神马品牌网教我画人物的过程图片:初三英语....
来源：百度文库 编辑：神马品牌网 时间：2024/04/28 13:34:33
1 Not too long ago,there was no maching ____
(allow)a person to breathe under the sea for a long time.
2 Sharks have been on earthfor many _____ years.
A thousand
B thousands
C thousands of
D thousanded of
(allow)a person to breathe under the sea for a long time.
2 Sharks have been on earthfor many _____ years.
A thousand
B thousands
C thousands of
D thousanded of
给你说说：
1.填allowing
大意：不太久以前，还没有相应的设备可以让人在水下呼吸很长的时间。
这里是现在分词做定语，修饰matching.
2.应选A
大意：鲨鱼已经在地球上生存了几千年。
这里"many"相当于任何一个确切的数字。
固定词组thousands of表示成千的...，形容词性，不可以由many 修饰。
B和D都没有这种用法，有些不伦不类.数词thousand/hundred有两种用法
1.many(任一数字）thousand/hundred 表示多少千/百
2.thousands/hundreds of成千/百的...
thousanded of
allowing, C
allowing
c
allowing
a