探究点1 辨析arrive,get与reach

$\mathrm{到达}\begin{cases}\mathrm{不及物动词}\begin{cases}\mathrm{arrive}\begin{cases}\mathrm{arrive in Beijing(in后跟大地点)} \\\mathrm{arrive at the train station(at后跟小地点)}\end{cases} \\\mathrm{get to +大、小地点(有to)}\end{cases} \\\mathrm{及物动词:reach +大、小地点}\end{cases}$
He arrived in Beijing at 3:00 p.m. yesterday.
他昨天下午三点到达北京。
We got to the park by bus.
我们坐公交车到了公园。
When do you reach school?
你什么时候到达学校?
[提示]当arrive、get后接地点副词here、there、home时,副词前不加介词。
How did you get there?
你怎么到的那里?
情境应用
1. It takes me about twenty minutes to school by bus every day.
2. The early bus at the bus stop at 7 o'clock.
3. I will call them when I the airport.

1. to get
2. arrives
3. reach

探究点2 treat的用法
treat作动词,意为"对待;招待;治疗"。
We should treat animals with kindness.
我们应该善待动物。
[知识拓展]treat作名词,意为"款待"。
Her friendly treat made us very happy.
她的友好款待使我们感到非常高兴。
情境应用
1. He others nicely. (treat)
2. Don't worry about it. It's . (我请客)

1. treats
2. my treat

情境应用
1. Ms Gao is a good teacher. She always talks to others . (polite)
2. It is to speak when eating things. (polite)
3. The monkeys begin to dislike the tourists(游客)and treat them ______ . (polite)
4. Please to help the person who needs help on the bus. (有礼貌的)

1. politely
2. impolite
3. impolitely
4. be polite

探究点4 if引导的条件状语从句
if是连词,意为"如果",引导条件状语从句。主句是祈使句,if从句要用一般现在时。
Put up your hand if you want to ask your teacher a question. 如果你想问你的老师一个问题,请举手。
[知识拓展]
1. 主句用一般将来时,if从句用一般现在时。
If you invite him, he will come.
如果你邀请他,他会来的。
2. 主句含有情态动词may、might、can、must、should等时,if从句用一般现在时。
If you want to get good grades, you must study hard.
如果你想取得好成绩,你必须努力学习。
情境应用
1. If you a taxi, you'll miss your train. (not take)
2. We out if it is sunny tomorrow. (go)

1. don't take
2. will go