Tom knew nothing about it ________ his sister told him.

A. since B. if C. until D. as

C 【解析】句意：湯姆直到他的姐姐告訴他，他才知道那件事的。A. since自從； B. if如果； C. until，前面有否定詞nothing，“直到……才”；D. as因?yàn)�，�?dāng)……時(shí)候。因?yàn)榭崭袂懊嬗蟹穸ǖ暮�義：湯姆不知道那件事。所以是在姐姐告訴之前不知道。根據(jù)句意故選C。

I'd like you ________ for a picnic with us.

A. go B. to go C. going D. went

B 【解析】句意：我想要你和我們一起去野餐。I'd=I would，would like to do sth想要做某事；go for a picnic with sb.和某人一起去野餐；would like sb. to do sth. 想要某人做某事。故選B。

Jim，I'm too tired. May I stop ________ a rest?

A. having B. have C. to having D. to have

D 【解析】句意：Jim，我太累了，我可以停下來休息一下嗎？tired形容詞， “累的”，too“太”，副詞，修飾形容詞tired；have a rest休息；stop to do sth.停下來去做某事；stop doing sth停止正在做的事情。根據(jù)I'm too tired累了，所以應(yīng)該要做的事情是休息一下。故選D。

Brian puts the cardboard on the top of the jar and ________.

A. turns over it B. turns it over

C. turns them over D. turns over them

B 【解析】句意：Brian在罐子上面放了一個(gè)硬紙板并且又把它翻過來了。on the top of在……頂部；cardboard硬紙板，是單數(shù)；下文應(yīng)該用代詞it來代替，不能用復(fù)數(shù)形式的them，故排除CD； turn over翻過來，是動(dòng)副結(jié)構(gòu)的短語，代詞作賓語時(shí)要放在動(dòng)詞和副詞之間。故排除A；故選B。

—3?D printing could be used to build a house in less than 24 hours.

—It ________ amazing. It's my first time to get to know this.

A. sounds B. smells C. tastes D. looks

A 【解析】句意：--3D打印機(jī)在不到24小時(shí)之內(nèi)能夠建好一個(gè)房子。--聽起來真令人吃驚，這是我第一次了解到這件事的。A. sounds聽起來； B. smells聞起來； C. tastes嘗起來； D. looks看起來。這里it指的上面提到的那件事3?D printing could be used to build a house in less than 24 hours，這件事應(yīng)...

Lily，please ________ your new storybook here tomorrow.

A. bring B. to bring C. take D. to take

A 【解析】句意：Lily，明天請(qǐng)帶上你的新故事書到這里來。bing帶來,指把東西帶到說話的地方來；take帶走，指的是把東西帶離說話的地方。根據(jù)here可知，應(yīng)該指的是把東西帶到說話的地方。應(yīng)該用bring；故排除CD；空格前沒有主語，這里是祈使句，所以應(yīng)該用動(dòng)詞原形開頭。故排除B；故選A。

We'll go to the park ________ there is a heavy rain tomorrow.

A. unless B. since C. as soon as D. if

A 【解析】句意：如果明天沒有大雨，我們將去公園。A. unless除非，如果不； B. since自從，既然； C. as soon as一……就； D. if如果。根據(jù)We'll go to the park我們?nèi)ス珗@；所以空格后應(yīng)該是不下雨。故選A。

The elephant has ________ a strong body ________ it can do heavy work for people.

A. so; that B. such; that C. such; so D. so; and

B 【解析】句意：大象有如此強(qiáng)壯的身體以至于它能為人們做很重的工作。so...that...句型中的so是副詞，常常用來修飾形容詞或副詞，意思是“如此/這么……以致于……”1.常用句型為：主語+謂語+so+adj./adv.+that從句。2.so+形容詞+a(n)+單數(shù)名詞+that從句。例如：She made so good a meal that we all ate far too ...

—What kind of TV shows do you prefer?

—I like the ones ________ make me laugh.

A. who B. whom C. that D. what

C 【解析】句意：--你喜歡哪種電視節(jié)目？--我喜歡那種使我笑的節(jié)目。________ make me laugh 是定語從句。A. who是定語從句的關(guān)系代詞，指人的；在句中作主語； B. whom是定語從句的關(guān)系代詞，指人的；在句中作賓語；C. that是定語從句的關(guān)系代詞，指人或物；在句中作主語或賓語； D. what不能引導(dǎo)定語從句。故排除D；第二句中的the ones代替前面出現(xiàn)的...

—We have sixty students in our class. ________ of them are boys. How many girls are there, do you know?

—There are twenty girls.

A. One third B. Two thirds C. One quarter D. A half

B 【解析】句意：--在我們班里有60名學(xué)生，他們中三分之二都是男生，有多少女生呢，你知道嗎？--有20名女孩。A. One third 三分之一； B. Two thirds三分之二；C. One quarter四分之一； D. A half一半。根據(jù)We have sixty students in our class.班里共有60名學(xué)生，There are twenty girls.2...