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400字寫神奇的四年級作文
在日復一日的學習、工作或生活中，大家都寫過作文吧，作文是通過文字來表達一個主題意義的記敘方法。那么，怎么去寫作文呢？下面是小編為大家整理的400字寫神奇的四年級作文，僅供參考，歡迎大家閱讀。
400字寫神奇的四年級作文1
延續動詞與瞬間動詞
1)用于完成時的區別
延續動詞表示經驗、經歷;瞬間動詞表示行為的結果，不能與表示段的時間狀語連用。 He has completed the work.他已完成了那項工作。 (表結果)
I've known him since then.我從那時起就認識他了。(表經歷)
2)用于till / until從句的差異
延續動詞用于肯定句，表示"做……直到……"瞬間動詞用于否定句，表示"到……，才……" He didn't come back until ten o'clock.
他到10點才回來。
He slept until ten o'clock.
他一直睡到10點。
典型例題
1. You don't need to describe her. I ___ her several times.
A. had met B. have met C. met D. meet
答案B.首先本題后句強調對現在的影響，我知道她的模樣，你不用描述。再次，several times告知為反復發生的.動作，因此用現在完成時。
2.---I'm sorry to keep you waiting.
---Oh, not at all. I ___ here only a few minutes.
A. have been B. had been C. was D. will be
答案A.等待的動作由過去開始，持續到現在，應用現在完成時。
用一般過去時代替完成時
1)兩個動作如按順序發生，又不強調先后，或用then，and，but等連詞時，多用一般過去時。
When she saw the mouse，she screamed.
My aunt gave me a hat and I lost it.
2 )兩個動作相繼發生，可用一般過去時;如第一個動作需要若干時間完成，用過去完成時。 When I heard the news, I was very excited.
3)敘述歷史事實，可不用過去完成時，而只用一般過去時。
Our teacher told us that Columbus discovered America in 1492.
400字寫神奇的四年級作文2
一、現在分詞和過去分詞的構成(形式)
外教一對一一般式doing being done style="text-indent: 2em; text-align: left;">完成式having done having been done
過去分詞的構成：done
二、過去分詞的用法
過去分詞一般表示完成的和被動的動作，只有一種形式。
過去分詞用法如下：
1.作定語和現在分詞作定語的用法相同。作定語用的過去分詞如果是單詞，一般放在名詞的前面;如果是過去分詞短語，要放在名詞的后面。
2.作表語
3.作賓語補足語
4.作狀語
三、現在分詞的用法
1.作定語作定語用的分詞如果是單詞，一般放在名詞的前面。如果是分詞短語，一般放在名詞的后面，它的功用相當于定語從句。
2.作表語
3.作賓語補足語分詞在復合賓語中可作賓語補足語�？蓭н@種復合賓語的動詞有：see, watch, hear, feel, find, get, keep等。
高一英語語法知識
虛擬語氣
虛擬語氣也是一個難點。所謂虛擬語氣是表示說話人的`愿望、假設、猜測或建議，而不表示客觀存在的事實。它通過句子的謂語動詞的特殊形式來表示。
現歸納如下：純假設，用虛擬，動詞時態退一級：條件句，分主從，主句謂語前加would (should,could，might);表愿望,用虛擬，wish后面接賓語(從句)：現在過去與將來，動詞時態退一級：提建議，用虛擬，賓語(從句)動詞用(should)do：倆建議，三要求，再加堅持與命令
(suggest,advise,demand,require,request,insist,order)：It is time和eoukd rather,后接叢句用虛擬：部分主語從句中，謂語用虛擬結構(It is necessry
/important/natural/natural/strange/strange that??should do)。下面舉例說明：
A、If you came tomorrow,we would have the metting. (條件句虛擬)
B、Without air,there would be no living things.(同上)
C、We wish we had arrived there two hours earlier.(表示愿望虛擬)
D、He demanded that we (should)start right away.(表示建議虛擬)
E、It is(high)time that we left (should leave)now.(特殊從句虛擬)
F、I would rather you gave me the book.(同上)
G、It is necessary that we should clean the room everyday，(主語從句虛擬) H、He speaks English so fluently as if he were English. (特殊從句虛擬)
高一英語知識點
一、一般過去將來時
1.概念：立足于過去某一時刻，從過去看將來，常用于賓語從句中。
2.時間狀語：The next day (morning, year…),the following month(week…),etc.
