New words：

oar [ɔ:r]
n.桨；船桨
v.划行

oarsman [ˈɔrzmən] n. 桨手；划桨人

Sample Sentences：

In dragon boat rowing each person has one oar.
He pulled on the oars to make the boat go faster.

They oared strongly across the finish line.
He oared himself to the other side of the big river.
The oarsman found that the he had to pull against the tide.

New words：

rowboat ['rəubəut] n. 划艇；小船
rowing boat [ˈrəʊɪŋ bəʊt] n. 划艇

Sample Sentences：

He uses a rowboat to go fishing on the lake.
He climbed into the rowing boat and took the oars.
They rented a rowboat and spent the afternoon on the lake.

oar [ɔ:r]n. 桨；船桨

New words：

row [rəu,rau]
n.一行;一排;一列
v.划船;划船送

Sample Sentences：

He rowed the boat across the lake.
The fisherman rowed us back to the shore.

Students stand hand in hand in a row.
A row of children are standing in front of a row of chairs.

New words：

scan [skæn]
v.扫描；审视；浏览；细看
n.浏览；扫描检查；快速查阅

Sample Sentences：

The doctors gave him an brain scan.
The radar scanned the sky for enemy planes.
I scanned the newspaper when I was waiting for the bus.
His mother scanned his face to see if he was telling the truth.

New words：

hint [hint]
n.提示；暗示；迹象；窍门
v.暗示；透露；示意

Sample Sentences：

What are you hinting at?
I thought she was hinting at something, but I let it go.
They hinted to us that they would take our suggestion.

At the first hint of trouble, they left.
He gave me a hint that I was being cheated.
Should I drop a hint (= give a hint ) to Matt?