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    must 表示“必须 .变一般疑问句将 must提前即可. must 的否定式 mustn't 表示“不许.禁止.不准 “一定不要.一定不许 .多用于上级对下级的要求. 或是某种明文规定.规章制度.表明了说话人或规章制度的权威性. 注:不用 mustn't 来回答由 must 开头的问句.而应用 needn't1.饭前你必须洗手.(P12) 【查看更多】

     

    题目列表(包括答案和解析)

    通读下面短文，掌握其大意，然后判断下列句子是否符合短文内容，符合的用“T”表示，不符合的用“F”表示。

    　　 　　There were forty students in our class. Last Friday we helped our teacher count all the books. He looked at the dirty books, and then 　　 he looked at clean ones. There were many clean books, but Peter's book was very dirty. Our teacher looked at Peter. He said Peter 　　 must get a new book. Peter said," Yes ,sir."

    　　　　We listened and we laughed at Peter. Then Peter laughed too.Then our teacher looked at Peter's hands. Peter showed his hands,and his hands were very dirty. Then we laughed at him again.

    　　　　His book was very dirty last Friday. Are your books dirty now?

    　　　　My book gets dirty when my hands are dirty. I wash my hands every day. Do you ever wash your hands? Peter washes his hands 　　sometimes, but his hands are always dirty; they are never（从不）clean.

    　　1. Last Friday the students helped their teacher to count all the book. 

    　　　　　　　　　　　　　　　　 ［　　 ］

    　　2. The teacher didn't look at the clean books.

    　　［　　 ］

    　　3. There were more dirty books than clean ones.

    　　［　　 ］

    　　4. Peter's book was very dirty because his hands were dirty.

    　　　　　　　　　　　　　　　　　　　　　　　　 ［　　 ］

    　　5. Peter never washes his hands, so they are always dirty.

    　　　　　　　　　　　　　　　　　　　　　　　　 ［　　 ］

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    根据图示提供的信息选择最佳答案。

    (1)Which is wrong?

    [　　]

    A．9-year-old boys are taller than 9-year-old girls generally（一般地）.

    B．From 10 to 14 years old, girls are shorter than the same aged boys.

    C．The height（身高）of 14 or 15 aged boys and girls is nearly the same.

    (2)Boys are taller than girls when they are _________ .

    [　　]

    A．11

    B．12

    C．16

    (3)Girls are shorter than boys when they are ________ .

    [　　]

    A．9~10

    B．11~14

    C．15~18

    (4)The diagram（图表）tells us ________ .

    [　　]

    A．If you are an 11-year-old boy, you must（必须）be shorter than an 11-year-old girl.

    B．The girls between 11 and 14 grow faster than the same aged boys.

    C．A 14-year-old boy must be as tall as a same aged girl.

    (5)Boys grow more slowly when they are ________ .

    [　　]

    A．8~12

    B．10~14

    C．14~18

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    阅读理解

    　　There are many unusual hotels around the world．In Greenland, there is a hotel made out of ice, open between December and April every year．In Turkey, there is a cave hotel with a television, furniture, and a bathroom in each room．And in Bolivia, there is the Salt Palace Hotel．

    　　Thousands of years ago, the area around the Salt Palace Hotel was a large lake．But over time, all the waiter disappeared．Today, the area has only two small lakes and two salt deserts．

    　　The larger of the two deserts, the Uyuni salt desert, is 12,000 square kilometres．During the day, the desert is bright white because of the salt．There are no roads across the Uyuni desert, so local people must show guests the way to the hotel．In the early 1990s, a man named Juan Quesada built the hotel．He cut big blocks of salt from the desert and used the blocks to build it．Everything in the hotel is made out of salt：the walls, the roof(屋顶), the tables, the chairs, the beds, and the hotel’s bar．

    　　The sun heats(使变热)the walls and roof during the day．At night the desert is very cold, but the rooms stay warm．The hotel has twelve rooms．A single room costs＄40 a night, and a double room costs＄60．

    　　A sign on the hotel’s wall tells guests,“Please don’t lick(添)the walls．”

    (1)

    What is unique about the Salt Palace Hotel?

    [　　]

    A．

    its long history．

    B．

    the price of the rooms．

    C．

    the guests that stay there．

    D．

    what it is made of．

    (2)

    Which sentence about the area around the Salt Palace Hotel is NOT true?