3.基本結構：主語+was/were +going to + do+其它;主語+would/should + do+其它
4.否定形式：主語+was/were+not + going to + do;主語+would/should + not + do.
5.一般疑問句：was或were放于句首;would/should提到句首。
6.例句：He said he would go to Beijing the next day.他說他第二天要去北京。
I asked who was going there.我問，誰要去那里。
二、現在進行時
1.概念：表示現階段或說話時正在進行的動作及行為。
2.時間狀語：Now, at this time, days, etc. look. listen
3.基本結構：主語+be +doing +其它
4.否定形式：主語+be +not +doing+其它
5.一般疑問句：把be動詞放于句首。
6.例句：How are you feeling today?你今天感覺如何?
He is doing well in his lessons.在課上他表現得很好。
400字寫神奇的四年級作文3
good to對……友好be good for對……有益;be bad to…/be bad for…
up加起來增加
add up to合計，總計
add…to把……加到……
…until/till意思是“直到…才”
sth/sb done使……完成/使某人被……
m down平靜下來
concerned about關心，關注
7.當while,when,before,after等引導的時間狀語從句中的主語與主句的主語一致時，可將從句中的主語和be動詞省去。
While walking the dog,you were careless and it got loose.
at in the exam
through經歷;度過;獲準，通過
e away躲藏;隱藏
down寫下，記下
12.I wonder if…我不知道是不是…
purpose故意
happen to sb某人發生某事
sb happen to do sth某人碰巧做某事
it so happened that……正巧碰巧
is the first(second…)that…(從句謂語動詞用現在完成時)
one’s power處于……的控制之中
’s no pleasure doing…做…沒有樂趣
It’s no good/use doing sth.做某事是沒好處/沒用的
found it difficult to settle and calm down in the hiding 做形式賓語
fer from患…病;遭受
…that…/such…thay…
tired of…對…感到勞累疲憊
e some trouble with sb/sth.在……上遇到了麻煩
along with sb/sth.與某人相處
(sb)for advice.(向某人)征求建議
e后接復合賓語，賓語補足語須用不帶to的不定式、形容詞、過去分詞、名詞等。常見的'有以下幾種形式:
make sth.讓(使)某人做某事
make sb./sth.+adj.使某人/物…
make sb./oneself+v-ed讓某人/自己被…
When you speak,you should make yourself understood.
make sb.+n.使某人成為…
ne /lonely.單獨的/孤獨的
26.I would be grateful if…委婉客氣提出請求
not do…=why don’t you do…
400字寫神奇的四年級作文4
1. know of /about 了解,知道關于 2. leave work 下班
3. make great achievements 取得巨大進步 4. even if/though 即使,甚至
5. in sight /out of sight /lose sight of 6. make sense (of ) 知道,了解;有意義
7. watch out (for)注意,小心/ on watch 站崗 8. be frozen with/by被..驚呆
9. wish (for) sb to do 希望去做 10. pay back / off /for
11. be linked to / be related to 和有關 12. hold sb. still 使.一動不動
13. make the best(most) of /make full use of 14. breathe in吸進/take in吸進;理解,吸收
15. cant help doing /to do
17. warm (sb.)up 18. all of a sudden
19. make progress 20. bang into撞上
22. glance at /stare ( up ) at /glare at 23. set off(for/towards) 起程或出發去
24. second to none 最好 32. reach out for sth 伸手去夠
33. rest on/upon sth 搭在上 34. be grateful to sb for sth 由于..感激.
35. have .in common 36. match A with B
37. in some cases在某些情況下 38. look up to 敬仰.
39. make ones way to 前進,去 40. compared to /with
41.feed on(upon) /feedwith 42. focus on /upon
43.take turns to do / (at) doing 44.in panic 害怕的,恐懼的'
45.die of /from 46.speak /think highly of sb.
