BOAO FORUM FOR Asia Annual conference 2018 lasted April 8 to April 11.A. on B. to C. from C [解析]句意:2018博鳌亚洲论坛从4月8号持续到4月11号.根据from---to--- 从---到---,故选C 题目和参考答案——青夏教育精英家教网—

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BOAO FORUM FOR Asia Annual conference 2018(博鳌亚洲论坛) lasted___April 8 to April 11.

A. on B. to C. from

C 【解析】句意：2018博鳌亚洲论坛从4月8号持续到4月11号。根据from---to--- 从---到---；故选C

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______of the students in our class ______ going to the summer camp in Beijing next week.

A. Two-fifths, are B. Second-fifths, are

C. Two-fifths, is D. Second-fifths, is

A 【解析】句意：我们班五分之二的学生将要去下周在北京的夏令营。分数的表达方式是：用基数词+序数词表示，如果分子大于1,分母则要用复数形式，所以Two-fifths是正确的表达方式，分数引导的短语作主语，其谓语动词的数应根据分数后面的名词students来确定。所以选用be动词的复数形式，故选A。

—May we leave the classroom now? —No, you ____. You ______to leave until the bell rings.

A. needn’t; aren’t allowed B. may not; are allowed

C. mustn’t; aren’t allowed D. can’t; are allowed

C 【解析】句意：-我们现在可以离开教室吗？不，你禁止这样。直到铃声响起你才被允许离开。Needn’t 指不必要，may not指不可以，mustn’t指禁止，can’t指不能，这里表示的是“绝对禁止”，用mustn’t。not…until表示“直到…才…”，“被允许去做…”为“be allowed to do…”，故本题选C。

--Mom, could I have a new computer?-- ___. We don’t have enough money.

A. Sounds great B. I am afraid not C. Don’t mention it.

B 【解析】句意：——妈妈，我能买一个新电脑吗？——我恐怕不能，我们没有足够的钱。A. Sounds great听起来很好； B. I am afraid not我恐怕不能， C. Don’t mention it.不要提它；根据we don’t have enough money.我们没有足够的钱，可知是恐怕不能买；故选B

--The last bus has left! What should we do?

-- We have no other ___now, let’s take a taxi.

A. choices B. reasons C. results

A 【解析】句意：——最后一班车离开了，我们该怎么办？——现在我们没有其他的选择，让我们乘出租车吧。A. choices 选择； B. reasons 原因； C. results结果；根据The last bus has left最后一班车离开了，let’s take a taxi.让我们乘出租车吧，可知是没有其他的选择，故选A

阅读短文, 根据短文内容回答问题。

Everyone speaks a language, but language is not just for talking. It is our most important communication tool. Through language, we can tell other people what we think, how we feel, and what we need. In fact, civilization (文明) itself depends on our ability to communicate.

In the long history of human, languages survive, grow, disappear, move from place to place, and change with time. Now, some languages are ancient, and others are new. There are about 6,000 different living languages around the world today, and there are many thousands more that are no longer in use. Languages might sound different, but they are thought to have come from a single ancient language. It would be quite interesting if we search for stories about the creation and disappearance of languages.

Nobody knows exactly when people first started using language. Some scientists say that people first spoke to one another about two million years ago.

Today, our sophisticated (复杂的) languages get fully used in the magazines, novels, science books, and movies that fill our libraries and bookstores. As human, it is important that we can tell the long stories, which separate us from the great apes (类人猿). Other animals may use various methods to communicate, but we humans send complicated messages through space and time.

Throughout history there were many languages that served as a lingua franca (通用语)— a common language that could serve as a bridge between people of different cultures. Today, English is the main language that plays that role around the world. Many people have some ability to use English. Most of these people have studied English as a second or third language.

Language helps people to work together, to share knowledge, feelings, and build up modern societies. The development of humanity’s many languages was an important process that helped humans move forward toward civilization.

1.Is language our most important communication tool?

2.How many living languages are there around the world today?

3.When did people start to speak to one another, according to some scientists？

4.What’s the main language around the world today?

5.What is the passage mainly about?

1.Yes 2.About 6,000 3.About two million years ago 4.English 5.The development of language and its roles in human society 【解析】试题本文主要介绍了语言的发展以及作为最重要的沟通工具它对人类文明进步的重要意义。 1.题意：语言是我们最重要的交际...

汉译英。

1.你明天一定要把书还给我。

You _________________the bike _________________ tomorrow。

2.她喜欢音乐，所以她每天花1小时听音乐。

She _________________ , so she _________________an hour _________________to music every day.

3.你确信房间里有没有人吗 ?

Are you _________________there _________________in the room?

4.我们不能同时看电视和做作业。

We _________________ and do our homework。

5.她是个很善良的女孩。她从不惹麻烦。

She is a _________________ girl. She never_______.

1. must return to me 2. likes music spends listening 3. sure is no one 4. can't watch TV, at the same time 5. kind, makes trouble. 【解析】 1.一定must；还给某人（我）return to sb.（me）；根据句意结构和中英文提示...

Who taught him _________ English?

A. learn B. learning C. to learn D. can learn

C 【解析】句意：谁教他学英语的？考查动词形式辨析题。teach sb. to do sth.教某人做某事；根据句意语境，可知选C。

— The food is delicious .How did you cook it well?

— First, I bought some good _______________.

A. ingredients B. instructions

C. express D. descriptions

A 【解析】句意：-食物美味，你是怎么把它做得这么好的？-首先，我买了一些优质的原料。A.原料B.说明C.表达D.描述，食物做得好和卖的原材料有关系，故选A。

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