Mathx.vn gửi tới các em tài liệu bộ 5 đề kiểm tra giữa kì I - Toán lớp 6.
Ôn thi giữa học kì 1 lớp 7 môn toán: Phần đại số
- Số hữu tỉ là số được viết dưới dạng phân số với a,b , b 0. Tập hợp các số hữu tỉ được kí hiệu là
- Chú ý: Mỗi số hữu tỉ đều có một số đối. Số đối của số hữu tỉ là số hữu tỉ
- Ta có thể so sánh hai số hữu tỉ bất kì bằng cách viết chúng dưới dạng phân số rồi so sánh hai phân số đó.
- Với hai số hữu tỉ a, b bất kì, ta luôn có hoặc a = b hoặc a < b hoặc a > b. Cho ba số hữu tỉ a,b,c. Nếu a < b và b < c thì a < c ( tính chất bắc cầu).
- Trên trục số, nếu a < b thì điểm a nằm trước điểm b.
- Chú ý: Trên trục số, các điểm nằm trước gốc O biểu diễn số hữu tỉ âm (tức số hữu tỉ nhỏ hơn 0); các điêm nằm sau gốc O biểu diễn số hữu tỉ dương (tức số hữu tỉ lớn hơn 0). Số 0 không chỉ là số hữu tỉ dương cũng không là số hữu tỉ âm
- Ta có thể cộng, trừ hai số hữu tỉ bằng cách viết chúng dưới dạng phân số rồi áp dụng quy tắc cộng, trừ phân số. Mỗi số hữu tỉ đều viết được dưới dạng phân số với mẫu dương.
- Phép cộng số hữu tỉ cũng có các tính chất như phép cộng số nguyên: giao hoán, kết hợp và cộng với số 0.
- Quy tắc chuyển vế: Khi chuyển một số hạng từ vế này sang vế kia của một đẳng thức, ta phải đổi dấu số hạng đó.
- Ta có thể nhân, chia hai số hữu tỉ bằng cách viết chúng dưới dạng phân số rồi áp dụng quy tắc nhân, chia phân số. Phép nhân các số hữu tỉ cũng có các tính chất của phép nhân phân số.
I. Nội dung ôn tập giữa kì 1 Tiếng Anh 7
Ôn tập trọng tâm kiến thức ngữ pháp và bài tập Unit 1, 2, 3
Thì hiện tại đơn - Present simple
I was at school last week. He was at school last week.
You/ We/ They/ danh từ số nhiều
I wasn’t at school last week. He wasn’t at school last week.
You/ We/ They/ danh từ số nhiều
They weren’t at school last week.
We weren’t at school last week.
I/ he/ she/ it/ danh từ số ít...?
Was I at school last week? Was he at school last week?
you/ we/ they/ danh từ số nhiều...?
Were they at school last week? Were we at school last week?
Số vô tỉ. Căn bậc hai số học
- Mỗi số thập phân vô hạn không tuần hoàn là biểu diễn thập phân của một số gọi là số vô tỉ.
- Ví dụ: Người ta chứng minh được x2 = 3 => x = 1,732050807... là một số thập phân vô hạn không tuần hoàn. Vậy x chính là một số vô tỉ.
- Căn bậc hai số học của số a không âm là số x không âm sao cho x2 = a. Ta dùng kí hiệu để chỉ căn bậc hai số học của a.
- Một số không âm a có đúng một căn bậc hai số học, số âm không có căn bậc hai số học.
- Ta có với mọi số a không âm.
- Với mọi số a không âm, ta luôn có
II. Bài tập ôn thi giữa học kì 1 Tiếng Anh 7
Exercise 1: Find the word which has a different sound in the part underlined
Exercise 2: Put the verb in brackets in the correct verb form
1. I (see)______ a film this Sunday evening. (you/ go) _____ with me?
2. They (give)_____a party next week.
3. The members of the stamp collectors’ club (meet)______ at the library next Friday.
4. (you/ be)________ free next Sunday.
