【倍速课时学练】2015开学备课（冀教版）八年级英语下册教学课件：Lesson 6.pptVIP

倍速课时学练 倍速课时学练 low below zero until groundhog bush adj. 低的；浅的 prep.adv. 低于；在……下面 num. 零 conj. 直到……为止 n. 土拨鼠 n. 灌木 Words and expressions objectives To understand the article To use the words correctly: low, as…as, below zero, not…until… Have you seen a groundhog? Let’s enjoy the video. Well, let’s come to the lesson. Read the lesson and answer the questions. 1. Why does Jenny think the weather in Edmonton is a little wild? Because the temperature is low and there are not flowers. 2. What activities do people in Canada do in spring? They play “snow” soccer, and many families drive to the countryside on weekends, and go to a sugar bush and make syrup. 3. Why does Jenny love spring? She loves spring because of all the fun activities and summer follows it. 1. The temperature can be as low as -15℃. as...as...意为“和……一样”，表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。其基本结构为：”as+ adj./ adv. +as”。例如： (1) This film is as interesting as that one. 这部电影和那部电影一样有趣。 (2) Your pen writes as smoothly as mine. 你的钢笔书写起来和我的一样流畅。 其否定式为“not as/so +adj./ adv. +as”。例如： This dictionary is not as/so useful as you think. 这本字典不如你想象的那样有用。 若有修饰成分，如twice, three times, half, a quarter等，则须置于第一个as之前。例如： Your bag is twice as expensive as mine. 你的袋子比我的贵一倍。 2. We probably won’t see any flowers until May or June! until“直到”，表示某一种行为一直持续到某一时间。用在肯定句中，句子的谓语动词必须是可延续性的。 not...until“直到……才”表示直到某一时间，某一行为才发生，之前该行为并没有发生。用在否定句中，主句中的谓语可以是延续性的也可以是短暂性动词。? 1. I studied English until 9 o’clock last night.? 我咋晚学英语一直学到9点钟。 (表示9点前一直在学)? 2. I did not study English until 9 o’clock last night.? 我咋晚直到9点钟才学英语。 (表示9点才开始学)? 3. I waited for five hours until it was dark. I had to give it up.? 4. I didn’t go to sleep until 11 o’clock. not until 还可以用于强调句中，也可以放在句首，句子要采用部分倒装。?5. It was not until he came back that I went to sleep.?Not until he came back did I go to sleep.? 3. We had to wear our jackets and boots… have to 是一个比较特殊的情态短语，虽然也具有情态动词的功能，但却与其他的情态动词不同。它有人称、数和时态的变化，其否定式和疑问式的构成方式也与情态动词不一样。同学们在使用hav