Unit 7 The natural world（Grammar）课件 2025-2026学年译林版八年级英语上册

Unit 7 The natural world （Grammar） 年 级：八年级 学 科：英语（译林版） 1 Sentence structures Match the following sentences with correct structures S+V Forests are helpful. The ocean water rises. S+V+O Wetlands prevent floods. S+V+P Revision S V O P sentence Forests are helpful. The ocean water rises. Wetlands prevent floods. 2 Sentence structures Revision 1. S + V 2. S + V + O 3. S + V + P 4. ? 5. ? 3 Sentence structure 4 Presentation The sun gives ocean animals light and heat. V O O two objects 双宾语 what an action is done to or for what is directly affected by the action direct object ( DO) 直接宾语 indirect object ( IO) 间接宾语 S V IO DO The sun gives light and heat ___ ocean animals. verbs that can be used with to: give hand lend offer pass post read sell send show take teach tell write S to DO IO 4 Sentence structure 4 We should build local wildlife a better home. S V IO DO We should build a better home local wildlife. verbs that can be used with for: build buy cook find get leave make order pick prepare save for DO IO Presentation 5 Sentence structure 4 S + V + IO + DO DO to/for IO 1. S+V 2. S+V+O 3. S+V+P 4. ? 5. ? 4. S+V+O+O Presentation rule 6 Sentence structure 5 S V O C The mother bird keeps the eggs safe. They call the ocean the “heart” of the earth. We made the forest the topic of this class. ? the object complement (OC) 宾语补足语 S V DO Presentation (+be) a meaningful sentence describe 描述 The mother bird keeps the eggs safe. They call the ocean the “heart” of the earth. We made the forest the topic of this class. The eggs are safe. The ocean is the “heart” of the earth. The forest is the topic of this class. rule 7 Sentence structure 5 1. S+V 2. S+V+O 3. S+V+P 4. S+V+O+O 5. ? 5. S+V+O+C Presentation 8 Presentation Sentence structure 5 S+V+O+C Forms Examples They name the cat Bob. She painted the wall blue. They consider the idea theirs. I keep the book on the table. He told me to wait. I saw him running. Noun or noun phrase (名词或名词短语) Adjective (形容词) Pronoun (代词) Prepositional phrase (介词短语) Infinitive (不定式) Participle (分词) 9 Sentence structures 4 & 5 4. S+V+O+O 5. S+V+O+C Presentation usually sb. sth. a logical subject-predicate relation 逻辑上的主谓关系 use to/for to exchange positions 互换 add be to make a sentence 组句 10 Sentence structures Presentation adverbial 状语 when where how The volunteer planted 200 trees with a shovel at the desert yesterday. adverbial of place adverbial of time adverbial of manner 11 Identify and match Practice S+V+O+C S+V+O+O S+V+O+O（+A） The weather made the journey to the polar areas hard. They showed us maps of the polar areas. The teacher gave the class a lesson on polar animals yesterday afternoon. 12 Read and write Practice S+V+O+C S+V+O+O S+V+O+C S+V+O+O 13 Many desert plants give animals water, but a few desert plants give food to animals. Little rain and too much sunshine make deserts dry. Write about ecosystems Production S+V +O+C +O+O Deserts Ecosystems Oceans Wetlands Forests . . . Many desert plants give animals water. A few desert plants give food to animals. Little rain makes deserts dry. Too much sunshine makes deserts dry. 14 Conjunctions Presentation Conjunctions What are conjunctions? join 2 or more words 单词 phrases 短语 clauses 从句 Why are conjunctions used? connection How are conjunctions used? w/p+conj.+w/p w/p+ , +w/p +conj.+w/p C + , conj.+ C 15 Conjunctions Revision (1) Each ecosystem has a role to play helps keep the balance between all its members and the greater environment. (2) The water cycle goes on and on, the ocean is just like the “heart” of the earth. (3) Wetlands only cover about 6% of the earth’s land area, they are home to about 40% of the world’s plants and animals. (4) People should protect forests, the weather will get worse. Complete the following sentences in Reading by using and, but, or and so. and so but or 16 Conjunctions Functions Attentions Conjunctions Functions Attentions and but or so Conjunctions Functions Attentions and To join similar or related ideas 并列 Be used in positive sentences 肯定句 but To join ideas that are different 转折 Can’t be used with“though” or“although” or To introduce another possibility 选择 To join two or more ideas in negative sentences 否定句 so To express the result of something 结果 Can’t be used with “because” Conjunctions Presentation How are conjunctions used? 17 Conjunctions Practice (1) Bees are tiny, so they play a big role in helping plants grow. ( ) (2) Frogs can live on land or in water. ( ) (3) Elephants are the largest land animals, but they need a lot of food to survive every day. ( ) (4) Mountains are home to many animals, and they can also affect the weather. ( ) Judge and correct the following sentences. but so 18 Conjunctions Practice Finish Part B1 on page 99. Grasslands can be hot, so animals sit under the shade of trees. Wetlands can have salt water and fresh water. There are forests in Asia and Europe.   Deserts are dry, but they are not always hot. Some rainforest animals don’t like wind or rain. 19 Many desert plants give animals water, but a few desert plants give food to animals. Little rain and too much sunshine make deserts dry. Write about ecosystems Production conjunctions Deserts Ecosystems Oceans Wetlands Forests . . . or so and but Some plants offer shade or shelter to small animals. These make life hard, so animals learn to find what they need. 20 Homework Compulsory homework: 1. Complete and polish your ideas about ecosystems. 2. Review sentence structures and conjunctions. Optional homework: Share your ideas about ecosystems with your classmates and collect their ideas. 21 谢谢观看 Thank you 30119.404 Snowdreams Ñ©Ö®ÃÎ Rhine riverÀ³ÒðºÓ²¨Ó° Other 59322.984 10.Heaven On Earth È˼äÌìÉÏ °àµÃÈðBandari qingyinyue.com?ÇáÒôÀÖÊÀ½ç, track 10 2003 Pop 90436.93 ENG - qingyinyue.com?ÇáÒôÀÖÊÀ½ç $