【題目】You can buy socks __________ girls __________ only five dollars each.
A. to; to B. for; to C. for; for D. to; for
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【題目】在貝殼上滴稀鹽酸,能產(chǎn)生使澄清石灰水渾濁的氣體, 這說明貝殼中含有的離子是( )。
A.Ca2+ B.CO32- C.SO42- D.OH-
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【題目】世界每年因銹蝕而損失的金屬數(shù)量巨大,防止金屬銹蝕已成為科學研究中的重大問題.下列有關(guān)金屬銹蝕與保護的措施中不正確的是( )
A.鐵銹蝕的實質(zhì)是鐵與空氣中的氧氣、水蒸氣等發(fā)生了化學變化
B.同樣的鐵制品在海南比蘭州更易銹蝕
C.在鐵表面刷油漆可以防止鐵銹蝕
D.鋁的抗腐蝕性能比鐵強,生活中可用鋼絲球洗刷鋁鍋
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【題目】某興趣小組利用家中的材料研究影響物質(zhì)溶解性的因素,實驗步驟設(shè)計如下:
Ⅰ.稱取六份冰糖和一份食鹽,每10g為一份,并將其中五份冰糖研磨成粉末.
Ⅱ.按照下表進行實驗(實驗所需儀器略)
第一組 | 第二組 | 第三組 | 第四組 | ||||
實驗溫度 | 20℃ | 20℃ | 20℃ | 20℃ | 20℃ | 20℃ | 80℃ |
固體種類 | 冰糖 | 冰糖 | 冰糖(粉末) | 冰糖(塊狀) | 冰糖 | 食鹽 | 冰糖 |
固體質(zhì)量 | 10g | 10g | 10g | 10g | 10g | 10g | 10g |
溶劑種類 | 水 | 植物油 | 水 | 水 | 水 | 水 | 水 |
溶劑質(zhì)量 | 50g | 50g | 10g | 10g | 10g | 10g | 10g |
請你對他們的實驗設(shè)計進行分析:
(1)根據(jù)上述設(shè)計,你認為他們準備研究的影響因素是________________________________,其中不影響物質(zhì)溶解性的因素是________________________________________.
(2)根據(jù)第四組實驗與前三組實驗的比較,你可以得到的結(jié)論是________________________.
(3)你認為第四組實驗的設(shè)計是否會影響實驗結(jié)論的得出,請簡述理由:________________________________________________________________.
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【題目】Let’s __________ Chinese together.
A. study B. studying C. studies D. studys
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【題目】詞語運用(10小題,每小題1分,共10分)
先閱讀短文,掌握其大意。然后從方框中所給的詞中選出恰當?shù)?0個,并用其適當形式填空,每個詞限用一次。(每小題1分)
on, also, be, need, like, for, much, Sally, yellow, color
Hi, boys and girls! Come to 1 store! We have cool blue T-shirts 2 only ¥10! And the pants 3 ¥20 now in three different 4 .The black sweater is 5 sale for only ¥5! And the green shorts are 6 ¥5! Do you 7 the white sweater? It’s only ¥25! And for girls, red,
8 and blue skirts are only ¥15! How 9 is the blue hat? Sorry, it’s my hat. I 10 it.
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【題目】句型轉(zhuǎn)換。
1. There is a post office on New Street. (改為一般疑問句)]
__________ __________ a post office on New Street?
2. Are there two shops near here?(作否定回答)
__________, __________ __________.
3. Lucy sits on Susan’s left and George’s right. (改為同義句)
Lucy sits __________ Susan __________ George.
4. My backpack is behind the chair. (改為同義句)
The backpack __________ __________ __________ is __________.[來
5. The library is near her house. (就畫線部分提問)
__________ __________ the library?
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【題目】 He needs __________ hamburgers because he is very hungry.
A. two more B. more two
C. other two D. two another
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【題目】Lisa has an interesting hobby. She likes collecting stamps(郵票).She usually collects stamps after school. Now she has five hundred stamps from all over the world. And four hundred of them are in colour.
Lisa likes stamps with pictures of animals in them. In this way,she knows the names of many animals. She also borrows books about animals from her school library. She learns a lot about them.
Sometimes Lisa has many stamps of the same kind. So she usually gives them to her friends. Then they give her other stamps.
Lisa writes to her friends in many countries. She sends them stamps of her own country. And her friends send her stamps of their countries. Lisa's father also buys stamps for her. Many of Lisa's friends collect other things. Some collect coins(硬幣)and others collect cards.
【1】How many colour stamps does Lisa have?
A. One hundred. B. Four hundred.
C. Five hundred. D. Nine hundred.
【2】Why does Lisa like stamps with pictures of animals in them?
A. Because she wants to feed some animals.
B. Because she can make much money.
C. Because she can know the names of many animals.
D. Because she will borrow some animals from her friends.
【3】Sometimes Lisa has many stamps of the same kind. She usually .
A. keeps them
B. throws them away
C. sells(賣)them to her friends
D. sends them to her friends
【4】Which of the following is TRUE according to the passage?
A. Lisa writes to her friends in many countries.
B. Lisa's mother often buys stamps for her.
C. Lisa's stamps are all in colour.
D. Lisa borrows books about stamps from her school library.
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