5. We (live)______ near Nam’s house, but we (not see)_______him very often.
6. Don’t worry. I (go)______fishing with you next Saturday morning.
Exercise 3: Choose the correct answer
1. I love my sister’s paintings because she is very ________ in using colours.
A. carelessB. careC. creativeD. imagine
2. You can share your stamps _____ other collectors ______ a stamp club.
A. with - atB. to - atC. with - inD. to - in
3. Nowadays people _______ hours sitting in front of computers.
4. My family enjoys _____ because we can sell vegetables and flowers _____money.
A. garden - toB. gardening - forC. gardening - withD. garden - of
5. My sister’s hobby is sewing, and she can get the sewing patterns from the ______ magazines.
A. fashionB. cookingC. sportsD. science
6. My sister is very keen on swimming, and she goes swimming three _______a week.
A. timeB. a timeC. timesD. timings
7. Collecting cars is a(n) ________ hobby. It costs a lot of money.
A. interestingB. cheapC. expensiveD. unusual
8. More people are ________ birds today than ever before.
A. seeingB. lookingC. hearingD. watching
9. Do you enjoy ________ board games?
A. playB. to playC. playingD. played
10. Be careful not to drop it; it’s very ________.
A. uniqueB. fragileC. difficult
Exercise 4: Make up the sentences using the words and phrases given
1. Nick/ wash/ hands a lot/ he/ not/ have the flu.
_______________________________________________
2. David/ eat/ lots of junk food/ he/ not do exercise.
_______________________________________________
3. Elena/ should/ sleep more/ she/ try to relax more.
_______________________________________________
4. When you go outside/ wet hais, it/ make you get/ cold/ flu.
_______________________________________________
5. You/ eat/ fresh fish, it/ make you smarter.
_______________________________________________
6. You/ eat/ carrots, it/ help you see at night/ clearly.
Exercise 5: Find the word which has a different sound in the part underlined
Exercise6; Put the words into TWO groups (/ g / and / k /)
Exercise 7. Choose the best answer (A, B, C or D).
1. She blood twenty times so far.
A. donatesB. has donatedC.is donatingD. to donate
2. Volunteers can do general such as clean-up projects or home repair.
A.thingsB.labourC.jobsD.activities
3. We came to the remote village and meals for homeless children.
4. He lectures to foreign tourists about traditional food and games recently.
A. givesB. gaveC. have givenD. has given
5.You should think of the volunteer activities in your community.
A.taking inB.makingC.participatingD.taking part in
A.seenB.beenC.visitedD.gone7. Traditional volunteer activities include money for people in need, cooking and giving food.
A.gettingB.risingC.raisingD.taking
8. They have decided to clean up the neighbourhood it is full of rubbish.
Exercise 8: Choose the word or phrase that best completes each sentence below.
