再见了伟大的祖母（再见了，亲爱的祖母）（We rarely use "伟大的" to describe a person ,for the reason that "伟大的" always mean someone who has done something very great and if a person can be described by this word,it always means that he has done a lot of things which is meaningful  to a lot of people;Here, you'd better say "亲爱的" which means dear.)

昨天，一个糟糕的一天。 (昨天真是糟糕的一天。）
It was a bad day yesterday.

我的曾祖母去世。 （我的曾祖母去世了。）（"了"is necessary here,for it means that things has happened.)
My great-grandmother passed away.

她103岁。 (她享年103岁。）（“享年”is a special word,it can only be used to mean some dead person's age,not living ones,so don't use it randomly.Here,it is suitable to use this word.)
She was 103 years old.

这很旧的。
That's very old. (她真的很长寿。）（“旧的”means a thing, u should not use it to describe a person."长寿"means "live to an old age."

我永远不会成为像她老。哈哈！
I'll never be that old. Ha ha! ( 我肯定活不到她那个岁数。）（This is a difficult sentence to u,just try to understand,if u can't,just let the sentence go. It is a language habit I can hardly explain, it means"I have no possibility to live as long as her".)

我很想念她。
I miss her.

(Sorry to hear that. Besides, ur  great -grandma must be very happy to know that  her great-grandson is missing her.)

练习中文短语 10/11/2011

我现在刷我的牙。 (我在刷牙。）("现在" is always used in the situation while u want to do some things right now. For example, u r studying and ur parents ask u to brush ur teeths,and then u can say "我现在就去刷牙。” It means u will brush ur teeth right now.)

我昨天刷了我的牙。 （我昨天刷牙了。）("了" denotes that u have finished doing something.)

我明天将刷我的牙。 （我明天会刷牙。）（here，"会" means "will", she can also means "can")

我没有刷我的牙。（我没刷牙。）

correct:

sometimes "和" can link two phrase, what I said above is wrong,it just can't link two sentences.

练习中文短语 10/9/2011

大家好，我叫乔纳森，和我来自巴西。 （大家好，我叫乔纳森，我来自巴西。）（“和”was used to link two words,not two phrases or sentences.)

我想周游世界了。( 我想去周游世界。）（If u add a "了" at the end of the sentence,it usually means u have finished doing it. If u use "去", that will mean that u haven't begun to do it.)

 
我的梦想。 (那是我的梦想。）（“我的梦想”is only a phrase,not a sentence."那是" means "that is". "那是我的梦想=that is my dream.)

必须努力学习。（我一定要好好学习。）（I must work hard.) (Though “必须” means “must”，we rarely say this way. " 我" as a subject is necessary here.)

日记10/8/2011 天气

今天非常多云寒冷的。 （今天多云，又是寒冷的一天。）（Today is cloudy, it is still a freezing cold day.)（“非常”can be used before "冷", "多云" can only be said directly.just like "今天多云", we never say "今天非常多云"。

我被冻结。 (我冷死了。）（I feel chilled to the bone.）（“冻结” means some objects freezing，such as water changed to ice cube.)

几乎是冬季。 (这里几乎是冬天。）（It is almost winter here.)("这里" is necessary here.)

我恨冬季。 （我不喜欢冬天。）

我想夏天。（我想念夏天。）（I miss summer.)(“想念=miss”“想=think”“想要=want”）

It seems that u stayed up very late yesterday. Guys,you should have enough sleep.

练习中文短语 10/7/2011

我想买有三个苹果和两个橙子和两个梨。 （我想买三个苹果，两个橙子和两个梨子。）（In this sentence, "橙子" 和"橘子" are two different friuts,but they share the same English word "orange", I guess, you may mean "橘子". Well,I don't know for sure. "梨" 和 "梨子" are both okay. However, if we say "橙子" before, we had better say "梨子"。)

我的铅笔和橡皮都在哪里呢？

 
我想了一杯水。 （我【喝he】了一杯水。）（I drank  a cup of water. Besides, "想" means "want". )

现在非常冷。

Maria和Christina都是坏学生。(Maria和Christina都是坏孩子。）（"学生"means "student/students", u can say "坏学生", but in most time, "学生" is a word usually said by teachers. If u r not a teacher, and want to refer to say "bad guys", u can just say "坏孩子"。

I'm very strict to correct the essay. In fact, sometimes u r right, but it doesn't seem to conform to our codes of languages. So though I correct it,some of ur sentences are right. If I were a techer, I must be a strict one. HAHA.!

练习中文短语

男孩和女孩是聪明的学生。 (男孩和女孩都是聪明的学生。)(The boy and the girl are both clever students.)(If we refer to two objects(ppl) or more,we ususlly put "都" after nouns. "都" sometimes means "both", sometimes means "all".)

我的书在哪里？ (Right!)

他生活在美国了。 (他住在美国。/他在美国生活。）（"生活" is usually used as a noun. while "住" means "live",and is often used as a "verb".)

昨天是阴天。(Right!)

u have a big progress.