Tính hợp lí
a) 7/-25+ -18/25+ 4/23+ 5/7+ 19/23
= ( 7/-25 + -18/25 ) + ( 4/23 + 19 /23 ) + 5/7
= -1 + 1 + 5/7
= 5/7
b) 7/19 x 8/11 + 7/19 x 3/11+ 12/19
= 7/19 x ( 8/11 + 3/11 ) + 12/19
= 7/19 + 12/19
= 1
1.chuyen cac dong tu sau sang qua khu
1,stay 16 can
2.visit 17 read
3. get 18 tell
4. write 19.talk
5.take 20.walk
6.eat 21.go
7 have 23.teach
8.do 24.stop
9.play 25.make
10 drink 26.buy
11 see 27 be
12 give 28.move
13.return 29.cry
14.remember 30.sit
15.think 22.receive
bài 1: thực hiện phép tính:
a) \(\dfrac{-5}{12}\) . \(\dfrac{4}{19}\) +\(\dfrac{-7}{12}\) . \(\dfrac{4}{19}\) -\(\dfrac{40}{57}\)
b) \(\dfrac{1}{3}\) .\(\dfrac{4}{5}\) +\(\dfrac{1}{3}\).1.\(\dfrac{1}{5}\) +( \(\dfrac{-3}{2}\) )^2
giúp em
give the correct from of the verbs in the past tense
1.do 6 cut 11 buy 16 think
2.teach 7 put 12 have 17 see
3 send 8 give 13 take 18 eat
4 spend 9 write 14 go 19 sing
5 begin 10 be 15 make 20 wear
first read out the words then fill in the blanks with "a","an"or"some"
1. some tea 2. ... elephant 3. ... box 4. ... house 5. ... onions 6. ... hour 7. ... cup 8. ... egg 9. ... union 10. ... plates 11. ... salt
12. ... eye 13. ... uncle 14. ... blouse 15. ... farmers 16. ... pepper 17. ... horse 18. ... water 19. ... money 20. ... milk
IV. Translate into English.
V. Arrange the plural nouns according to columns: /s/, /z/, /iz/:
1. games 6. pieces 11. classmates 16. timetable
2. classes 7. floors 12. thanks 17. books
3. beds 8. faces 13. exercises 18. streets
4. students 9. groups 14. partners 19. desks
5. days 10. greetings 15. numbers 20. bookcases
/s/:...........................................................................................................................................
....
/z/:
.............................................................................................................................................
/iz/:
.............................................................................................................................................
III. Give the opposite adjectives:
1. good. . . . . . . . . . . . . . . . . . . . . 2.careful. . . . . . . . . . . . . . . . . . . 3. slow. . . . . . . . . . . . . . . . . . . .
4. hard. . . . . . . . . . . . . . . . . . .
5. stupid. . . .
6. Ugly. . . . . . . . . . . . . . . . . . . . . . . .
7. easy. . . . . . . . . . . . . . . . . . . . . . . .
8, sad. . . . . . .
9. late. . .
10 boring. . . . . . . . . . . . . . . . . . 11, young. . . . . . . . . . . . . . . . . . . twelfth .
12.small. . . . . . . . . . . . . . . . . . . . 13. thin. . . . . . . .
14 strong. . . . . . . . . . . . . . . . . . 15. cold. . . . . . . . . . . . . . . . . . . . . . 16. rich. . . . . . . . . . . . . . . . . . . . . 17, new. . . . . . . . . . . . . . . . . . . . . 18, tal.
19, expensive. . . . . . . . . . . . . 20. clean. . . . . . . . . . . . . . . . . . . . 21. short.............
Translate into your language:
1. accident:
2. afterwards:
3. ambulance:
4. among:
5.barbecue:
6. become:
7. bill:
8. belt:
9. brake:
10. campsite:
11. cassette recorder:
12. cash:
13. cheque:
14. certain:
15. centimetre:
16. church:
17. comfortable:
18. click:
19. crowd:
20. crossroads:
Ex: Add a questiontag to these sentences
1. Let's clean,.................?
2. You seldom make,.................?
3. Open,.................?
4. Something is,.................?
5. I ought to,.................?
6. Don't try,.................?
7. Everyone is,.................?
8. Let's read,.................?
9. Anything is,.................?
10. She never cries,.................?
11. Everybody is,.................?
12. She ought to,.................?
13. Nothing is,.................?
14. Let's check,.................?
15. Something is,.................?
16. Don't close,.................?
17. She rarely runs,.................?
18. Somebody is,.................?
19. Listen,.................?
20. Nobody is,.................?
bài 1: Tính
a) \(\dfrac{-5}{7}\) . \(\dfrac{2}{11}\) + \(\dfrac{-5}{7}\) . \(\dfrac{9}{11}\) + 1\(\dfrac{5}{7}\)
b) \(\dfrac{-3}{14}\) +\(\dfrac{5}{8}\) -\(\dfrac{1}{2}\)
c) ( \(\dfrac{1}{4}\) +\(\dfrac{-5}{13}\))+( \(\dfrac{2}{11}\) + \(\dfrac{-8}{13}\) + \(\dfrac{3}{4}\) )
d) ( \(\dfrac{21}{31}\) + \(\dfrac{-16}{7}\) )+( \(\dfrac{44}{53}\) +\(\dfrac{10}{31}\) )+\(\dfrac{9}{53}\)
e) \(\dfrac{1}{9}\) - \(\dfrac{5}{6}\) -4
___________
\(\dfrac{7}{12}\) - \(\dfrac{1}{36}\) -10
giúp em
