Đặt câu hỏi và câu trả lời với Why ...? Because .... .
ex : Minh / go to the dentist ? // have a toothache
=> Why doec Minh go to the dentist ? Because he has a toothache.
1. he / be ccared ? // hate the sound of the drill
=> .....
2. children / often have toothache? // eat lots of candy
=> ......
3. you / be late for class yesterday? // miss the first bus
=> ......
4. her tooth / hurt ? // have a cativy
=> ......
5. they / not come to the meeting last night ? // be busy
=> ......
6. she/ go to the doctor ? // have a headache
=> ......
7. Minh / not sat anything / yesterday ? // be ver nervous
=> ......
8. we / brush our teeth after meals ? // want to have healthy teeth
=> ..............
II. Dùng các từ cho sẵn điền vào hội thoại sau :
How ; were ; filled ; yesterday ; you ; bad ; what ; wasn't
Nam : Hi . Why (1) ___ you absent yesterday , Minh ?
Minh : I had a (2) ____ toothache .
Nam : Oh , did (3) _____ go to the dentist ?
Minh : Yes , I did . I went to the dentist (4) _____.
Nam : (5) ____ was the problem ?
Minh : Well. I had one small cavity , but it (6) ____ serious . The dentist filled the caviy in my tooth .
Nam : (7)____ do you feel now ?
Minh : I feel a lot better after she (8) ____ my tooth .
III. Cho dạng thích hợp của động từ trong ngoặc :
1. He is a ____ person . ( help)
2. My tooth is very ____ now . ( pain )
3. Clean teeth are ____ teeth . ( regular )
5. We are ____ about the final exam . ( worry )
6. She always washes and irons her clothes ____ . ( careful )
7. I'm ____ of hearing the ghost stories . ( scare )
8. The people here are very____. (friend)
IV. Cho dạng động từ thích hợp :
1. She never ( stay ) ____ up late at night .
2. My mother ( plant ) _____ flowers in the garden at the moment .
3. Why ____ you ( leave) _____ the party early last night ?
4. Minh ( go ) ____ to the dentist tomorrow morning .
5. Mozart ( play) _____ the piano when he ( be) _____ three .
6. I ( brush ) _____ my teeth every night , but last night I ( forget) _____ to brush them .
I. Viết lại câu sao cho nghĩa câu không thay đổi
1, I get to work in half an hour .
-> It takes .......................................
2. Do you have a cheaper computer than this?
-> Is this ..........................................
3. How much is this dictionnary ?
-> How much does ........................
4. It isn't important for you to finish the work today .
-> You don't ...................................................
5. There are over eight hundred stamps in Tim's collection.
Tim's collection ......................................................
II Hoàn chỉnh câu
1. How much / cost / mail / letter / USA ?
.........................................................................
2. In / future / we / less work / more money / spend
.................................................................................
3. Brother / engineer / and / work / factory / suburb / capital
....................................................................................................
4. Eat / and / talk / friends / be / most common ways / relax / recess / may countries .
....................................................................................................................
Dùng từ thích họp của động từ cho trong ngoặc để hoàn thành các câu sau :
1. Jackie and Susie are babies . They ( cry) ...... . I can ( hear) ....... them right now . Maybe thay (be) ...... hungry .
2. - COuld someone get me a glass of water ?
- Certainly . I ( get) ....... you one . Would you like some ice in it ?
3. Every day my neighbour ( call ) ......... me on the phone and ( complain) ......... about the weather .
4. you ( want) ....... to go ( shop) ....... with me ? I ( go) ........ to the shoppong mall down town .
5. - Why did you buy this paint ?
- I ( paint) ......... my bedroom tomorrow .
TÌm dạng tích hợp của từ trong ngoặc để hoàn thành các câu sau :
1. The .......... on the left have dictionariess in different languages . ( chelf )
2. Words in a dictionary are in ....... order . ( alphanbet )
3. Math is a very subject at school . ( importance )
4. The ....... an help you find books easily. ( library )
5. Pootball is one of the popular after - school ........ . ( active )
Hãy chọn đáp án thích hợp nhất để hoàng thành những câu sau :
1. Don't let your brothers ......... the present .
A. to see B. seeing C. see
2. Ther are several books by C.K Croner on this ............
A. shelf B. Platfrom C. piece
3 Fiction means .........
A. textbooks B. movies C. novels and short stories
4. - ......... does the plane fly ? - It flies at 600 miles an hour
A. How far B. How fast C. How long
5. All the furniture in the house ......... old - fashioned
A. is B. are C. be
Hoà tan hoàn toàn 27.2g ZnCl2 vào một lượng vừa đủ dung dịch KOH
a) Tính khối lượng kết tủa thu được sau phản ứng
b) Trộn lượng ZnCl2 như trên với 200g dung dịch có chứa 44.8g KOH cho đến khi phản ứng hoàn toàn. Tính nồng độ phần trăm các chất tan có trong dung dịch sau phản ứng