zhè shì wǒ de zhèngjiànzhào.

Yes—this sentence follows a very familiar pattern:

• 这 = this
• 是 = is
• 我的证件照 = my ID photo / document photo

So the structure is basically:

This + is + my + photo

That makes it one of the more straightforward Mandarin sentence patterns for English speakers.

的 marks possession or attribution. In 我的证件照:

• 我 = I / me
• 我的 = my
• 证件照 = ID photo / document photo

So 我的证件照 literally means my document photo.

A good way to think of 的 is that it often works like the English possessive 's or words like my, your, his, her in noun phrases.

Examples:

• 我的书 = my book
• 他的手机 = his phone
• 老师的名字 = the teacher’s name

Normally, no. In this sentence, 的 should be kept.

我的证件照 is the natural possessive form. Without 的, it sounds wrong here.

Mandarin sometimes omits 的 in certain very close, fixed relationships, especially with short expressions, such as:

• 我妈妈 = my mom
• 我朋友 is sometimes heard, but 我的朋友 is also very common

But with 证件照, you should say:

• 这是我的证件照。

证件照 means a photo used for an official document. Depending on context, it can mean:

• ID photo
• passport photo
• visa photo
• document photo

It is made of:

• 证件 = document / certificate / ID
• 照 = photo (in this word)

So 证件照 is not just any photo of you. It specifically means the kind of photo used on formal documents.

Both 这 and 这个 relate to this, but they are used differently.

• 这 can stand directly before 是
• 这个 is usually used before a noun, or sometimes as a pronoun meaning this one

In your sentence, 这 是... = This is... is perfectly natural.

Examples:

• 这是我的证件照。 = This is my ID photo.
• 这个证件照很好。 = This ID photo is good.
• 这个是我的。 = This one is mine.

So in your sentence, 这 is exactly right.

Great question. In standard dictionary form, 这 is zhè.

In actual speech:

• 这 is often pronounced zhè when it stands alone, as in 这是我的证件照
• Before a classifier or measure word, it is often pronounced zhèi, for example:
  • 这个 → often zhèi ge
  • 这本书 → often zhèi běn shū

So in your sentence, zhè is the expected pronunciation.

In this sentence, yes—是 works a lot like is in English.

It links the subject and the noun phrase:

• 这 = subject (this)
• 是 = linking verb (is)
• 我的证件照 = what it is (my ID photo)

So:

这是我的证件照。
= This is my ID photo.

One thing to remember: Mandarin 是 is not used in every situation where English uses to be.

For example:

• 我是老师。 = I am a teacher. ✅
• 我很忙。 = I am busy. ✅
  Not 我是很忙 ❌

So 是 is commonly used before nouns, but not usually before adjectives.

Mandarin often does not use articles the way English does.

English requires things like:

• a photo
• the photo
• my photo

Mandarin usually relies on context instead. In 这是我的证件照, there is no separate word for the or a.

That does not make the sentence incomplete. It is perfectly normal Mandarin.

Context tells you whether the meaning is:

• This is my ID photo
• This is my document photo

Yes. Mandarin pronouns do not change form the way English pronouns do.

So:

• 我 = I / me
• 你 = you
• 他 = he / him
• 她 = she / her

In this sentence, 我 appears inside 我的, so it corresponds to my after adding 的.

This is much simpler than English case changes.

A very common way is to add 吗 at the end:

• 这是你的证件照吗？
  = Is this your ID photo?

You can also ask whose photo it is:

• 这是谁的证件照？
  = Whose ID photo is this?

So the base statement is easy to turn into a yes/no question.

Just put 不 before 是:

• 这不是我的证件照。

Pattern:

• 是 = is
• 不是 = is not

Examples:

• 这是我的书。 = This is my book.
• 这不是我的书。 = This is not my book.

That is the standard negation pattern for 是.

You can say 照片 if you just mean photo, but the meaning becomes less specific.

Compare:

• 这是我的照片。 = This is my photo.
• 这是我的证件照。 = This is my ID photo / document photo.

So if you want to make clear that it is an official document-style photo, 证件照 is better.

The spaces are just for learners.

In normal written Chinese, this sentence is written as:

• 这是我的证件照。

Chinese does not normally put spaces between words the way English does. Learning materials often add spaces to help you see the parts more clearly:

• 这 / 是 / 我 / 的 / 证件照

So the spaced version is a teaching tool, not standard writing.