d để điền vào chỗ trống thích hợp I have always wanted (1)…………… fishing On the last day of my vacation, ... is more beautiful than a flower stood in a vase 2 Do you mind take the book back to the libraryfor me? I asked Sara drive me to the station She usually helps old people by their shopping and cleaning...

Ly thuyet va bai tap Unit 10 Anh 8

... 18 The police have arrested five suspects 19 The doctor ordered him to take a long rest 20 Lightning struck the house Unit 10: I-Grammar: ... the leaky faucet 10 Someone has changed the name of this street 11 Elias Howe invented the sewing machine in 184 5 12 The librarian ... housework ……………………………………………………………………………… 17 my mother had written the letter before 1 985 ……………………………………………………………………………… 18 I am cleaning my room ……………………………………………………………………………… 19 They should phone her...

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ly tuyet va bai tap unit 9 anh 8

... studying very …………… a hardly b harder c hard 16 You should cool the burn ……………… a immediate b.immediately c immediating 17 What time ……….Maria be her? a will b shall c is 18 She will be here ………… ... Eyepiece d Eye chart Leave the victim …………… flat and don’t let him …………chilled a lying/to become b to lie/ become c lying/ become d to lie/ to become He broke his legs, so he has to use a(an)…………… ... you want He promises he ………….go to my party ………………I carry the box for you? 8 ……… they come and give a helping hand? 9. …………… you hurry, please? We don’t have much time left 10.The ambulance………….be...

Ly thuyet va bai tap unit 13 Anh 8

... everyday.” 12 She said :” We should read this sentence more carefully, Hung.” 13 “You should prepare your lesson before going to school, Na.” Tam said ... them his, her their their his, her theirs theirs Gián tiếp That Those There Then/ at one/ immediately Before That day That night Tomorrow Yesterday Last night/ week/ month/ year The next/ following ... free time to enjoy themselves is very strong Can I borrow your ? I want to make my shirt quickly If you have enough free time, Thailand III Do the following crossword Look at the clues to help...

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Ly thuyet va bai tap unit 14 Anh 8

... …………, after ten minutes , dark clouds began to appear A Unfortunate B Unfortunately C Unfortunated D Unfortunatedly 18* .While my mother ……… dinner, my father came home from work A, cooked B cooking ... expensive 14) The Robinson family / making / preparation / Tet 15) You / mind / if / wait / me / moment? 16) Who / man / waiting outside? 17) There / some children / swim / the river 18) You / ... mother wanted to know if I…… alright with my work A am B am not c was D have been 8* Angkor Wat should really…………….as a wonder A know B known C be know D be known 9** He asked me………… I liked...

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NGỮ PHÁP TIẾNG ANH 7 và bài tập TIẾNG ANH lớp 7 16 UNIT

... mu sc 26 What size : hi cho kớch c 27 How heavy : hi cho cõn nng 28 How + +S+ come ? : hi cho phng tin 14 does go get travel The end Tóm tắt ngữ pháp tiếng anh Present Simple and Present Progressive ... 26/3 20/11 19/8 30/4 10/10 22/12 7/ 5 2/9 10 27/ 7 VI Em hóy sp sp nhng cõu sau thnh bi hi thoi hp lớ 1/ 2/ 3/ 3/ 4/ 5/ 6/ 7/ A Its on April , 27 th B Today is April 23rd C Yes, that ... verb)! Ex: What a boring party! What lovely flowers! Khụng dựng mo t a/ an vi danh t khụng m c hoc danh t s nhiu 16 PREPOSITIONS (Gii t) Prepositions of time (Gii t ch thi gian) - In (vo, vo...

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NGỮ PHÁP và bài tập bổ TRỢ TIẾNG ANH lớp 7 đầy đủ 16 UNIT

... cho mu sc 26 What size : hi cho kớch c 27 How heavy : hi cho cõn nng 28 How + +S+ come ? : hi cho phng tin does go get travel The end Tóm tắt ngữ pháp tiếng anh Present Simple and Present Progressive ... 20/11 19/8 30/4 10/10 22/12 7/ 5 2/9 10 27/ 7 VI Em hóy sp sp nhng cõu sau thnh bi hi thoi hp lớ 1/ 2/ 3/ 3/ 4/ 5/ 6/ 7/ A Its on April , 27 th B Today is April 23 rd C Yes, that ... verb)! Ex: What a boring party! What lovely flowers! Khụng dựng mo t a/ an vi danh t khụng m c hoc danh t s nhiu 16 PREPOSITIONS (Gii t) Prepositions of time (Gii t ch thi gian) - In (vo, vo...

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từ vựng và bài tập lớp 8 unit 4

... quay lại/ quay trở mang theo rơm Cuối cùng, vào cuối Ngớ ngẩn,ngu ngốc Tham lam Đạo đức Bài học đạo đức LANGUAGE FOCUS A PREPOSITION OF TIME (GIỚI TỪ CHỈ THỜI GIAN): In + năm/ mùa ( in 2006/ ... A in b.on C at D by th 12 My birthday is _May 28 A in B at C on D by 13 They came here _8a.m and 9a.m A at B before C after D between 14 Springs come _ summers A at B before C after ... blank spaces (1) the United States and Canada, (2) _ a popular legend about a monster People say that it is very big and that it has a lot of hair (3) _ name is Bigfoot, (4) _ there are big...

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Bai hoc va bai tap chuong 6 nhom oxi CB-NDV.doc

... thể tích khí hỗn hợp : A 20% oxi ; 80% ozon B 50% oxi ; 50% ozon C 40% oxi ; 60 % ozon D 66 ,67 % oxi ; 33,33% ozon Câu 36 : Phân tích chất X người ta nhận thấy có 40% S 60 % O khối lượng X : A SO2 ... định khơng nói khả phản ứng oxi ? A Oxi tác dụng với tất phi kim B Oxi tham gia vào q trình cháy , gỉ , hơ hấp C Những phản ứng mà oxi tham gia phản ứng oxi hóa khử D Oxi phi kim hoạt động Câu ... 40% 60 % D 60 % 40% Câu 16: Tỉ khối hỗn hợp O2 O3 so H2 20 Hỏi oxi chiếm % thể tích hỗn hợp ? A 40 B 60 % C 30% D 50% Câu 17: Cho m gam Fe tác dụng hồn tồn với dung dịch H2SO4 đặc, nóng (dư) thu 6, 72...

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Lý thuyết và bài tập Pascal

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