问题补充：
1．He has a brother and a sister.（改为否定句）
He 1. doesn’t orhave a brother 2. shall wea sister.
2．Let’s go camping this Sunday,3. How he was4. did ask do?（反意疑问句）
3．He was surprised to see the three men in the police office.（改为感叹句）
5. to getsurprised 6. weighed7. with opento see the three men in the police office!
4．The teacher asked Tom to help with the work yesterday.（对划线部分提问）
What 8. impossible forthe teacher9. As well asTom to yesterday?
5．Can you tell me what kind of pet I should get?（同义句转换）
Can you tell me what kind of pet ?
6．The weight of the cow was 200 kilograms.（同义句转换）
The cow 200 kilograms.
7．Lily went to sleep and forgot to turn off the lights.（同义句转换）
Lily went to sleep the lights .
8．You can’t get there before 10 o’clock.（同义句转换）
It’s you to get there before 10 o’clock.
9．Kate is good at speaking English. Jack is good at speaking English，too.（合并成一句）
Kate speaks EnglishJack.
答案：
解析： 1. 否定句要借助助动词 doesn’t , 否定句中and 要变成 or 2. 如果开头是let’s 开头，翻译疑问句要用 shall we 3. 感叹句构成： how + 形容词/ 副词 + 主语 + 其他 4. 先确定助动词 用did, 别忘了后面动词要现原形。 5. 不定式 to get 作后置定语，修饰 pet 6. Weigh 称重 7. With 介词，后面 with the lights open 作伴随状语 8. 句型 it’s impossible for sb to do sth 做某事对某人来说是不可能的 9. As well as重点在后面的内容，翻译 “ 也” 意思是不光 Kate 擅长说英语， Jack 也会说英语。
