C.Danh từ

125

1 tháng 10, 1949

Có 1250 bánh xe thì lắp được số xe ô tô là:

1250:4=312(xe) và còn thừa 2 bánh xe.

 Đáp số: 312 xe ô tô và còn thừa 2 bánh xe.

Exercise 16: Arrange the words to make sentences.

1.   hobby/ you/ have/ any / do/?

      ___________________________________________________________________

2.   his/ do/ what/ your/ brother/ free/ does/ in/ time/?

      ___________________________________________________________________

3.   he/ summer/ in/ climbing/ goes/ mountain/ the/ usually/.

      ___________________________________________________________________

4.   friends/ monopoly/ enjoy/ I/ with/ playing/ my/?

      ___________________________________________________________________

5.   it/ boring/ because/ finds/ time/ models/ Jim/ takes/ lots of/ making/.

      ___________________________________________________________________

6.   you/ up/ will/ ice-skating/ future/ in/ take/ the/?

      ___________________________________________________________________

7.   cold/ I/ sore throat/ love/ a/ drinks/ but/ have/ I.

      ___________________________________________________________________

8.   Jim/ overweight/ so/ eats/ is/ fast food/ too much/ he.

      ___________________________________________________________________

9.   too much/ bad/ television/ watching/ for/ health/ your/ is?

      ___________________________________________________________________

10. the flu/ should/ you/ a cold/ if/ have/ or/ you/ home/ stay.

      ___________________________________________________________________

11. Alex/ usually/ fishing/ so/ loves/ goes/ in/ near/ he/ his house/ fishing/ the lake.

      ___________________________________________________________________

12. you/ some/ clean/ yourself/ avoid/ diseases/ by/ can/ keeping.

      ___________________________________________________________________

1.   way/ others/ community/ a/ help/ service/ is/ great/ to/.

      ___________________________________________________________________

2.   they/community/people/ because/ volunteer/ want/ improve/ to/ their/.

      ___________________________________________________________________

3.   encouraged/ books/ people/ street children/ we/ to/ donate/ and clothes/ to

      ___________________________________________________________________

4.   what/ to/ help/ we/ can/ do/ the environment/ clean/?

      ___________________________________________________________________

5.   work/ done/ you/ ever/ have/ volunteer/ any?

      ___________________________________________________________________

6.   free time/ Joe/ doing/ work/ spent/ most/ at/ his/ local hospital/ a/ of/ volunteer.

giúp em với:(

a. Cổ: bộ phận của cơ thể, nối đầu với thân.

b. Cổ: chỗ eo lại ở gần phần đầu của một số đồ vật, giống hình cái cổ, thường là bộ phận nối liền thân với miệng ở một số đồ đựng.

c. Cổ: thuộc về thời xa xưa, trong quan hệ với thời nay.

→ Cổ (a, c) đồng âm, cổ (a, b) đa nghĩa.

children

A) (x-2).(2y+3)=26=1.26=26.1=13.2=2.13

2y+3 lẻ(>=3)

(x-2).(2y+3)=2.13

2y+3=13 suy ra y=5

x-2=2 suy ra x=4

Vậy x,y thuộc {4;5}

B)

2x+1=1;3; (-1); (-3)

2x=-1+{1,3,-1,-3}

x={0,1,-1,-2}

y+2=24,8,-24-8

y={22,6,-26,-10}