表示移动的介词：Across、through、into (A2)

从一边到另一边，用 across；从一边进去、从另一边出来，用 through。

across、through：穿过去

• Walk across the street at the crosswalk.
• The light comes through the window.
• 试一试: Lani: Can she swim well? Farid: Yes. Look, she's swimming ___ the pool. 看图，选出 Farid 会说的话。 (into / across / up) 答案: across — 她从游泳池的这一边游到那一边，所以是 across。

into、out of：进去和出来

进去用 into，出来用 out of。

• The children run into the classroom.
• The dog comes out of the water.
• 试一试: Farid: Where's the man with the bread? Lani: There. He's coming ___ the bakery now. 看图，选出 Lani 会说的话。 (out of / into / up) 答案: out of — 他从面包店的门里走出来，所以是 out of。

up、down：往上和往下

往高处去用 up，往低处去用 down。

• He walks up the stairs.
• She walks down the stairs.
• 试一试: Farid: Why is she walking with her bike? Lani: It's hard to ride ___ that hill. 看图，选出 Lani 会说的话。 (up / down / across) 答案: up — 她推着自行车往坡顶走，所以骑车上坡很难：up。

该用哪个？

看你往哪儿走。到另一边：across。进去再出来：through。进去：into。出来：out of。往高处：up。往低处：down。

• across the street, through the window
• into the house, out of the house
• up the stairs, down the stairs
• 试一试: Lani: Where's the dog going? Farid: Outside. It's running ___ the door. 看图，选出 Farid 会说的话。 (up / across / through) 答案: through — 狗从门的这一边进、那一边出，所以是穿过门跑出去：through。