47. be related/linked to 和有關 48. have .to do with
50. rather than而不是 51. turn down 把(音量)調小;拒絕
52. turn around環顧四周 53. in the distance 在遠處
54. be known as/for/to
400字寫神奇的四年級作文5
survey 調查;測驗
add up 合計
upset adj.心煩意亂的;不安的;不適的 vt.使不安;使心煩。
ignore 不理睬，忽視
calm vt.vi(使)平靜;(使)鎮定 adj.平靜的;鎮靜的;沉著的
calm (…)down (使)平靜下來;(使)鎮靜下來
have got to 不得不;必須
concern (使)擔憂;涉及;關系
be concerned about 關心;掛念
walk the dog 遛狗
loose 松的;松開的
vet 獸醫
go through 經歷;經受
Amsterdam 阿姆斯特丹(荷蘭首都)
Netherlands 荷蘭(荷蘭國家)
Jewish 猶太人;猶太族的
German 德國的;德國人的;德語的;德國人;德語
Nazi n.納粹黨人adj.納粹黨的
set down 記下;放下;登記
series 連續;系列
a series of 一連串的;一系列;一套
outdoors 在戶外;在野外
spellbinding 迷住;迷惑
on purpose 故意
in order to 為了…
dusk 黃昏;傍晚
at dusk 在黃昏時刻
thunder v打雷;雷鳴;n雷;雷聲
entire 整個的;完全的;全部的
entirely 完全地;全然地;整個地
power 能力;力量;權力
face to face 面對面地
curtain 窗簾;門簾;幕布
dusty 積滿灰塵的.
no longer ot…any longer 不再
partner 伙伴;合作者;合伙人
settle 安家;定居;停留 使定居;安排;解決
suffer 遭受;忍受;經歷
suffer from 遭受;患病
loneliness 孤單;寂寞
highway 公路;大路;<美>高速公路
recover 痊愈;恢復;重新獲得
gete tired of 對…厭煩
pack 捆扎;包裝;打行李 小包;包裹
pack(sth)up 將(東西)裝箱打包
suitcase 手提箱;衣箱
overcoat 大衣;外套
teenager 十幾歲的青少年
get along with 與…相處;發展
gossip 閑話;閑談
fall in love 相愛 愛上
exactly 確實如此;正式;確切地
disagree 不同意
grateful 感激的;表示謝意的
dislike 不喜歡;厭惡
join in 參加;加入
tip n.揭示;技巧;尖;尖端;消費 vt. 傾斜; 翻到
secondly 第二;其次
swap 交換
item 項目;條款
400字寫神奇的四年級作文6
核心單詞
1、 persuade
vt。說服；勸服；使相信（同convince）
常用結構：
persuade sb。 of sth。使某人相信某事
persuade sb。 to do sth。說服某人做某事
persuade sb。 into doing sth。說服某人做某事
persuade sb。 out of doing sth。說服某人不要做某事
persuade sb。 that—clause使某人相信……
聯想拓展
talk sb。 into/out of doing sth。=reason sb。 into/out of doing sth。
說服某人做/不做某事
trick sb。 into/out of doing sth。誘使某人做/不做某事
urge sb。 into/out of doing sth。慫恿某人做/不做某事
易混辨析
advise/persuade
advise強調"勸告，建議"的'動作，不注重結果；而persuade強調"已經說服"，重在結果。用法上：advise可跟v。—ing形式作賓語，也可以接that—clause （that sb。 should do），而persuade則不能。
I persuaded him of its truth。我使他相信這是真的。
We will persuade him to take the medicine。
我們將說服他把藥吃下去。
We persuaded her into taking the job。
我們說服她接受了這份工作。
I persuaded my father out of smoking。
我勸服父親戒了煙。
400字寫神奇的四年級作文7
重點單詞講解。
(1)add
① add …to…把…添加…/把…加起來
�、� add up to共計，總共
�、� add to增添
(2)upset
過去式：upset過去分詞：upset現在分詞：upsetting
adj.心煩意亂的，不安的，不適的
be upset about/over為某事心煩、不安
be upset that心煩
vt.使不安，使心煩
It upsets sb that讓某人心煩的是
It upsets sb to do sth做某事使某人不安
(3)concern
vt.使擔心，顧慮，涉及，關系到
n.擔心，關注，利害關系
①as far as sb/sth + be concerned就某人而言，對于某人來說
as far as I am concerned就我而言，對于我來說
as far as he is concerned對他來說
as far as English is concerned關于英語，對于英語
�、赽e concerned about/for關心，掛念
have no concerned about/for
�、踒e concerned in/with涉及到，與…有關
have no concerned in/with
(4)go through
①經歷，遭受，忍受go through one difficulty after another.經歷一個又一個困難。
�、谧屑殭z查，審查go through your paper檢查你的試卷。
③瀏覽，翻閱go through all the related reference.瀏覽相關資料。
�、芡ㄟ^，穿過=pass through go through a great forest.穿過一片大森林。
⑤完成go through the task.完成任務。
(5)suffer
�、賡uffer作“遭受”時，后面直接接pain, loss, injury, harm或punishment.
