Giáo án Lớp 8

-HS nắm được các t/c của hai tam giác đồng dạng -Hs biết cách tính thể tích hình hộp đã cho, biết cách tính diện tích toàn phần hình lăng trụ -Hs biết sử dụng hệ quả đl Talet tính độ dài đoạn thẳng -Hs biết sử dụng t/c đường phân trong tam giác tính tỉ số đoạn thẳng

4. Dựa vào thông số nào của đĩa xích, bánh răng để tính tỉ số truyền? 5. Quan sát máy ép quay tay Hình 8.7 và cho biết: - Tỉ số truyền của bộ bánh răng này lớn hơn hay nhỏ hơn 1? Vì sao? - Vì sao không dùng bộ truyền xích cho trường hợp này?

Tôi khuyên đồng bào đoàn kết chặt chẽ và rộng rãi. Năm ngón tay cũng có ngón vắn ngón dài. Nhưng vắn dài đều họp nhau lại nơi bàn tay. Trong mấy triệu người, cũng có người thế này thế khác, nhưng thế này hay thế khác đều dòng dõi của tổ tiên ta. Vậy nên ta phải khoan hồ

1. Why are natural disasters destructive ? Because they can weak havoc across large areas and cause loss of life or damage to property 2. What are the first things to do to prepare for natural disasters ? Learn about the risks in your area and read the information ab

1. The water in the lake has been polluted by a ship. 2. Water pollution in the lake has made the fish die. 3. Aquatic plants may also die because of the polluted water. 4. Nick wouldn’t sneeze so much if the air was clean. 5.Nick and Mi will give a talk about water

1. reduce our carbon footprint 2. turn off devices when we’re not using them 3. plant more trees in our neighbourhood 4. avoid using single-use products 5. stop littering

Every year on April 22nd, more than 190 countries celebrate Earth Day to protect the planet. The first Earth Day started in 1970 in America. Today more than 1 billion people participate in Earth Day activities each year, making it one of the largest movements. By taking

– A complex sentence contains one independent clause and at least one dependent clause. Example: The roads were slippery when it rained. independent clause dependent clause – An adverb clause is a dependent clause. – An adverb clause of time shows when something ha

Air Pollution Air pollution is now a serious problem for those living my area. Air pollution may be any industrial waste, gases , dust, fume or odour in harmful amounts which are harmful for man, vegetation, animals or buildings. Air pollution can have some different

1. The water in the lake has been polluted by a ship. 2. Water pollution in the lake has made the fish die. 3. Aquatic plants may also die because of the polluted water. 4. Nick wouldn’t sneeze so much if the air was clean. 5.Nick and Mi will give a talk about water

Example: A: What kind of story is it? B: It’s a fairy tale. A: Who are the main characters? B: Cinderella, her stepsisters, her stepmother, and a prince. A: What’s it about? B: It’s about Cinderella, a kind and beautiful girl who finally gets married to a prince.

1.Peter will come to Viet Nam in spring. 2. Peter wants Duong to recommend somewhere to go. 3.Duong says that Peter should come to Hue and Da Nang. 4. Peter doesn’t want to come to the Hue festival. 5. Duong recommends Peter to see the Hue Festival, the Lim Festival

1.Vocabularies about Ooc boom boc festival: - bamboo archway - green rice flakes - lanterns - coconut - clasped hands - dragon boat race 2. Talking about a festival: -The name of the Festival -When and where it is held. -What activities. 3. Homework: -Talk abou

1.There is a tradition in our countries of having fireworks on New year’s Eve. 2. According to tradition, we have fireworks on New year’s Eve. 3. Following the tradition of having fireworks on new year’s Eve. 4. My neighborhood broke with tradition by not having five

Supply the correct tense and form of the verbs in brackets. 1. Last week, we ____________(have) dinner with a French family. 2. I hate eating with spoon because it____________(cause) trouble when I eat fish. 3. In the past, ao dai ____________(wear) by both men and w

•You should see the doctor regularly •Which dress should I wear today? •The teacher thinks that Jim should study harder. •The boy shouldn’t clim up the wall. •Should I watch TV or go out with friends now? •If Jim is sick, he should stay at home. •How much water sh

Hello Mi, I’m so excited about your trip. It’s going to be amazing! I shouldn’t give you some advice, so you can prepare for Japan. We have lots of customs and it can get a bit confusing for visitors. Firstly you has to take off your shoes when you go inside. You sho

1.In my family, all the traditions of our ancestors are strictly followed. 2.The custom of saying hello to strangers has spread through our community. 3.In our district, its the custom for residents to sweep the streets on Saturday mornings. 4.That filmstrip really

1. What is Mai’s family custom? => It’s eating dinner at 7 p. m sharp. 2. How does Nick feel when Phong talks about one of his family traditions? => He’s surprised. 3. What is the similarity between a custom and a tradition? =>They both refer to doing something tha

Audio script: Five-coloured sticky rice is an important traditional dish of many ethnic minorities in the northern mountainous regions. People call the dish five-coloured sticky rice because it has five colours: red, yellow, green, purple and white. The things that crea

1. Learn by heart: + Vocabulary about ethnology. + ‘How + Adj/Adv’ to show a strong reaction to sth. 2. Talking about ethnic groups. 3. Read and translate the conversation again

1.Using b___ l________is an effective way for communication as long as you understand it. 2.M________ technology makes today’s communication so exciting with not only text but also sound, video, and graphics. 3.A lot of people prefer working f____________ than online.

1.The ___________ were green and they had huge head and bigeyes. 2.The aliens came out of a _________, which looked like a disk. 3.A _____________ is a vehicle used for travelling on the surface of the moon. 4.A moon moves around a ___________and a _________ move aro