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Similarity
1. Start from a single word to several words then to sentences
2. vocabulary is the key
3. influenced by the environment
Difference
1. learning environment is different
2. age. learning L1 at an earlier age.

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Similarly

1. Sequence: simple — complex

2. First: Listening and reading (input) — Then: speaking and writing (output)

3. Both learn:  Spelling, pronunciation and vocabulary

Difference:

1.Grammar: L1 later

L2 from the start

2. Method of memorizing:
L2 Rote + words + objects

L1 Recognize & use and words

3.Disturbed by L1, interference

——Accent, how to pronounce

# data[].attributes.body
There are similirities:
Aquisition sequence: words.sonds. sentences . paragraph.
When we learn the L1 and L2, we learn the words first and then make sentences and then have our own iders to express ourselves.
Differences:
1. Different languages in different stage
L2 is not easy to learn as our L1
2.pronunation\spelling\structure are different
3.  L1 usually is learned from birth, mostly taught by parents first, but L2 mostly is learned from school, taught by teachers.
4. Learning content is different: L1 knows(listening) the object before you learn the concept, L2: Match the newly learned word to the object you already know

# data[].attributes.body
same: both have the similar learning process and stages (learning basic words, collocations and be used in various situations, grammar )
difference:  they have the different language system.
L1 can be taught at home, L2 can be learned at school
L1 can be learned directly and L2 can be linked to the L1

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Similarity:

1. The environment is an essential factor in improving language skills.

Differences:

1. Compared with L1 learners, the lack of environmental influence of a language can be a problem for L2 learners.

2. L1 learners learn their first language naturally. However, L2 learners learn languages consciouslly.

3. L1 learners learn a language from scratch. L2 learners usually learn the second or more languages based on their first language.

# data[].attributes.body
Similarities:
Both L1 and L2 start with learning vowels and simple words.
It takes times to get familiar with vocabulary, then making short sentences with the words we already know.
We have someone to guide us when learning.

Differences:
Different language environments.
L1 is taught by parents at first, L2 is taught by teachers at school mostly.
L1 is learnt through speaking, whether L2 is through reading and writing mostly.

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Similarities:
1. talking to others as much as possible
2. from the easy degree to the difficult degree
3. vocabulary
4. grammar
5. pronunciation
6. writing
Differences:
1. L1: productive learning, L2: receptive learning
2. L1 usually is gained through childhood, L2 mostly is learned from school
3. L1: acquisition, L2: studying

# data[].attributes.body
Similarities:
Both L1 and L2 are learned  receptively first and then productively.
It would be helpful to be exposed to the language environment to learn more knowledge of the language both in L1 and L2.
We have to study the written forms of the language both in L1 and L2.

Differences:
We don't experience pre-linguistic stages and other early childhood stages when learning L2.
We don't have 'study' the first language like we do for L2, there's a natural acquisition procedure. We do have to study the reading and writing though. We learn L2 'on purpose' somehow while L1 spontaneously. We need to put effort and time on studying the vocabulary, grammar, syntax, irregularity, etc.

# data[].attributes.body
Similarities: Language learning environment , imitation, communication and practice,  based on vocabulary, grammar and punctuation

Difference:
L2 is mainly translated to L1 because L1 is more outweigh and predominant.
Most likely interfered by L1 when learning second language.
Accent is somehow unavoidable.

# data[].attributes.headline
TASK: How do you think L1 learning and L2 learning are the same? How are they different? 

# data[].attributes.subject
TASK: How do you think L1 learning and L2 learning are the same? How are they different? 