�、趕uffer作“受…苦”時，常常搭配：suffer from
(6)get/be tired of厭煩…
get/be/feel tired of sb / sth / doing sth厭煩
be tired from由于…而疲勞(體力上的疲勞)，側重原因
be tired out精疲力竭的
(7)join in參加，加入
區別join ,join in ,attend與take part in：
join：多指加入組織，團體，黨派等，有作為其中一員的意思。例：join the army參軍
join in：參加某項游戲，活動，討論等。常用結構：join sb in
例：Will you join us in a walk?
attend：參加會議，婚禮，葬禮，上課，講座，聽報告等。
例：attend a lecture參加一個講座。
take part in：多指參加群眾性的活動，運動，戰爭等。
例：take part in the march.
虛擬條件句
條件狀語從句是非真實情況，在這種情況下要用虛擬語氣。
l-條件從句與現在事實不一致，句型為：If+主語十過去時，tiag+should (could，would，或might)+動詞原形，例如：If l were you，1 would study hard.
2.條件從句與過去事實不一致，句型為：If+主語+had+過去分詞，主語+should(could, would，或might)+have+過去分詞，例如：If I had not studied hard.1would have failed in the exam last term
3.條件從句與將來事實不一致，句型為：lf+主語+should/were to+do，主語+should( could.)+原形do，例如：If l were to go to the moon one day,I could see itwith my own eyes.
注意：
1.If條件句中絕對不可出現“would”。
2-根據句中的時間狀語，有時可能出現“混合虛擬”的情況，即主句可能是現在的'情況，條件句也許是發生在過去的情況，但都遵守上述句型。
3.在條件句中如果出現were，had，should可省去if'
將這些詞提前置于句首構成倒裝，例如：w。re I to go tothe moon one clay,1 would see it with my own eyes.如果有一天我登上月球，我就可以親眼目睹它的樣子了。
直接引語和間接引語
(一)直接引述別人的原話，叫做直接引語;用自己話轉述別人的話，叫做間接引語。間接引語一般構成賓語從句。直接引語必須放在引號內，間接引語則不用引號。直接引語改為間接引語時，除將引語部分變成賓語從句外，還必須對直接引語中的人稱、時態、指示代詞、時間狀語、地點狀語等進行改變。
1.時態的變化：直接引語變為間接引語時，通常受轉述動詞said, asked等的影響而使用過去化的時態，即把原來的時態向過去推，也就是一般現在時變為一般過去時，現在進行時變為過去進行時，等等。例如：
Tom said to me,“My brother is doing his homework.”
→Tom said to me that his brother was doing his homework.
2.人稱代詞、指示代詞、時間狀語、地點狀語等等的變化：根據意義進行相應的變化，例如：
She asked Jack,“Where have you been?”
→She asked Jack where he had been.
He said,“These books are mine.”
→He said that those books were his.
