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。
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。
I wasn't looking forward to entering the ninth grade.
我并不期待进入九年级。
This dream came true for me one afternoon in the ninth grade.
九年级的一个下午，我实现了这个梦想。
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。
我是九年级学生。
Jessica and Joyce were best friends in ninth grade.
在九年级时，洁西卡和乔依丝是最好的朋友。
His old high school recently began offering Chinese classes as early as ninth grade.
他的母校最近已经开始为九年级学生开设中文课程了。
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。
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？
Junior high was always a difficult time for me, and the move made my ninth grade year even harder.
对我来说，初中一直是一段艰难的日子，而那次搬家让我的九年级生活更加艰难了。
In the new global economy, students who fail to finish the ninth grade with passing grades in college preparatory coursework are very unlikely to graduate on time and go on to get jobs.
在新的全球经济中，未能完成九年级学业并通过大学预科课程的学生很难按时毕业并找到工作。
In the new global economy, students who fail to finish the ninth grade with passing grades in college preparatory coursework are very unlikely to graduate on time and go on to get jobs.
在新的全球经济中，未能完成九年级学业并通过大学预科课程的学生很难按时毕业并找到工作。
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