"If", condition, result. Present simple, present simple unless we're using the imperative."You will go to Chagford if you visit Devon." “If”,条件,结果。一般现在时,基本是一般现在时除非我们用祈使语气。“如果你要拜访 Devon,你要去 Chagford
Zero conditional When we talk about things that are generally or always true, we can use: If/When/Unless plus a present form PLUS present simple or imperative If he gets there before me, ask him to wait. When you fly budget airline, you have to pay for your drinks and snacks. Unless...
The zero conditional has two clauses: theconditional clauseand themain clause. Conditional clause This clause describes the action or condition that makes the main clause true. We can use "when" or "if": "when": it will happen "When I go on holiday ..." (I will have a holiday – ...
If I eat two hamburgers, I will be full. Conditionals in English grammar are very confusing! Learn what First Conditionals and Zero Conditionals are, when we use them, and how we use them correctly! Ill also teach you the differences between them, so you
Unless means if not. We use unless in conditional sentences instead of if not. 除非意味着如果不是。我们在条件句中使用unless而不是if not。How to Use Wish in English 英语中如何使用Wish Learn How to Use Wish in English. 学习如何在英语中使用Wish。When we want to express a wish/desire in ...
Unless is always used in the conditional part of the sentence (the if clause) and not used in the result part of the sentence (the main clause). For example:Unless you have 512 Meg of RAM, (condition) you can’t install DAW software (result).Note: when the main clause (the condition...
零时态条件句 零时态-一时态-二时态条件句 We use the zero conditional when the result of a condition is always true. The time is not important because it is always a fact 表示客观真理,理所当然的事情 The structure is if + present simple + present simple 从句一般现在。主句一般现在 ...
First conditional: If you sit in the sun, you'll get burned. (here I'm talking about what will happen today, another day might be different) WHEN/AS SOON AS/UNLESS It is possible to use other words instead of if in first conditional sentences: 11 ALTERNATIVE TO “IF” WHY USE...
Another way to make first conditional sentences is to use ‘unless’ which means ‘only if’ or ‘except’. As with ‘if’, the word ‘unless’ can never be followed by ‘will’ but only by the present simple. For example: Unlessyouhurry up, you won’t catch the bus. ...
Absolute convergence whenR(c−a−b)>0; (3) Conditional convergence when−1<R(c−a−b)≤0. Particularly, the behavior of Gaussian hypergeometric functionF(a,b;c;x)nearx=1satisfies the following properties: c>a+b F(a,b;c;1−)=Γ(c)Γ(c−a−b)Γ(c−a)Γ(c−b...