1. We came to the remote village and meals for homeless children.
2. You should think of the volunteer activities in your community.
A. taking inB. taking part inC. participatingD. making
3. Traditional volunteer activities include money for people in need, cooking and giving food.
A. risingB. raisingC. gettingD. taking
4. You can help young children by them to do homework before or after school.
A. doingB. offeringC. teachingD. helping
5. Let’s collect and warm clothes to homeless children in our city.
A. give awayB. give backC. take offD. put on
6. To help people in remote areas, we can transportation, such as giving rides to the elderly.
A. giveB. bringC. provideD. donate
7. Let’s help the sweet children because they have bad .
A. liveB. living conditionsC. ways of lifeD. earnings
8. They have decided to ride to work it is good for their health and the environment.
A. soB. but C. althoughD. because
9. Our school has a programme to children from poor families in Ho Chi Minh City.
A. askB. offerC. tutorD. volunteer
10. Americans the tradition of volunteering and helping one another since the early days of the country.
A. have hadB. has hadC. hadD. to have
11. Volunteers can do general such as clean-up projects or home repair.
A. activitiesB. thingsC. labourD. jobs
12. My brother and I a white tiger already.
A. have seenB. has seenC. seeD. are seeing
13. I blood twice, and presents to sick children in the hospital recently.
A. donate – giveB. donated - gaveC. have donated - have givenD. have donated - gave
14. Volunteering is special me because I can help others.
15. How many novels Charles Dickens ?
A. does – writeB. have – writtenC. did – writtenD. did – write
16. We to Ha Noi several times, but last summer we there by train.
A. flew – wentB. has flown – wentC. have flown - have goneD. have flown – went
17. She blood twenty times so far.
A. donatesB. has donatedC. is donatingD. to donate
18. He lectures to foreign tourists about traditional food and games recently.
A. givesB. gaveC. have givenD. has given
19. They have decided to clean up the neighbourhood it is full of rubbish.
A. soB. butC. althoughD. because
A. goneB. beenC. seenD. visited
21. We are very excited ________ our 2018 Volunteer Program.
22. Toys of Hope provide toys, books and clothing ________ needy and homeless children.
23. Many people donate to the Red Cross, a ________ organization that aids people free of charge.
A. profit-makingB. for-profitC. non-profit D. profitable
24. The river is heavily polluted. They should ________.
A. clean it upB. give it awayC. pick outD. recycle it
Exercise 9. Choose the correct word A, B, C or D for each of the gaps to complete the following text.
Wanting to join community activities, the following steps should be concerned: Firstly, look over your interests: Which activities seem most appealing to you? Were they (1) _________ in one particular category, like children or the environment? If so, that's a good starting place for choosing specific organizations to contact. Second, figure out how much time you can devote to community service: Are you (2) ________ for two hours every week? Are you not free on a regular basis but can volunteer for an entire weekend now and then? Think about (3) _________ as well and how you'll be able to get to different locations. Knowing this information will help you choose which community service projects to pursue, and its helpful information for volunteer coordinators to know.
Next, do some research to see what projects you can do in your community: Check at your school, place of worship, or town hall for more (4) ________ on volunteering. You can also contact the place where you'd like to perform your community service, such as a particular animal shelter or nursing home, and ask if they take volunteers. And the last step: Start volunteering! This list (5) ________ from small projects that you can complete on your own in a few hours, to much larger projects that will take more time and people. If you find a project you can start on your own, do it! If you want to do a project where you'll need more resources or people, check around your community to see if a similar program already exists that you can (5)_________. If not, don't be afraid to start your own! Many organizations welcome new volunteers and community service projects.
1. A. much B. mostly C. many D. most
2. A. available B. busy C. likely D. free
3. A. accommodation B. facility C. service D. transportation
4. A. information B. inform C. informative D. deform
5. A. has B. ranges C. gets D. includes
6. A. take B. be C. join D. have
Exercise 10: Choose the word whose underlined part is pronounced differently from the others
Exercise 11: Choose the correct answer A, B, C or D for each gap to complete the following passage.
Hoa has several hobbies such as knitting, cooking, (11) __________ to music and so on. However, she likes (12) __________ books the most, which makes her comfortable after school. It also helps her to improve her knowledge. Sometimes, she plays sports (13) __________ her sisters in the front yard. In the morning, she usually (14) __________ up early to go cycling. It helps her to (15) __________ her health and enjoy fresh air in the morning.
A. listenB. listensC. listening
Exercise 12: Read the passage. Circle the best answer A, B or C to each of the questions.
Why can some people live to over a hundred, while most of us die much sooner? How long you live depends on where you live. A person who lives in a city in Australia will probably live longer than a person living in a poor part of Africa. So, what can you do to live longer? You can make healthy choices. That means eating healthy foods and getting enough exercise.
Being overweight may make your life shorter because you have a higher chance to have health problems. You can start by changing what you eat. Eat less red meat instead of chicken or fish. Fish is really good for helping you live a longer life. You should eat lots of vegetables, so you can get a lot of the vitamins you need. You also need to get enough exercise. There are different types of exercises. Some exercise is good for the heart. Other types of exercise is good for making you stronger. Lifting weights is a good example. Along with taking care of your body, you also have to take care of your mind. Don’t work too hard. Try to relax and do something fun each day. If you follow these simple rules, you will have a good chance of living a long time.
1. What is the reading text about?
A. How to live a long life.B. You live longer thanks to the place you live.C. Being overweight makes your life shorter.
A. Eating healthy foodsB. Getting enough exerciseC. A and B
3. Why should you eat vegetables?
A. Because vegetables are better for your health than meat.B. Because vegetables are easy to make healthy dishes.C. Because vegetables helps you get a lot of the vitamins you need.
4. How is lifting weights good for you?
A. It makes your heart stronger.B. It makes you stronger.C. It makes you lose weight.
5. Which statement is NOT mentioned in the text?
A. Mental health is also important.B. Fish and chicken are better for your health than red meat.C. One of the secrets to a long life is to eat lots of vegetables instead of doing exercise.
