Why do you do that

　　2）句中的副词even修饰比较级taller, 它没有实际意义，只起加强语气的作用。可用来修饰形容词或副词比较级的词或短语还有much, far, still, rather, a lot, a great, deal, a little, a bit等。例如：

　　It’s a bit cold today. 今天有点冷。

　　His book is far more interesting. 他的书更加有趣。

so that he can catch the first bus.

in order that he can catch the first bus.

so as to catch the first bus.

in order to catch the first bus.

to catch the first bus.

　　本单元重点的语法项目是表示目的的方式，下面将表示目的的几种方式归纳如下。

　　1、动词不定式（包括 so as to，in order to）。

　　2、用so that和 in order that引导目的状语从句，从“句中一般含有情态动词can，could，may，might等。下面以“为了能赶上第一班车，他每天都起得很早”为例。

　　He gets up early every morning

　　以上是用肯定句结构。

　　用否定结构，注意“不定式的否定结构在to前加not; so that/ in order that 只有在主句主语和从句主语一致的情况下可以换成 so as to／in order to；in order to可放于句首，so as to则不可）

so that he can’t miss the first bus.

in order that he can't miss the first bus.

so as not to miss the first bus.

in older not to miss the first bus.

　　so that也可用来引导结果状语从句。在so that引导的结果状语从句中，谓语动词前不用情态动词，主从句间可有逗号隔开。例如：

Everyone said no, so that the plan was dropped. 大家都反对，计划就不再讨论了。

　　cut down, cut in, cut off与cut out的区别

　　cut down意为砍倒，削减，指将树砍倒或裁军

　　to cut down a tree with an axe 用斧头把树砍倒

　　cut in 意为打断，指从语言中打断

　　Don't cut in while I'm talking. 我说话时别插嘴。

　　cut off意为“切断、切下”指切断电源，水源，煤气等。

　　He cut off the gas when a fire breaks out.

　　cut out意为切下，删下，指删掉，剪下文章等。

　　He cut out an article from the newspaper.

教学设计方案 Lesson 17

一、Teaching Aims

　　1. To learn how to plant things from this dialogue.

　　2. To learn to use the following useful words and expressions.

      Burn, so that, stop. . . (from) doing, make. . . do

　　3. To make sure that the students can act out the dialogue publicly and that they can make a similar dialogue.

二、Teaching Procedures

Step 1Revision

1.Check the homework exercises

2.Ask some Ss to read aloud the travel diary

Step 2 Presentation

T: We have many kinds of flowers on our campus which make our school very beautiful. But do you know how to plant flowers?

Possible answers: First dig a hole in the earth. Put some flower seeds in the hole. Cover the hole with some soil and then water it.

Then tell the Ss that in this period we are going to learn how to plant things.

Step 3 listening

1. The Ss to listen to the tape with the books closed.

Ask this question: Where is Mum sowing cabbage?

2. Allow the Ss to listen to the tape again. Ask the following questions.

1) Why does Mum keep the box in the shade?

Answer: Mum keeps the box in the shade so that the sun doesn’t burn the little plants.

2) What will make the cabbage plants grow big and strong?

Answer: The powder

Step 4 Reading

Ask them to try to match the pictures with the steps.
 

1. Put some soil in the box.

2. Sow the seeds and cover them with more soil.

3. Keep the box in the shade.

4. Put the plants in the earth and water them.

5. Plant them in rows in the field.

6. Feed them with some powder.

Step 5 Practice

1. Let the Ss read the dialogue twice in pairs.

2. Ask the Ss to make a similar dialogue with the following topics.

 　　How to plant tomatoes.　　         How to plant potatoes.

　　 How to plant peanuts.         　　 How to plant sunflowers.

　　 How to plant cucumbers       　　 How to plant eggplants.

Step 6 Language points

T gives the Ss the language points and further explains them

cabbage seed, so that, stop the soil from getting too dry, like you feed chickens

Step 7 Workbook

1. Do Part 2. on Page 17 in the textbook. Here we will deal with the grammar: to express one’s purpose with the phrase “to do”.

Step 8 Summary and further practice

1. Summary