too to . ; not enough to
The snake is too dangerous to hold. The boy is not brave enough to hold it . too to do 和 not enough to do 并让学生明确这两个短语的中文意思是“太 而不能 ”。
2.The girl / short / get on the elephant. / she / not / tall .
温馨港湾
3.The elephant / heavy / carry. / The boy / not strong.
4.The elephant / fat / go through the gate. / The gate / not wide.
5.The monkey / far away / get the bananas. / The bananas / not near.
6.The cat/ slow/ catch the bird./ It / cannot run/ fast .
Step 2 抛砖引玉
The snake is too dangerous to hold. The boy is not brave enough to hold it . (改为同义句 )
The snake is so dangerous that the boy _________ hold it.
学生在理解的基础上探求答案，在探求答案的过程中获得新知。
板书 so that + 含有超声波清洁 can’t/ couldn ’dot 的否定句等同于 too to do ; not enough to do
同步操练： 1. The girl is too short to get on the elephant. (改为同义句 )
开车起步
①The girl _________________________ to get on the elephant.
② The girl ____________that she ___________ get on the
elephant.
③The elephant is so tall__ that the girl can’韩信大将军get on it .
④The elephant _________ enough ______ the girl ______ get on.
⑤The elephant __________tall ______ the girl _______ get on.
完成句子后求异：
①与原句比较后发现：由秩序册 too to do 结构转换为 not enough to do 结构时，要找到句中形容词的反义词。
③ 与 ④ 比较后发现： so that + 含有 can’ t / couldn 的’否tdo定句结构的句子，若主从句的主语不一致时，改写为 too to do 或 not enough to do 结 构
如何获得q币
时, 要在不定式 to do 前添 for sb ，若主从句的主语一致， 则不须添 for sb。如：
He is so young that hecan’ t go to school改剪纸简单.(为同义句 ) He too young to go to school .
He not old enough to go to school.
观察 ④ 、⑤ 两句可得：在 too to do 或 not enough to do 的 句子中，
若 to do 的宾语与句子的主语相一致时，须省略
it 。
发散思维 ：若把句子改
为过去时，应该怎么办？
1.The girl was too short to get on the elephant. (改为同义句 ) The elephant was so tall__that the girl couldn ’get on it .
2. He ran very fast. He couldn君子之交淡如水 ’ t stop.
He ran too fast to stop.
