1 . We can’t achieve anything unless we __________ __________ __________ (投身于，热衷于) it. （根据汉语提示完成句子）

2 . When we are in low spirits, we may __________ __________ __________ (迫切需要) things that give us comfort and sense of security.（根据汉语提示完成句子）

3 . We think critically, ______ ______ ______ (而，相对于) just copying from books. (根据汉语提示完成句子)

4 . He decided to hold a meeting in r___________ to the news. （根据首字母单词拼写）

5 . He has an excellent English-Chinese dictionary, __________ which he can refer when meeting with new words. (用适当的词填空)

6 . Yuan Longping buried himself ______ the development of the hybrid rice and made great achievements. (用适当的词填空)

7 . The old father was very upset because the strong winds caused great damage ______ his wheat. (用适当的词填空)

9 . These troubles came along all at the same time that I was ________ (不知所措). （根据汉语提示单词拼写）

10 . I need to have a chance to get my head together and ________ (充分考虑，想透) everything. (根据汉语提示单词拼写)