(二)直接引語改為間接引語時，都使用陳述語序，但是因為原句的句式不同，所以變成間接引語時所用的連詞會有所不同。直接引語如果是一般疑問句，用連接詞whether或if;如果是特殊疑問句，則用疑問詞引導間接引語。轉述的動詞一般用asked，可以在其后加上一個間接賓語me, him, her, us等。如：
She said,“Is your father at home?”
→She asked me if/whether my father was at home.
“What do you do every Sunday?”My friend asked me.
→My friend asked me what I did every Sunday.
直接引語如果是祈使句，改為間接引語時，要將祈使句的動詞原形變為帶to的不定式，并在不定式的前面根據原句的語氣(即請求或命令)加上ask, tell, order等動詞，如果祈使句為否定式，則在不定式前加not。其句型為：ask / tell / order someone (not) to do something.例如：
She said to us,“Please sit down.”
→She asked us to sit down.
He said to him,“Go away!”
→He ordered him to go away.
He said, “Don’t make so much noise, boys.”
→He told the boys not to make so much noise.
raise vt.“使……上升;升起;提高”等;
rise vi.“上升;升起”;
arise vi.“站起來(stand up)”，“起床(get up)”
rise和arise用作站起，起床都屬正式用法;arise主要表示“出現、發生”等意思。
She raised her voice in anger. (抬高)
The wind raised the fallen leaves from the ground. (刮起)
The child rose from the ground and ran to his mother. (=The child raised himself from the ground and ran to his mother.) (爬起)
She rises before it is light. (起床)
Difficulties will arise as we do the work. (出現)
重點短句
1. be good to對......友好be good for對......有益;be bad to…/be bad for…
2. add up加起來增加add up to合計，總計
add… to把......加到......
3. not…until/till意思是“直到…才”
4. get sth/sb done使......完成/使某人被......
5. calm down平靜下來
6. be concerned about關心關注
7.當while, when, before, after等引導的時間狀語從句中的主語與主句的主語一致時，可將從句中的主語和be動詞省去。
While walking the dog, you were careless and it got loose.
8. cheat in the exam考試作弊
9. go through經歷;度過;獲準，通過
10. hide away躲藏;隱藏1
1. set down寫下，記下
12. I wonder if…..我不知道是不是…. 12. on purpose故意
13. sth happen to sb某人發生某事
sb happen to do sth某人碰巧做某事it so happened that ......正巧碰巧
14. It is the first (second…) that… (從句謂語動詞用現在完成時)
15. in one’s power處于......的控制之中
16. It’s no pleasure doing….做…..沒有樂趣
It’s no good/ use doing sth.做某事是沒好處/沒用的
17. She found it difficult to settle and calm down in the hiding place. it做形式賓語
18. suffer from患…病;遭受19. so…that… /such…thay…
20. get tired of….對…感到勞累疲憊
21. have some trouble with sb/sth.在......上遇到了麻煩22. get along with sb/sth.與某人相處
23. ask(sb)for advice. (向某人)征求建議
24. make后接復合賓語，賓語補足語須用不帶to的不定式、形容詞、過去分詞、名詞等。常見的有以下幾種形式:
make sb. do sth.讓(使)某人做某事make sb. /sth. +adj.使某人/物…
make sb./ oneself +v-ed讓某人/自己被…
When you speak, you should make yourself understood. make sb.+n.使某人成為…
25. alone /lonely.單獨的/孤獨的
400字寫神奇的四年級作文8
1. What would you like to see happen in the future.
2. Not only is every step of climbing Mount Qomolangma felt by viewer, but also the cold, the tiredness, the food, the smells, the sights and the sounds of the mountain can all be experience.
3. Upon reaching the top of the mountain, a feeling of happiness and a sense of achievement will be experienced.
4. RealCine works by making the viewers feel that they are actually in the film.
5. The movements of the headset indicate the direction in which the view wants to go.
6. In scientific studies it has been shown that VR can provide teenagers with another way to experience the world and make them work harder to make their dreams come true.
7.The teenager was made to think that he had scored the winning goal.
