重点词汇解析
1. stomach n. 肚子，胃，复数为stomachs。肚子疼：stomachache构成短语有：
have a pain in the stomach 胃(腹)疼
lie on one’s stomach 俯卧
have the stomach for… 对……有兴趣
turn one’s stomach 使……恶心
on an empty/a full stomach 空着肚子/吃饱
2. bar n.
(1)条状物；棒
a bar of soap 一条肥皂 a bar of chocolate 一条巧克力 a bar of gold一根金条
(2)酒吧 a coffee bar
(3)固定短语：behind bars 在狱中
3. diet n.
(1)正常饮食 a balanced diet 均衡的饮食 a diet of potatoes 土豆食品
(2)饮食限制 go on a diet=be on a diet 节食, 节食
No sugar in my coffee; I’m dieting.
4. disease n. 疾病 a serious disease of the liver 严重的肝病
diseased adj. 有病的 a diseased plant病态的植物
辨析：illness, disease
illness：很少指具体疾病，只表示抽象的疾病和生病的状态。
disease: 指可以染上和传染他人的疾病。
e. g. Several children are away from school because of illness.几个孩子因生病没上学。
He has a rare heart disease.他得了一种罕见的心脏病。
5. probably 与 possibly比较
(1)probably 极有可能, 有几分根据的猜测; 比possibly所指的可能性大些。
e. g. He is working hard and clever as well many people can help him. He will probably win.他工作努力，人也聪明；很多人愿意帮助他。他极有可能取胜。
(2)possibly 可能地。表示客观上潜在的可能性，可能性比probably小，经常与情态动词can 或may 连用。
e. g. She may possibly be the greatest writer of her generation.
她或许是她那一代人中最伟大的作家。
6. promise v. &n. 允诺；答应
动词用法：后接名词或代词、不定式、that 从句
(1)They promised an immediate reply. 他们答应立刻回复。
(2)He promised me to be here at six o’clock.=He promised me that he would be here at six o’clock.. 他答应我他将在六点在这里等我。
(3)I promised you not to say that. 我答应你不说那件事。
(4)It promises to be warm this afternoon. 今天下午有望转暖。
(5)He is a promising boy. 他是一个有前途的男孩。
名词用法：
make a promise 许下诺言 give a promise 许下诺言
keep a promise 信守诺言 carry out a promise 履行诺言
break a promise违背诺言
7. brain n.
(1)用作不可数名词，大脑
The brain is the centre of higher nervous activity.大脑是高等神经活动的中枢。
(2)用作可数名词brains，智力，头脑
She has a good brain. =She has good brains.她很聪明。
8. advise, suggest用法
(1)advise sb. to do sth. 建议某人做某事 advise doing sth. 建议做某事。
advise that…(should) + 动词原形
I advise you to leave now. 我建议你现在就离开。
I advise waiting till the proper time. 我建议等到适当时机(才行动)。
We advise that steps (should) be taken at once. 我们建议立即采取措施。
(2)suggest建议，其句型为
suggest doing sth. 建议做某事
suggest one’s doing sth. =suggest sb. doing建议某人去做某事
suggest that…(should) + 动词原形
We suggested that the old museum(should)be rebuilt as soon as possible.
我们建议那座旧博物馆应该尽早重修。
9．diet与food的区别：
diet指的是习惯的食物或规定的食物，特指维持健康的定量或定质的食物。
food指能吃喝的具有营养的东西。例如：
The doctor has ordered me a special diet.医生给我安排了特殊的饮食。
I like a simple diet best.我最喜欢粗茶淡饭。
We must have food to eat and clothes to wear.我们必须有食物吃，有衣服穿。
The patient must not go without food, but he must have a diet without sugar.
这个病人不可不吃东西，但要吃不含糖的饮食。