    [　　]

    A．

    It was a lake many years ago．

    B．

    It is white during the day．

    C．

    There are several roads to the hotel．

    D．

    It is more than 10,000 square kilometers．

    (3)

    Where did the salt used for the hotel come from?

    [　　]

    A．

    a salt factory

    B．

    the ground

    C．

    Turkey

    D．

    the walls of the hotel

    (4)

    What keeps the rooms warm at night?

    [　　]

    A．

    heat from the walls

    B．

    the desert air

    C．

    the sun

    D．

    the furniture

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    如图甲表示某生物膜结构，图中A、B、C、D、E、F表示某些物质，a、b、c、d表示物质跨膜运输方式。图乙和图丙表示物质运输曲线，请据图回答：


    （1）若图甲是癌细胞的细胞膜，则膜上含量较正常细胞减少的物质是[　　]　　　　。
    （2）若图甲是线粒体膜，b和c过程运输的气体分别是　　　　。b、c运输方式符合图　　　　所表示的物质运输曲线。
    （3）若图甲表示人体红细胞膜，则表示Na＋、K＋运输的分别是图中　　　　　　。Na＋、K＋的运输方式符合图　　　　所示曲线。
    （4）已知红细胞吸收葡萄糖是协助扩散，而有人认为小肠上皮细胞以主动运输的方式吸收葡萄糖，请设计实验加以确定。
    ①实验步骤：
    第一步：取甲、乙两组生理状况相同的小肠上皮细胞，放入适宜浓度的含有葡萄糖的培养液中。
    第二步：甲组细胞给予正常的呼吸条件，　　　　　　　　　。
    第三步：　　　　　　　　　　　　　　　　。
    ②预测实验结果并分析：
    a．若甲、乙两组细胞对葡萄糖的吸收速率基本相同，则　　　　　　　　　。
    b．                                。

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     Laboratory　work　is　your　chance　to　learn　science　firsthand.　It　can　be　fun　but　you　must　be　careful　to　prevent　injury.　Listen　closely　when　your　teacher　reads　and　explains　the　rules　before　your　first　lab　lesson.
    LABORATORYRULES
    Throughout　the　lesson
    ·Do　not　enter　the　science　lab　without　the　teacher’s　permission.·No　food　or　drinks　are　to　be　alowed　in　the　science　lab.
    Before　the　Experiment
    ·Read　al　instructions　carefuly　before　every　experiment.
    ·Prepare　al　apparatus（仪器）and　arrange　them　so　that　you　wil　not　knock　them　over　while　doing　the　experiment.
    During　the　Experiment
    ·If　you　are　unsure　of　how　to　use　any　apparatus　or　how　to　operate,　ask　your　teacher　for　help.·Never　smel　or　taste　chemicals　unless　your　teacher　gives　permission.
    After　the　Experiment
    ·Wash　al　apparatus　after　use　and　return　them　to　the　places　where　they　were.
    ·Throw　waste　materials　in　proper　waste　baskets.　　　　First　Aid　　　　
    ·Report　al　accidents　to　your　teacher　immediately.
    ·If　you　spil（ 溅 出 ）any　chemicals　onto　your　body　or　clothing,　wash　with　plenty　of　water　and　report　to　your　teacher.
    【小题1】　Your　teacher　wil　probably　tel　you　the　rules　above　_____　the　first　lab　lesson.

    A．beforeB．sinceC．duringD．after
    【小题2】　Before　every　experiment,　you　should　_____.
    A．taste　the　chemicals　first
    B．clean　al　the　apparatus
    C．read　al　instructions　carefuly
    D．report　al　the　accidents　to　the　teacher
    【小题3】　When　you　are　not　sure　how　to　use　al　apparatus,　_____.
    A.　try　them　on　your　own
    B.　read　the　rules　carefuly
    C.　ask　your　teacher　for　help
    d.　put　them　back
    【小题4】　It　is　clear　that　you　can　_____.
    A．bring　food　into　the　lab
    B．enter　the　lab　anytime
    C．smel　chemicals　as　you　like
    		D．learn　science　directly　in　the　lab
    【小题5】　If　you　get　chemicals　on　the　clothing,　you　can　find　ways　to　solve　it　in　the　part　_____.
    A．Before　the　Experiment
    B．First　Aid
    C．During　the　Experiment
    D．After　the　Experiment

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