concern

【语境展示】阅读下面句子，注意并归纳concern的意思及用法。

1. Some scientists wrote letters to the newspaper editors, showing their greatest concern for / about / over the problem.

2. The Prime Minister expressed his concern over the homeless people.

3. There is no cause for concern; the storm was not too serious.

4. Martin's one concern was to win the war.

5. The boy's poor health concerned his parents.

6. Anything that concerns Gordon interests me.

【自我归纳】

★concern作名词时，意为：① ________（常与介词for / about / over连用）（句1）；②关心，关怀（句2）；③关注，焦急，忧虑（句3）；④关心的事（句4）。

★concern作动词时，意为：①让（某人）担忧（句5）；②关系到，与......有关（句6）。

【拓展】concerned adj. 担心的，忧虑的，关注的，感兴趣的

【即学即练】写出下面句子中concern的词性及中文释义。

1. The news concerns your sister.

________ ________

2. There's a lot of public concern about the rising prices. ________ ________

appetite

【语境展示】阅读下面句子，注意并归纳appetite的意思及用法。

1. The walk has given me a good appetite.

2. Sue has an amazing appetite for knowledge.

【自我归纳】appetite作名词，意为：①________（句1）；②欲望，爱好（常与介词for连用）（句2）。

【即学即练】翻译下面句子。

1. 我生病时完全失去了食欲。

__________________________________________

2. 十岁的男孩彼得非常喜欢古典音乐。

__________________________________________