Bài 1 : 1 tụ điện phẳng có C = 12\(\mu F\) điện môi là không khí . Khoảng cách giữa 2 bản tụ là 0,5 cm . Tích điểm cho tụ dưới hiệu điên thu u = 20 v

a , Tính điện tích của Q

b , Tính e ( cường độ điện trường )

EX 1 : Điền giới từ thích hợp để hoàn thành mỗi câu bên dưới

1 . The competitions will take place ...........................8 a.m and 12 a.m

2 , I arrived ............................the bus stop at 4 in the afternoon .

3 , She took many pictures to show the trip ..............................her parents .

4 , He arrived .................. the bus stop at 4 in the afternoon .

5 , There are 10 students in the class and the teacher is standing .................them .

6 , Mary lives ..............810 Istiklal street .

7 , The course begins ............................8 June and ends ..............................October .

8 , Peter is .........................class 7 B .

9 , Students haven't got any lessons .................the weekends .

10 , Peter goes to school ...........................Monday .........................Friday.

11 , Sheila gets up ................................6.30 every morning.

12 , Mike and his family go for a walk ...................the evenings .

13 , Michael has got a lot of posters and pictures ............................cars .............the wall .........................his room .

14 , I go to school ...................bus , not ..............................foot.

15 , I went to bed ....................midnight and got up .....................................10.000 ..........................the morning .

16 , Jack 's brother is an engineer but he's out of work ....................the moment .

17 , Section 5 is ..............................the first floor of the Prep School .

18 , You mustn't smoke ...........................a bus

19 , Ah met's grandmother died ...............1990 ............................the age of 81

Viết 1 đoạn văn nghị luận 200 chữ bàn về sự vô cảm trong con người ngày nay có sủ dung thao tác lập luận phân tích

Hãy nhận xét về nghệ thuạt miêu tả phủ chúa trịnh trong đoạn trích

Tìm trong đoạn trích vào phủ chúa trịnh những từ ngữ cho thấy thái độ của tác giả đối vs danh lợi văn

Bài 2 : Tìm giá trị lớn nhất , giá trị nhỏ nhất của hàm số sau

a , y = 2sin3x+1

b, y = 1+cos²2x

c , y = sinx+cosx+2

d , y = 3cosx -cos 2x +5

Bài 4 : Hoàn thành các câu sử dụng những từ cho bên dưới . Sử dụng a ?an khi cần thiết .

accident , biscuit , blood , coat , decision , electricity key , letter , moment, music, question , sugar

1 , It wasn't your fault . It was ............................

2 , Listen ! Can you hear ......................?

3 , I couldn't get into the house beacause I didn't have................................................

4, It's very warm today . Why are you wearing ....................................?

5 , Do you take ...........................................in your coffee?

6 , Are you hungry ? Would you like ............................with your coffee ?

7 , Our lives would be very difficult without ................................

8 , I didn't phone them . I wrote .........................instead .

9 , The heart pumps ................................through the body

10 , Excuse me , but can I ask you .........................?

11 , I'm not ready yet . Can you wait ......................................., please ?

12 , We can't delay much longer . We have to make .............................soon

Bài 3 : Mỗi câu sau có 1 lỗi sai . Tìm , gạch chân và sủa lỗi

1 , There are many dirts on the floor ..............................

2 , We want more moneys than yesterday . ................................

3 , He drank two bottles of milks ...................................

4 , Ten pots of inks are needed for our class..............................

5 , He sent me many foods ...................................

6 , many golds are found there .................................

7 , He gave me a great deal of troubles ......................................

8 , Cows eatglasses ..........................................

9 , The rain has left many waters ...................................

10 She didn't have many childs ....................................

11, Mr .Parker has a big houses with five rooms ............................

12 , Miss Hoa is a kind and strong women ..................................

13 , Our classes has forty students ...............................

14 , Her sister studies in an university in the city ................................

15 , A lot of fishes in an university in the city....................................

Bài 2 Viết sang số nhiều những từ trong ngoặc đơn

1 , Study the next theree ( chapter ) .....................................

2 , Can you recommend some good ( book ) ................................?

3 , I had two ( tooth ) ..........................................pulled out the other day .

4 , You can always hear ( echo ) .............................in this mountain .

5 , They are proud of their ( son -in -law) ...............................

6 , Did you raise these ( tomato ) .............................in your garden ?

7 , I think we need two ( radio) ........................

8 , My ( foot) ..........................................really hurt.

9 , The ( roof ) ...........................of these houses are tiled .

10 , Get me two ( loaf) .......................of bread

Bài 1 Điền a / an / 0 vào chỗ trống

1 , There is ........................banana in the bag .

2 , I need ........tea

3 , Are there ...................tomatoes in the fridge ?

4 , We have ..................rice , but we don't have ...........meat .

5 , There's ..................orange on the table .

6 , I'd like ....................aplple juice .

7 , He has ..............TV and .......................computer .

8 , Would you like ...............ice - cream ?

9 , I have ...........................friends in Hue .

10 . Do you have ..............dogs or cats at home .

11 . Would you like ..................cup of tea ?

12 . I would like ..........................cakes , please .

13 , Can I have .................glass of milk ?

14 . Thank you . And ...............box of chocolates would be fine

15 . He should bring ..................Umbrella in case it rains