F. 由下列词项引导的条件从句

if, unless, as long as, assuming (that), given (that), in case, in the event that, on condition (that), on the assumption that, provided (that), providing (that), supposing (that), with the proviso that

1. Unless you have a valid passport, I cannot book your ticket. (CGEL) 如果你没有有效护照，我就不能给你订票。

2. As long as you're happy, it doesn't matter what you do. (Chambers) 只要你快乐，你做什

么,都没有关系。

3. Assuming it rains tomorrow, what shall we do? (LDCE) 如果明天下雨, 我们怎么办呢?

4. Given that $\mathrm{<span\; class="latin-run"><span\; class="latin-run">x</span></span>}=\mathrm{<span\; class="latin-run"><span\; class="latin-run">y</span></span>}$x = y , then $\mathrm{<span\; class="latin-run"><span\; class="latin-run">n</span></span>}(\mathrm{<span\; class="latin-run"><span\; class="latin-run">x</span></span>}+\mathrm{<span\; class="latin-run"><span\; class="latin-run">a</span></span>})=\mathrm{<span\; class="latin-run"><span\; class="latin-run">n</span></span>}(\mathrm{<span\; class="latin-run"><span\; class="latin-run">y</span></span>}+\mathrm{<span\; class="latin-run"><span\; class="latin-run">a</span></span>})$n(x + a) = n(y + a) must also be true. (CGEL) 如果 $\mathrm{<span\; class="latin-run"><span\; class="latin-run">x</span></span>}=\mathrm{<span\; class="latin-run"><span\; class="latin-run">y</span></span>}$x = y , 则 $\mathrm{<span\; class="latin-run"><span\; class="latin-run">n</span></span>}(\mathrm{<span\; class="latin-run"><span\; class="latin-run">x</span></span>}+\mathrm{<span\; class="latin-run"><span\; class="latin-run">a</span></span>})=\mathrm{<span\; class="latin-run"><span\; class="latin-run">n</span></span>}(\mathrm{<span\; class="latin-run"><span\; class="latin-run">y</span></span>}+\mathrm{<span\; class="latin-run"><span\; class="latin-run">a</span></span>})$n(x + a) = n(y + a) 也一定是正确的。

5. In case I forget, please remind me about it. (ALD) 万一我忘了,请提醒我。

6. In the event that our team wins, there will be a celebration. (DAI) 如果我们队胜了, 将举行庆祝会。

7. I'll come on condition that John is invited, too. (LDCE) 如果约翰也被邀请的话,我就去。

8. Provided (that) there is no opposition, we shall hold the meeting here. (LDCE) 假如没有人反对, 我们将在这里举行会议。

9. He will do the work providing you pay him. (Evans) 如果你付给他钱,他就干这个活儿。

10. Supposing (that) she doesn't come, what shall we do? (Chambers) 如果她不来, 我们怎么办?

11. I agree to your plan, with the proviso that I shall be informed of its progress at regular intervals. (PAP) 假如你定期向我报告进展情况,我就同意你的计划。