2．Has he found his _______(lose) money.

1．The accident______________(never happen) before.

4．somewhere　 某地,某处.不定副词,与动词搭配前面省略to. 类似还有anywhere 任何地方 nowhere 任何地方都不

eg: 1) She lives some where in this city.______________________________

　 2) You can go anywhere.___________________________________

　 3) He went nowhere yesterday._________________________________

[课堂反馈]

单词适当形式填空

3．stop sb from doing sth 阻止某人做某事。(主动语态中from可以省略，被动语态中from不可以省略)。

Eg：1)Please don’t stop him(from) playing basketball.不要阻止他打篮球

2)He was stopped from playing basketball.有人阻止他打篮球.

练一练 1) 我尽力阻止他在床上看书.____________________________

　　　 2)他被阻止进教室._______________________________

2．protect sb/sth from/against sth 保护,保卫某人某物不受…的侵害.

Eg: 1) I was wearing a fur coat to protect myself from the cold. _______________

2)We sit under the tree in the shade to protect us from the sun. ____________

3)He wore dark glass to protect his eyes from the sun. ___________________

1．a kind of　 一种　 different kinds of 不同种类的　 all kinds of各种各样的 of 后+ 可数名词复数

eg：1)这是一种植物。________________________________

2)海里有不同种类的鱼。_________________________________

3)各种各样的植物都需要水分.________________________________

4)这条街上有不同种类的商店。___________________________________

6．We’ll need our caps to______ us ______ the sun..

[自主探究与点拨]

5．I love the zoo. It has ______ _______ ______ animals.

4．Scientist say that seven-four different_____ of living things go_____ every day.

3．Zoos can help people _____ ______ animals_______ going extinct.