课件26张PPT。Grammar
(1) (2)Grammar (1)Review of subjectsLook at the sentences and underline the subject in these sentences.1. 98% of the surface is permanently covered in the ice cap.
2. Covering about 14 million square kilometres around the South Pole, it is the fifth largest continent in the world.3. A high mountain range, the Trans-Antarctic range, runs from east to west, cutting the continent in two.
4. It is difficult to imagine a more inhospitable place.
5. Antarctica is full of wildlife, which has adapted to its extreme conditions.6. Only two types of flowering plants are found.
7. There are different types of penguins, flying birds, seals, and whales.
8. Protecting Antarctica from nuclear tests and radioactive waste is very important to this continent.9. What the treaty aims to do is to prevent the commercial and military use of the continent.How many words did you underline in each sentence?
2. Can a subject be a word or a phrase?It varies from sentence to sentence.Yes.Work in pairs and answer the question.3. Can a subject contain a clause?
4. What do the structures which can be used as a subject have in common?Yes.They are all forms that act in the same way as a noun.Check the structures that can be used as subjects.nouns ( ) prepositions ( )
noun phrases ( ) verbs ( )
infinitives ( ) pronouns ( )
numbers ( ) -ing forms ( )
articles ( ) adverbs ( )
noun clauses ( )//
/////Check the true statements.1) The subject of a sentence identifies who or what the sentence is about.
2) Structures which can be used as subjects are all forms that act in the same way as a noun.//3) The verb gives information about the subject in a sentence.
4) The subject agrees in person and number with the verb in a sentence.//The underlined of the sentences are answers to questions.Write the questions.1) In 1895, a Norwegian called Carstens Borchgrevink became the first man to set foot on the Antarctic mainland.Who became the first man to set foot on the Antarctic mainland in 1895?2. The place where Carstens Borchgrevink first set foot is now being studied by scientists from many countries.What is now being studied by scientists from many countries?3) Protecting Antarctica from nuclear tests and radioactive waste is very important to this continent.What is very important to this continent?4) It is inspiring to the international community that countries representing 80% of the world’s population have signed the treaty.What is inspiring to the inter-national community?Grammar (2) Review of verbsUnderline the verb structures in these sentences.1) The Endurance became trapped, and Shackleton and his men watched it sink into the icy sea.2) He and five men would take one of the lifeboats, and sail 800 miles to South Georgia, where there was a permanent camp.
3) He had to walk 36 hours over mountains to reach the camp.
4) The whale hunters at the camp couldn’t believe their eyes when they saw the six men walking down from the mountains.
5) He returned to Elephant Island to rescue the crew he had been forced to abandon.Write the verb structures you underlined into the correct place in the table.rescue/see/watch/take/ reach/believe/abandon/forcebecome/ sail/ walk/ returnhad to /couldn’t /wouldwashadto rescue/to reach/to abandonwalkingreturned/saw/sail(become) trapped/
(had been) forcedComplete the passage with the correct form of the verbs in brackets.China’s New Post Office China ____________ (consider) opening a post office in the Antarctic, Xinhua state news agency ________ (report) a few months ago. is consideringreported An official _______ (visit) China’s Changcheng, or Great Wall research station in Antarctica shortly, ____________ (investigate) whether one is needed.will visitto investigate If so, the office _________ (expect) to open by the end of the year, said Chi Tao of Beijing International Post Office.
The new base _________ (make) it
possible for mail delivered anywhere in the capital _______ (reach) Antarctica, he said. is expectedwill maketo reach Beijing ___ already _____ (make) several trial deliveries.
The mail route, if it is opened, ___
only __ (be) in operation during the
summer, due to the freezing winter weather conditions, Mr Chi _____ (add). hasmade willbeaddedWrite new sentences about yourself. Use the structures of subjects and verbs that you learned in exercises.Homework