8. An argument has been put forward that some viewers will be disappointed by Realcine.
9. Firefighters could be trained using Realcine without the risk of sending them into a burining building.
10. It has been suggested that travel sickness should/can be reduced by using virtual reality.
11. This could be of great benefit to people and will be researched further.
12. Also, we need to buy new keyboards and mousse because many of the keyboards have letters missing.
13. If the PC (No.7) I was using had had a good keyboard, I would not have made so many mistakes.
14. He left university in order to concentrate on the writing.
15. The teacher wont mind you using the computer.
16. The Time Traveller journeys through millions of years, seeing even more alien creatures than before.
17. He finally stops thirty million years into the future and experiences a future time where the sun no longer shine brightly.
18. Scared and cold, the Time Traveller starts back towards the present.
19. Instead of waiting to be rescued, the three young people teach themselves astrophysics.
20. With the help of force from a black hole, the are able to guide the lost spaceship safely back to the Earth.
400字寫神奇的四年級作文9
can't help doing sth.
can't help doing sth.禁不住做某事，不由得不做某事
She couldn't hep smiling.
[比較]
(1) can't help but do不得不……;不能不
When the streets are full of melting snow, you can't help but get your shoes wet.
(2) cannot but不能不，只能
He could not but feel disappointed.
[歸納]
(1) help (sb.) (to) do sth. Help me get him back to bed at once.
By helping them we are helping save ourselves.
(2) help...with sth.幫助……做某事
In those days he used to help her mother with her gardening.
(3) help oneself / sb. to sth.給自己/別人夾菜/拿煙等;擅自拿用
May I help you to some more vegetables?
(4) help...in sth.在……方面幫助某人
She offered to help Rose in the housekeeping when I am not here.
(5) help out幫忙(做事;克服困難等)
I've often helped Bob out when he's been a bit short of money.
400字寫神奇的四年級作文10
定冠詞的用法
1.表示特定的人或物
2.表示地球、宇宙中獨一無二的事物，主要指各種天體及世界上比較有影響的物體。
The sun，the moon，the earth
3.表示地點、方向、時間、方式等 at the corner 在拐角處
1) 在表示季節的名詞前常不用冠詞。 In spring 在春天
2) 具體某年的某個季節，需用冠詞。
In the summer of the year20xx
3)用于序數詞或形容詞的.級前 the first the second
4)用于形容詞前使其名詞化 the rich the poor
5)用于復數姓氏前，表示夫婦‖或全家 The Smiths
6)用于樂器名詞前 Play the piano
400字寫神奇的四年級作文11
1) from now/today/then/that time on自現在起/今天/那時/那時起
2) go by經過，依照，作為指南
3) go by sb/the law從某人旁邊經過/遵守法律
4) let a chance go by放過機會
5) (time) go by (時光)流逝
6) go after/go over/go out追求/檢查/熄滅
7) go all out/ go in for全力以赴/從事，酷愛
8) go through遭受
9) as a result結果，因此
10) as a result of作為的結果
11) with the result that結果是，因此
12) without result毫無結果
13) result from = lie in因引起
14) achieve ones goal實現某人的目
15) set a goal設定一個目標
16) a personal call親自訪問
17) ones personal view某人的個人觀點
18) personally speaking就個人而言
19) in a way = in one way在某種程度上
20) in no way一點也不，決不
21) in the/ones way擋道的，妨礙人的
22) all the way一直，自始至終
23) on the/ones way接近，在進行中，在路上
24) by the way順便說
25) in this way用這種方式
26) in any way在任何方面
27) lead the way帶路，引路
28) lose ones way迷路
29) make ones way前往，去
30) arise from/out of sth因某事物而產生
31) deal with處理，安排，與做買賣
