As
    1. because >> porque:  As he is my friend, I will help him.
    2. when >> quando:  We watched as the plane took off.

After
    1. later in time >> mais tarde:  After the train left, we went home.

Although or though
    1. in spite of the fact that >> apesar do fato que:  Although it was after midnight, we did not feel tired.

Before
    1. earlier than >> mais cedo que:  I arrived before the stores were open.

For
    1. for, because >> por, porque:  He is happy, for he enjoys his work.

If
    1. on condition that >> na condição que:  If she is here, we will see her.

Lest
    1. for fear that >> por receio que:  I watched closely, lest he make a mistake.
Note the use of the Subjunctive Mood in the clause with lest.

Providing or provided
    1. on condition that >> na condição que:  All will be well, providing you are careful.

Since
    1. from a past time: >> do momento passado:  I have been here since the sun rose.
    2. as, because: >> como, porque: Since you are here, you can help me.

So or so that
    1. consequently: >> por conseguinte:  It was raining, so we did not go out.
    2. in order that:  >> com a finalidade de: I am saving money so I can buy a bicycle.
Note: When used with the meaning in order that, so is usually followed by that in formal English. >> Nota: Quando usando com o significado in order that, so é geralmente seguido de that em inglês formal.
e.g. I am saving money so that I can buy a bicycle.

Supposing
    1. if: >> se:  Supposing that happens, what will you do?

Than
    1. used in comparisons: >> usado em comparação:  He is taller than you are.

Unless
    1. except when, if not: >> exceto quando, se não:   Unless he helps us, we cannot succeed.

Until or till
    1. up to the time when: >> até no momento quando:  I will wait until I hear from you.

Whereas
    1. because: >> porque:  Whereas this is a public building, it is open to everyone.
    2. on the other hand: >> por outro lado:  He is short, whereas you are tall.

Whether
    1. if: >> se: I do not know whether she was invited.

While
    1. at the time when: >> no momento que: While it was snowing, we played cards.
    2. on the other hand: >> por outro lado:  He is rich, while his friend is poor.
    3. although: >> apesar: While I am not an expert, I will do my best.

As if
    1. in a similar way: >> de maneira similar: She talks as if she knows everything.

As long as
    1. if:  >> se: As long as we cooperate, we can finish the work easily.
    2. while:  >> enquanto: He has lived there as long as I have known him.

As soon as
    1. immediately when: >> imediatamente quando: Write to me as soon as you can.

As though
    1. in a similar way: >> de maneira similar: It looks as though there will be a storm.

Even if
    1. in spite of a possibility: >> apesar de uma possibilidade: I am going out even if it rains.

In case
    1. because of a possibility: >> por razão de uma possibilidade: Take a sweater in case it gets cold.

Or else
    1. otherwise: >> de outra maneira: Please be careful, or else you may have an accident.

So as to
    1. in order to: >> a fim de: I hurried so as to be on time.

In a row !!!

Jane: The new year will be here before you know it. 
Mei: This year really went by fast. 
Jane: It seems every year goes by faster. 
Mei: I especially enjoy the new year, though. 
Jane: Why ? 
Mei: We have three holidays in a row.

Explanation : 

If something happens several times in a row, it happens that number of times without a break. If something happens several days in a row, it happens on each of those days.

>> Se alguma coisa acontece várias vezes seguidas, acontece um certo número de vezes sem intervalo. Se alguma coisa acontece vários dias seguidos, acontece em cada um destes dias.

NUMBERS

There's usually more than one way to say or write a large number.

>> Há geralmente mais de uma maneira de dizer ou escrever um número longo.

For example,

1155

can be said in three different ways: >> pode ser dito em três diferentes maneiras:

eleven fifty-five

eleven hundred fifty-five

one thousand one hundred fifty-five

The first usage is typical for addresses and dates.

>> O primeiro uso é típico para endereços e datas.

The second and third usages are interchangeable, for instance when writing out the amount of a check; the second usage, being shorter, is more common; the third usage is more exact and formal.

>> O segundo e terceiro uso são intercambiáveis, por exemplo quando escrevendo por extenso uma quantia em um cheque; o segundo uso, sendo mais curto, é mais comum; o terceiro uso é mais exato e formal.

THE DIFFERENCE BETWEEN GOOD AND WELL

>> A diferença entre GOOD e WELL

Basically good is an adjective and well is an adverb. Even native speakers can mix them up, and these words are especially problematic for international speakers of English.

>> Basicamente good é um adjetivo e well é um advérbio. Mesmo falantes nativos podem contundi-las, e estas palavras são especialmente problemáticas para falantes internacionais do inglês.

For instance:

He is a good puppy, he has been trained well.

What kind of puppy (noun)? A good puppy. (adjective)
How has he been trained (verb)? Well. (adverb)

However, instances of overlap can be confusing.

For example:

I feel good—means I don’t feel bad. >> significa Eu não me sinto mau.

I feel well—means I don’t feel sick. >> significa Eu não me sinto doente.

IN REGARD TO GOOD AND WELL, WHEN YOU ARE MODIFYING A NOUN, GENERALLY CHOOSE GOOD. WHEN YOU ARE MODIFYING A VERB, GENERALLY USE WELL.

O uso de Whereas [ uéreas ] >> enquanto, ao passo que, visto que

1. because:  Whereas this is a public building, it is open to everyone.

>> 1. porque: Visto que este é um edifício público, é aberto a todos.

2. on the other hand:  He is short, whereas you are tall.

>> 2. por outro lado: Ele é baixo, ao passo que você é alto.