欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

相關(guān)習(xí)題
 0  22017  22025  22031  22035  22041  22043  22047  22053  22055  22061  22067  22071  22073  22077  22083  22085  22091  22095  22097  22101  22103  22107  22109  22111  22112  22113  22115  22116  22117  22119  22121  22125  22127  22131  22133  22137  22143  22145  22151  22155  22157  22161  22167  22173  22175  22181  22185  22187  22193  22197  22203  22211  151629 

科目: 來源: 題型:

 He used this discovery to ________ a machine for making electricity. Faraday also showed how electricity affects chemical ubstances.

A. debate           B. reflect        C. match          D. produce

查看答案和解析>>

科目: 來源: 題型:閱讀理解

   A small dog should be belly-up after eating a handful M&M’s, at least according to conventional wisdom. But watching “Moose”, a friend’s five-pound Chihuahua, race around a living room after his sweet snack makes one wonder: Is chocolate truly poisonous to dogs?

    Dogs and humans have similar tastes. But unlike humans, our companions experience dangerous effects from eating chocolate — it can poison them and in some cases is fatal. Chocolate’s danger to dogs depends on its quality.

    Chocolate is processed from the bitter seeds of the cocoa tree, which contain a family of compounds known as methylxanthines(一種衍生物). This class of substances includes caffeine and the related chemical theobromine(可可堿). Chocolate contains a significant amount of theobromine and smaller amounts of caffeine. These chemicals can cause a dog’s heart to race up to twice its normal rate, and some dogs may run around as if “they drank a gallon of espresso,” according to Hackett.

    Dogs are capable of handling some chocolate, but it depends on the animal’s weight and the type of chocolate it eats. Unsweetened baking chocolate contains more than six times as much theobromine as milk chocolate, although amounts vary between cocoa beans as well as different brands of chocolate. Less than four ounces of milk chocolate is potentially fatal for Moose and other small dogs.

    Around every confection-centered holiday — Valentine’s Day, Easter and Christmas — at least three or four dogs are hospitalized overnight in the animal medical center at Colorado State. But in 16 years, Hackett has seen just one dog die from chocolate poisoning, and he suspects it may have had an underlying disease that made it more exposed to chocolate’s heart-racing effect.

1. The underlined expression “belly-up” probably means______.

   A. dead            B. poisonous                 C. running around  D. having a headache

2. All of the following are true EXCEPT______.

   A. chocolate’s danger to dogs depends on its quantity and quality

   B. people buy lots of chocolate around Valentine’s Day

   C. an ounce of unsweetened baking chocolate is safe for Moose

   D. there must be some theobromine or caffeine in espresso

3. What can we learn about Hackett?

   A. He is an animal doctor.         B. He is a pet shop owner.

   C. He is the owner of Moose       D. He is a doctor in a small hospital.

4. It can be inferred from the passage that Hackett believes that__________.

   A. chocolate is truly deadly to dogs 

B. it’s OK to give chocolate to a big dog

   C. pets are usually ignored around confection-centered holidays

   D. a healthy dog probably could survive a chocolate poisoning

5. The passage is mainly about__________.

  A. the poisoning of Moose   

   B. the compounds of different chocolates

   C. a handful M&M’s chocolate is poisonous

   D. the relation between methylxanthines and chocolate poisoning

查看答案和解析>>

科目: 來源: 題型:

29

近期,中學(xué)聘請(qǐng)外教之風(fēng)愈演愈烈,請(qǐng)你結(jié)合下表對(duì)其利弊發(fā)表自己的觀點(diǎn)。

好處

1. 提高學(xué)校的知名度。

2. 提高學(xué)習(xí)英語的興趣,口語表達(dá)能力增強(qiáng)。

3. 更好地了解外國文化。

弊端

1. 花費(fèi)高。

2. 一些外國人難以適應(yīng)我國的生活方式,甚至擔(dān)心自己的安全。

3. 外國人不了解中國學(xué)生的特點(diǎn)。

自己的觀點(diǎn)

一切需要靠自己

查看答案和解析>>

科目: 來源: 題型:

第二節(jié):書面表達(dá)(滿分25分)

假如你叫王麗,是一位高中生。請(qǐng)你用英語給報(bào)社寫一封信,反映如下情況并談?wù)勀愕牡南敕ǎ?/p>

現(xiàn)在有很多學(xué)生使用手機(jī)一是認(rèn)為這是種時(shí)髦二是認(rèn)為便于跟家人和朋友聯(lián)系。

一些學(xué)生把手機(jī)帶進(jìn)教室,在課堂上經(jīng)常聽見手機(jī)的鈴聲。破壞課堂紀(jì)律。

有的同學(xué)還在課堂上發(fā)短信息,浪費(fèi)寶貴的時(shí)間。

建議:教室是學(xué)習(xí)的地方,需要安靜;學(xué)生不應(yīng)該在教室中使用手機(jī);應(yīng)該集中注意力學(xué)習(xí)。(附:自己再想一條建議)

注意:

信的開頭和結(jié)尾已給出;

字?jǐn)?shù): 100 左右

參考詞匯 :集中(注意力) concentrate on

Dear Editor ,

   I’m a senior high student . 

查看答案和解析>>

科目: 來源: 題型:

.I am sure that Laura's latest play, ________ staged, will prove a great success.

    A.since   B.unless      C.once        D.until

查看答案和解析>>

科目: 來源: 題型:

 We tried to find a table for seven,but they were all         .

A. given away    B. kept away      C. taken up         D. used up

查看答案和解析>>

科目: 來源: 題型:

第二節(jié):書面表達(dá)(滿分30分)

假如你是李華,請(qǐng)代表校學(xué)生會(huì)用英語根據(jù)表格內(nèi)要點(diǎn)寫一份倡議書,號(hào)召大家為玉樹地震災(zāi)區(qū)獻(xiàn)一份愛心。

原因

(簡要說明)

獻(xiàn)愛心方式

 捐款

建議(至少兩點(diǎn))

以班級(jí)為單位,本周四以前完成獻(xiàn)愛心活動(dòng),由班長統(tǒng)一交學(xué)生會(huì);

……

注意:1.詞數(shù):100~120左右。 2.開頭語已為你寫好(不計(jì)入詞數(shù))。3.可適當(dāng)增加細(xì)節(jié)。

Dear fellow students,

On April 14, a great earthquake occurred in Yushu, Qinghai.____________________________

查看答案和解析>>

科目: 來源: 題型:

So suddenly _____ that I hadn’t prepared for it. What a pity I had let it go!

  A. the chance came                        B. the chance would come

  C. did the chance come                     D. would the chance come

查看答案和解析>>

科目: 來源: 題型:

 I’ll lend you the money only on ______you can pay ______on time.

A.condition that;it back   B.condition that;for it

C.one condition;for it       D.one condition;it back    

查看答案和解析>>

科目: 來源: 題型:

 --- Excuse me, may I have a doggie bag?

   --- ________, Madam. I’ll wrap it up for you.

A. My pleasure      B. Go ahead       C. Come on     D. No problem

查看答案和解析>>

同步練習(xí)冊(cè)答案