3.　　 Only after her mother came to help her for the first few months was she allowed to begin her project. 她母亲头几个月来帮她的忙，这才使得以开始自己的计划。

　　　 这是一个倒装句。正常语气的陈述应当是：She was allowed to begin her project after her mother came to help her for the first few months.　 注意only 引导的状语如放在句首，应使用倒装。如：

　　　 Only then did I understand what she meant. 此时我才明白她的意思。

　　　 Only in this way can we finish it on time.只有靠这种方法，我们才能按时完成任务。

2.　　 But the evening makes it all worthwhile. 但是到傍晚时分我们觉得这一切都是值得的。

worthwhile值得花费精力(时间)的；值得花钱的。如：

Outside the cinema we had a long wait but we thought it was worthwhile since we got the tickets.在电影院外我们排了很久的队，但我们觉得值，因为我们最终搞到了票。

The effort seemed worthwhile.此番努力看来是值得的。

1.　　 This means going back to a place where we left the chimp family sleeping in a tree the night before. 这意味着我们要返回前一天晚上我们离开时黑猩猩睡觉的大树旁。

mean doing与 mean to do的意思不同，前者意为“意味着”，后者意为“打算;想要去做某事”。如：

　　　　 To help them means helping yourself. 帮助他们就是帮助你自己。

　　　　 Sorry, I didn’t mean to be rude to you. 对不起，我没有想对你不礼貌。

　　　 问题：在你学习的过程中，有哪些动词的用法与mean相同？请举例说明。

6. She has built many homes for the wild animals to live in. (　　 )

5. She has spent more than forty years helping people understand her work. (　　 )

4. She supposes that people should not use chimps for entertainment. (　　 )

3. She hopes that chimps can be left in the forest. (　　 )

2. Without any university training, she has achieved what she wanted. (　　 )

1. The chimps show love in their family by feeding or touching each other. (　　 )

1.　　 What did the group do first in the morning? They 　　　　　.

A. went into the forest slowly　　 B. left the chimp family sleeping in a tree

C. observed the family of chimps wake up　　 D. helped people understand the behaviour the chimps

　 2.　 Why did Jane go to Africa to study chimps in the wild? Because she wanted 　　　　　.

　　　 A. to work with them in their own environment

　　　 B. to prove the way people think about chimps was wrong

　　　 C. to discover what chimps eat　　　 D. to observe a chimp family

　 3.　 Jane was permitted to begin her work after 　　　　　.　　

　　　 A. the chimp family woke up　　　 B. she lived in the forest

　　　 C. her mother came to support her　　 D. she arrived at Gombe

　 4.　 The purpose of her study was to 　　　　　.

　　　 A. watch the wild chimps in cages　　　 B. gain a doctor’s degree

　　　 C. understand and respect the lives of chimps　　 D. live in the forest as men can