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问题 选择题

飞机着陆后做匀减速直线运动，初速度是60m/s，加速度的大小为10m/s2，则飞机着陆后7s内的位移大小是（　　）

A．175 m

B．180 m

C．540 m

D．665 m

答案

飞机做匀减速直线运动，已知初速度是60m/s，加速度的大小为10m/s2

则由公式 v=v0+at 得飞机的停止时间：t=

v-v0
a
=
0-60
-10
s=6s，

所以飞机着陆后7s内的位移大小与6s内的位移大小相等，则有 s=v0t+

1
2
at2=60×6+
1
2
×（-10）×62=180m

故选：B

听力题

单词拼写

小题1:In summer vacation, you can have p ______ of time to do what you like.

小题2:Would you mind t__________ for me? I can’t speak French.

小题3:--- “Peter, supper is ready! Come d________ to have supper.”

--- “I’m coming.”

小题4:If you want to learn more about our school, you can visit our w________ to get information on the Internet.

小题5:Winter is coming, we should keep warm, or we will e______ catch cold.

小题6:The school will p________ us with rooms. we needn’t book them by ourselves. But we must bring our own food.

小题7:Kids shouldn’t eat too much c_____ which are bad for their teeth.

小题8:Paris has many fantastic sights i______ the Eiffel Tower and Notre Dame Cathedral.

小题9:Volunteering at the local hospital will be a great e­_______ for me because I want to be a doctor.

小题10:Look! The baby is walking t_____ the river, it’s dangerous.
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选择题

下面一首《沁园春》上阙打乱了顺序，正确的排列顺序是[ ]

①蹭蹬归来，闭门独坐，赢得穷吟诗句清

③夫诗者，皆吾侬平日，愁叹之声

②费十年灯火，读书读史，四方奔走，求利求名

④一曲狂歌，有百余言，说尽一生

A．④①②③

B．③②④①

C．④②①③

D．①④③②
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