One study of ninth-grade students found that 50 percent of friendships among ninth graders changed from one month to the next, signaling striking instability in friendships.
一项对九年级学生的研究发现，在九年级学生中，50%的友谊每个月都会发生变化，这表明友谊极其不稳定。
Given all that's riding on having a successful ninth-grade experience, it pays to explore what can be done to meet the academic, social and emotional challenges of the transition to high school.
考虑到这一切皆依赖于成功的九年级经历，那么探索如何在高中过渡期应对学业、社会和情感方面的挑战将是很有价值的。
My ninth-grade art teacher doesn't give any grade above 94% because, she says, "There's always room for improvement."
我九年级的美术老师不会给分高于94分，因为她说：“总有进步的空间。”
In 2006, Khan made homemade videos to help his ninth-grade cousin with math.
2006年，可汗自己制作视频，来帮助他九年级的表弟学习数学。
In Chicago ninth-grade students were rewarded on a sliding scale for good grades in five courses, including English, maths and science.
在芝加哥，九年级学生们可以因为英语、数学和科学等五门课程的好成绩而获得阶梯式奖励。
Now, this ninth-grade diploma isn't going to help me much in life.
眼下，这个九年级的毕业文凭在我的生活中不会有多大帮助的。
Now, this ninth-grade diploma isn't going to help me much in life .
眼下，这个九年级的毕业文凭在我的生活中不会有多大帮助的。
His ninth-grade English class for boys centers on books that he believes boys find interesting.
他的9年级课程围绕一些他认为男生能从中找到兴趣的书籍。
That it might end up on the syllabus for ninth-grade English was probably close to the last thing Salinger had in mind when he wrote the book.
塞林格写书的时候万万不会想到，《麦田里的守望者》最终会收进九年级的英语课本。
In the U.S., a high school-educated worker is 1.8 times as productive, and a college graduate three times as productive, as someone with a ninth-grade education.
在美国，相对于只接受9年教育的人而言，高中学历的工人生产力是其1.8倍，大学毕业的工人则是其3倍。
The program was a great success that year and an even greater success the next year when the district granted permission to extend the program to include ninth-grade science classes.
我们的预防教育计划那年大获成功，第二年的成绩更加显著，地区当局还批准把我们的教育计划延伸到九年级的科学常识课中去。
To make things worse, I managed to fall right in front of four girls from the ninth grade.
更糟糕的是，我正好摔倒在四个九年级女生的面前。
More than half of students will find their academic performance declining sharply when they enter the ninth grade.
超过一半的学生会发现，当他们进入九年级之后，他们的学习成绩会一落千丈。
The consequences of doing poorly in the ninth grade can impact more than students' ability to find a good job.
在九年级表现不好影响的不仅仅是学生找到好工作的能力。
Students lose many of the friends they turned to for support when they move from the eighth to the ninth grade.
当学生们从八年级升到九年级时，他们失去了许多曾经寻求支持的朋友。
Then, in eighth or ninth grade, I studied astronomy, cosmology, and the origins of the universe.
后来，在八、九年级的时候，我在学习天文学，宇宙学和宇宙的起源。
In ninth grade your idea of a good friend was the person who went to that "cool" party thrown by a senior so you wouldn't wind up being the only freshman there.
在九年级，你心目中的好朋友是那个参加那个由一个高年级生举办的“时髦”舞会使得你不再是舞会上唯一的低年级生的人。
My favorite memory is from when we were in the ninth grade, and we were in the same Social Studies class.
我最深刻的记忆是我们九年级的时候，那时我们在同一个社会研究班级。
Although I never took a math class in college, I always thought I was good at it until I had to give up helping Chelsea with her homework when she was in ninth grade.
尽管上大学时我从没选修过数学，但我总认为自己数学不错，但在切尔西九年级时，有一次因帮不了她做家庭作业才发现事实并非如此。
When I entered ninth grade, I was determined to break out of my shell and challenge my fear of public speaking.
当我进入九年级的时候，我决定突破自我的束缚去挑战我对于公共演讲的恐惧。
For the brothers and sisters in ninth grade, recruit exam is not very distant, facing life's first choice, you should redouble our efforts, study hard, make adequate preparations to meet recruit exam;
对于九年级的哥哥、姐姐们来说，中招考试已并不遥远，面临着人生的第一次选择，你们应该加倍努力，刻苦学习，为迎接中招考试做充足的准备；
Then, of course, in the ninth grade is when you started working for credits to graduate, and we never stayed in one place long enough to get any credits.
到了九年级，你就得为中学毕业给自己积攒学分了，但我们在一个地方待的时间向来都很短，总不足以让我获得学分。
Maybe since he had to listen carefully to my instruction in the "new math", he did not talk as much in the ninth grade as he had in the third.
或许是由于他必需仔细听我用“新数学”法讲课，九年级的他不再像三年级时那样爱讲话了。
Serena said hi to you at a ninth grade birthday party, And you've never forgotten it. How could I?
瑟琳娜在你九年级生日会上和你打过招呼，你从没忘记过。我怎么可能忘记？
And even though he's only in ninth grade, he's a member of the school's Varsity Lacrosse team, playing with older boys.
虽然他才上9年级，但已经是学校长棍球队的队员，可以和年纪大一点的男孩一起比赛。
And even though he's only in ninth grade, he's a member of the school's Varsity Lacrosse team, playing with older boys.
虽然他才上9年级，但已经是学校长棍球队的队员，可以和年纪大一点的男孩一起比赛。
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