Trong cốc nước đường có các phân tử đường và các phân tử nước. Hãy cho biết
a. Các phân tử này có giống nhau không?
b. Vị trí các phân tử đường và nước tròn cốc có xác định được không? Tại sao?
Read more: https://dethihocki.com/de-thi-hoc-ki-2-lop-8-mon-ly-thcs-hoang-van-thu-2019-a14386.html#ixzz5mgbpcPpz
I. give the correct form the verbs in brackets
1 i am not.....about our chances of success (skeptic)
2 you must meet these....if you want to take this course (require)
3 the lake is one of the tourist....of the town (attract)
4 this high school was.... a small primary school (origin)
5 we get very.....with the same food evry day (bore)
6 they are making the final.... of next week's Christmast parade (prepare)
7 we took a bus tour to a........Maori village (tradition)
8 it is.....for people to do their shopping in the city center (danger)
9 i think the hard exercise is....for good students (suit)
10 can you gve us a.....of your house? (describe)
II. write the meaningful sentences using the words given
1 christmas songs/perform/people/towns and villages/many years/ ago
.................................................................................
2 both the teachers/students/delight/with/the result/the exams
....................................................................................
3 he/already/done/homework
................................................................
4 we/happy/that/you/participated/useful activity
..........................................................................
5 Ba/Nam/ spend/an hour/play/this game/last night
.............................................................
6 my father/be/ unemployed/ since/he/ leave/his job
........................................................
III. rewrite these sentences, begining with the words provided
1 my father waters this flower every morning
-> this flower..............................
2 Lan told me "i am going to join in the activity"
-> Lan told me............................
3 you want to help your friend fix the broken chair. you say
-> would you mind if........................
4 he climbed up the tree so that he could get a better view
-> he climbed up the tree in orfer......................
5 it's interested to travel around the world
-> traveling............................
6 "i think Lan eats too much chocolate" said Peter
-> Peter said that.........................
7 i always keep the window open. i want to enjoy the fresh air (using "so as to")
-> i always.......................................
8 could you please give me some information about the English course?
-> would you mind...................
rewrite these sentences, begining with the words provided
1. Millions of tourist visit the Taj Mahal in India every year
-> The Taj Mahal in India.................
2."I'm very pleased to see the rice-cooking contest" Lisa said
-> Lisa said that.............................
3.You are in the theater and you want to take a seat. You say to the other person:
->Do you mind if i....................
4. Jack i learning English. He wants to srudy abroad
-> Jack is learning in order...........
Cho tam giác ABC vuông tại A có AB > AC. Lấy M là một điểm tùy ý trên cạnh BC. Qua M kẻ đường thẳng vuông góc với BC và cắt đoạn thẳng AB tại điểm I, cắt đường thẳng AC tại điểm D.
a) Chứng minh: ∆ABC đồng dạng ∆MDC
b) Chứng minh rằng: BI.BA = BM.BC
c) Chứng minh: góc BAM = ICB. Từ đó chứng minh AB là phân giác của góc MAK với K là giao điểm của CI và BD
d) Cho AB = 8cm, AC = 6cm. Khi AM là đường phân giác trong tam giác ABC hãy tính diện tích tứ giác AMBD