we are safe. We mustn't bring restricted knives or things to our school because these things may cause serious prob- lems.Do not have a bath in rivers or ponds by ourselves without our parents'permission.And,we should be friendly to others so fighting is strongly banned.Make sure that we should always pay attention to the traffic on our way to school or home.Furthermore,if we meet some emergency,we must call for help from the police or our teachers.What's more,food safety is very important to us.We should not go out to eat fast food.There are also some unsafe food in restaurants,such as unhealthy oil. In a word,following these safety rules above can make us live in peace. 第17课时Book8下Unit1 -、1.B2.D3.A4.C5.E 二、1.B2.D3.A4.C5.D6.A7.B8.C9.D10.A11.B12.A13.C14.B 15.C 三、1.E2.A3.C4.D5.F ,1.because 2.Services 3.improve 4.tired 5.air 6.Other 7.new 8.mistake 9.different 10.crowds 五、One possible version: I have changed a lot！ My life has changed a lot in the last three years.I used to be thin,but now I am a little fatter.I used to have curly hair,but now I have short straight hair,because I am busy with my study.I have made much progress in English,I used to be weak in it.But with my English teacher's help,now I often get good scores on my English exams.What's more,I'm more outgoing than I used to be.I used to be afraid of speaking in front of people.But now I can give a speech in public.I've also made many friends. These are my changes.What about yours 第18课时Book8下Unit2 -、1.C2.D3.E4.B5.A 二、1.C2.A3.B4.D5.B6.A7.C8.A9.D10.C11.B12.D13.B14.C 15.B 1.In Qinghai Province,China.2.About 105 square kilometers.3.Its wonderful views.4.Ever- y July and/or August.In July and/or August.5.To deal with altitude sickness. 1.beautiful 2.what 3.countries 4.to visit 5.but 6.finding 7.hardly 8.many 9.Even 10.better 五，One possible version: Everyone has experiences of exploring.I was very curious about the Forbidden City when I was little. Who lived in it How many rooms are there I asked my parents to buy me some books about its history.I also went online to search for some information about different buildings in the Forbidden City.To learn it better,I even bought a model of it! Exploration has made me creative.It helps me to learn about things I don't know.If we carry on explo- ring.we will learn more and make more progress. 14-第21课时 Book8下 Unit 5 一、补全对话 根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。 A:Hi,Laura.Can you help to prepare for my birthday party next week B:Sorry,Clark.I'm afraid not.1. A:Really You must be very excited about that. B:Yes.2. A:Nervous about what B:I don't know many of the customs and manners in the USA.Would you like to give me some advice A:I'd love to. B:What should I do when I am invited to my friend's home for dinner A:3. It's not polite to arrive late. B:And then A:It's also impolite to say you are full.4. B:What else A:After the meal,don't leave at once,or it seems that you come only for dinner. B:Oh,I got ... ...
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