句型转换　请根据要求改写下列句子，每空一词。

1. The sandstorms did great harm to many plants and houses. （改为一般疑问句）

__________ the sandstorms __________ great harm to many plants and houses?

2. Jim has stayed in the college for five years.  (对划线部分提问)

_________ _________ has Jim stayed in the college?

3. The students sweep their classroom after school every day.  (改为被动语态)

Their classroom __________ _________ after school every day.

4. Jack is so young that he can’t understand the problem. （保持句意基本不变）

Jack is not old __________ __________ understand the problem.

5. Sierra said, “The movie is going to be exciting.”    （改为间接引语）

Sierra said _________ the movie _________ going to be exciting.

句型转换

1.We're trying to protect the environment.(对划线部分提问)

　　_________are you trying _________ _________?

2.There used to be a lof cheetahs.（改为反意疑问句）

　　There used to be a lot of cheetahs,______ _________?

3.They made Victor weigh himself just now. （改为被动语态）

　　Victor_____ ______ to weigh himself just now..

4.They weigh about 1,ooo pounds. (对划线部分提问)

　 ______ _______ do they weigh?

5.I think what you said is right. （同义句）

　　I_______ ________you..

6. There's something wrong with the watch .（一般疑问句）

　　________ there ________ wrong with the watch ?

7.I like to go out to play, and I don't like to stay at home.（同义句）

　I prefer to play outside -------  -------stay at home.

句型转换　请根据要求改写下列句子，每空一词。

1. The sandstorms did great harm to many plants and houses. （改为一般疑问句）

__________ the sandstorms __________ great harm to many plants and houses?

2. Jim has stayed in the college for five years.  (对划线部分提问)

_________ _________ has Jim stayed in the college?

3. The students sweep their classroom after school every day.  (改为被动语态)

Their classroom __________ _________ after school every day.

4. Jack is so young that he can’t understand the problem. （保持句意基本不变）

Jack is not old __________ __________ understand the problem.

5. Sierra said, “The movie is going to be exciting.”    （改为间接引语）

Sierra said _________ the movie _________ going to be exciting.

阅读下面短文，根据所给语境，按要求完成下列各题。

　　It may seem strange that ice itself can sometimes protect crops from frost(霜). 1 Some growers actually spray(喷洒) their crops with water on a freezing night. Water freezes quickly on the plants and then a strange thing happens. 2 As long as ice stays wet, it can't get colder than 0℃, a temperature many plants can survive(存活) at. If the ice ever became completely frozen and dry, it might drop many degrees lower, destroying the plants. 3 By continually spraying water on the ice, the growers keep it from going below 0℃ even if the air is much colder. This may be unbelievable, but it saves the plants.

　　This strange kind of ice blanket(毯子) works only on plants that are strong enough to stand the weight of frozen spray. This method is even used to protect banana plants on some Central American Plantations(种植园).

[　　]

A．将1处用被动语态改写。

1．________________________________

B．将2处用if改写。

2．________________________________

C．将3处翻译成汉语。

3．________________________________

D．完成下列句子。

4．The method of using an ice blanket to protect crops from frost is applicable to(适用于)________________