1.单选题- (共2题)
A.物体发生形变,其重心位置一定改变 |
B.弹力和摩擦力本质上属于电磁相互作用 |
C.轻质细绳的弹力不一定沿绳子的方向 |
D.滑动摩擦力的大小跟物体的重力大小成正比 |
2.选择题- (共5题)
阅读理解
Both of my parents worked full-time when I was a little girl, so my grandmother would stay at our house during the day. We would watch game shows in the living room. Our favorite was The Price is Right. We would call out our answers along with the contestants.
When I got older and started going to school, we couldn't watch our game shows regularly. That was okay with me, though, because the one thing I liked better than watching game shows with my grandmother was helping her bake. Watching her in the kitchen was amazing: she never seemed to need the recipes but everything she made tasted delicious.
At first I would just sit in the kitchen and watch, even though I didn't understand what she was doing. As I got older, she let me help with the easy parts, such as measuring the sugar. The day she let me separate the eggs,I felt like I had found complete pleasure.
At last, my parents decided that I could take care of myself,and my grandmother stopped coming over every day. The love of baking, however, stayed with me. I started baking by myself, and even if the cookies ended up burnt sometimes, more often they turned out pretty well. I tried out new recipes, and whenever I got to a thorny part, I would call my grandmother for advice. Sometimes I would call her just to talk, too. I felt like I could talk to her about anything.
My grandmother passed away ten years ago, but I still think of her every day. Last week, I found a recipe book she made for me. It included her recipes for brownies, cookies, and my favorite, lemon pie. As I looked through the pages, I thought I could hear her voice. She was the one who taught me not just about baking, but about life.
根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内。
阅读理解
Both of my parents worked full-time when I was a little girl, so my grandmother would stay at our house during the day. We would watch game shows in the living room. Our favorite was The Price is Right. We would call out our answers along with the contestants.
When I got older and started going to school, we couldn't watch our game shows regularly. That was okay with me, though, because the one thing I liked better than watching game shows with my grandmother was helping her bake. Watching her in the kitchen was amazing: she never seemed to need the recipes but everything she made tasted delicious.
At first I would just sit in the kitchen and watch, even though I didn't understand what she was doing. As I got older, she let me help with the easy parts, such as measuring the sugar. The day she let me separate the eggs,I felt like I had found complete pleasure.
At last, my parents decided that I could take care of myself,and my grandmother stopped coming over every day. The love of baking, however, stayed with me. I started baking by myself, and even if the cookies ended up burnt sometimes, more often they turned out pretty well. I tried out new recipes, and whenever I got to a thorny part, I would call my grandmother for advice. Sometimes I would call her just to talk, too. I felt like I could talk to her about anything.
My grandmother passed away ten years ago, but I still think of her every day. Last week, I found a recipe book she made for me. It included her recipes for brownies, cookies, and my favorite, lemon pie. As I looked through the pages, I thought I could hear her voice. She was the one who taught me not just about baking, but about life.
根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内。
阅读理解
BRAD GARRETT'S COMEDY CLUB
Category: Comedy
Best known for his role on the Emmy award-winning sitcom Everybody Loves Raymond, Brad Garrett returns to his Vegas roots with his comedy club at the MGM Grand. It is a good place to check out when you need a break from work.
Prices from: $56.40 and up
Age restriction: Must be 21 years of age or older
Show Length: 115 minutes
MAC KING COMEDY MAGIC SHOW
Category: Comedy, Magic
Mac King Comedy Magic Show is different every afternoon, with lots of audience participation. He is willing to make fun of himself instead of his guests in order to make everyone feel welcome and entertained. The afternoon is kid-friendly from start to finish. Still, whether you're eight or 80, you won't be able to figure out King's secrets.
Prices from: $40.90 and up
Age restriction: No age restriction
Show Length: 90 minutes
THE MENTALIST, GERRY MCCAMBRIDGE
Category: Comedy, Magic
Using his skills as a “mentalist”, Gerry McCambridge shocks the crowds as he uses his abilities to predict just what audience members will do next. Anyone who has seen the show has walked away in disbelief, amazed by his unusual power.
Prices from: $34.99 and up
Age restriction: Under 13 will not be admitted into the theater
Show Length: 75 minutes
ROCK OF AGES
Category: Plays & Musicals
The cheerful Rock of Ages brings audiences back to the times of big hair and even bigger bands with 28 popular rock songs from the 80s including “Every Rose Has Its Thorn,” “I Wanna Know What Love Is,” “Here I Go Again,” and more.
Rock of Ages has been nominated for five Tony Awards including Best Musical and Best Direction of a Musical. It also received a Drama League nomination for Distinguished Production for a Musical.
Prices from: $74.00 and up
Age restriction: Must be 15 years of age or older
Show Length: 125 minutes
根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内。
3.多选题- (共1题)
A.4s末的瞬时速度为2.5m/s |
B.4s末的瞬时速度为4m/s |
C.前4s的平均速度为2.5m/s |
D.第4s内的平均速度为4.0m/s |
4.解答题- (共2题)

(1)如果要研究此位选手的速度变化特征,能否把运动员看成质点?
(2)如果选手在AB段的前4s做匀加速直线运动,之后做匀速直线运动,求加速度为多大?
(3)求选手在ABCD段的平均速度。

(1)画出此时的受力分析图,并求弹簧秤的形变量x1和物体与地面间的动摩擦系数μ。
(2)如果弹簧秤突然变为竖直向上拉物体,使物体继续维持原来的匀速直线运动,则此时的弹簧秤形变量x2为多少?物体与地面间的动摩擦系数又为多少?
5.实验题- (共1题)
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【1】题量占比
单选题:(2道)
选择题:(5道)
多选题:(1道)
解答题:(2道)
实验题:(1道)
-
【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:3
7星难题:0
8星难题:3
9星难题:0