(
课件网) 英语 电子教案 七年级 下册 Wonders of nature 2 Unit can describe the features of natural wonders Objectives learn new words about natural wonders practise the pronunciation of /sp/ /st/ /sk/ /str/ /skw/ use comparatives and superlatives Tasks can find out what makes natural wonders beautiful read a travel guide to Zhangye Geopark listen to a conversation about the Great Barrier Reef learn about landforms can discuss experiences with nature and make a recommendation Objectives discuss experiences with different landforms create a video recommending a place to be added to the Natural Wonders of the World Tasks can introduce a natural wonder using persuasive language write about a natural wonder you have visited or plan to visit Study the blue parts and answer the questions. 1 2 3 4 Q1 Which sentences compare two things Q2 Which sentences compare three or more things The mornings and evenings are cooler than the hot days. The mornings and evenings are the coolest times. June to September is the most wonderful time to visit. June to September is a better time to visit than the other months. Sentences 1 and 4. Sentences 2 and 3. Grammar highlights -er and more ... are comparative forms. To compare two things, we use the comparatives with than. To compare three or more things, we use the with the superlatives. The superlative form is -est or most .... In general, we use -est for short words and most ... for longer words. Read the sentences and complete the rules. Add examples of comparative and superlative forms. a b c d e f g The layers of sandstone were lifted higher and higher. The Sahara Desert is the world’s largest desert. The climate became colder and drier. The Great Barrier Reef is the biggest coral reef system in the world. Sunshine after a summer rain will make the colours even more beautiful. Zhangye Geopark is one of the best geoparks in the world. The Grand Canyon’s beauty and size make it one of the most easily recognisable natural wonders on Earth. 1 2 3 4 5 6 7 For one-syllable words: add -er/-est high → _____ → highest For one-syllable words ending in -e: add _____ large → _____ → largest For words ending in -y: drop ___ and add _____ dry → drier → _____ For one-syllable words ending in vowel + consonant: double the consonant and add _____ big → _____ → biggest For words with two or more syllables: add _____ beautiful → more beautiful → _____ Some words are irregular: good → better → best For adverbs ending in -ly: add _____ easily → _____ → most easily higer -r/-st larger y -ier/-iest -er/-est driest bigger more/most most beautiful more/most more easily Circle the correct words to complete the sentences. 1 2 3 4 5 I want to visit Huangguoshu Falls someday. It looks really / more beautiful. The Grand Canyon is amazing. But right now it is crowded / more crowded than last year. The Nile is longer / the longest river in the world. It can take months to trave ... ...