32) do with處置，處理，利用
33) watch over看守，監守
34) watch out小心，當心
35) on watch值班
36) in ones opinion以某人的.觀點
37) with the help of在的幫助下
38) traffic signals交通信號燈
39) sothat如此以至于
40) human race人類
41) later on后來
42) be filled with充滿，填滿
43) get together聚會
44) make up編造
45) common sense常識
46) have sth in common with與有共同之處
47) to ones advantage對某人有利
48) consider sb as/to be考慮做為
49) consider doing sth考慮做某事
50) as time went by隨著時間的推移
51) = with time going by
52) help sb with sth在某方面幫助某人
53) provide sb with sth把某物提供給某人
54) play against對抗
55) spoil ones free time破壞某人的空閑時間
56) mop the floors拖地
400字寫神奇的四年級作文12
1) decrease fromto從減少到
2) decrease to減少到
3) decrease by + %減少了百分之
4) die out滅亡
5) die of/from因而死(內因of，外因from)
6) die away (聲音，風等)逐漸消失，停息
7) die off先后死去
8) in danger (of)在危險中
9) out of danger脫險
10) burst into突然迸發
11) burst out doing突然做某事
12) eg: burst into laughter =burst out laughing
13) protectfrom保護不受(危害)
14) protect sb from doing sth阻止某人做某事
15) protectfrom/against防止
16) stop sb from doing sth阻止某人做某事
17) have an effect on對產生影響
18) have no effect on對沒有影響
19) come into effect開始生效
20) succeed in doing sth成功地做某事
21) out of employ失業
22) employ oneself in忙于，從事
23) do harm to對有害
24) mean no harm沒有惡意
25) according to根據，視而定
26) long before早在之前很久
27) before long不久以后
28) = soon after/shortly after (與將來,過去連用)
29) come into being產生，誕生，成立
30) = come into existence = come into force
31) bringinto being使生產，使形成
32) come into power開始執政，上臺
33) come into effect生效
34) come into fashion開始流行
35) for sure一定要，必須，必然，肯定的
36) be sure of doing sth主自己對做某事有把握
37) be sure to do sth肯定會做某事(以旁觀者)
38) be sure of確信，保證
39) be sure (that)確信(that常省略)
40) be/feel sure about對有把握
41) make sure of確保，確定
42) make sure (that)確實，證實
43) be not sure whether/when/where/what/why
不確定是否/何時/哪里/什么/為何
44) so that結果，以至于，為了
45) sothat如此以至于
46) in peace和平地
47) in relief如釋重負
48) pay attention to注意
49) show mercy to對表示憐憫
50) economic loss經濟損失
51) sell at a loss虧本出售
52) long to do sth渴望做某事
53) endangered species瀕危物種
54) fly away飛走
55) a certain number of一定數量的
56) run after追趕
57) improve the environment改善環境
58) lose ones chance失去機會
59) tens of millions of years ago好幾百萬年前
60) as black as night漆黑一片
61) as bold as a lion勇猛如獅
62) as hard as a stone鐵石心腸
63) as strong as a horse健壯如牛
400字寫神奇的.四年級作文13
倒裝結構的用法：
一、副詞here,there, in, out,up ,down, away,back,now, then, ahead等位于句首,當謂語動詞是be,come, go, follow,run等表示位置移動的動詞，而且主語又是名詞時,需要把謂語動詞放主語之前，即全部倒裝。
注意:A此類倒裝不用進行時態度。B若主語是代詞時，不用倒裝。
二，含有否定意義的詞放句首，部分倒裝。
A具有否定意義的副詞放句首：not,never,seldom,hardly, rarely.little,scarely,few…
B,含有否定意義的連詞放句首:not only…but also.., neither..nor.., no sooner…than.., scarely..than..,Hardly..when.., not until…
_ot only, no sooner,hardly.scarely要倒,but (also), than, when后面的句子不倒. neither..nor..兩部分都倒裝。
C,含有否定意義的介詞放句首：by no means, In no time,in no case, on no account,under no circumstances…
三，only+狀語，部分到裝
四、表示上文的狀況也適合另外一人或事半功倍有下列：
肯定:so+助動詞(動/情態)+主語_語與上文一致
否定:neither(nor)+助動(動/情態)+主語
五、as作“盡管/雖然”，引導讓步狀語從句，由于語法需要，把表語/狀語/動詞提于句首.
六、so ..that.., such ..that..的句子結構中，若so,such和與其所修飾的詞置于句首，實行部分倒。
七、若if引導的`虛擬條件句中有were, had, should時，可將if省，把were, had , should放主語之前。
八、充當地點狀語的介詞短語放句首，全倒。
九、在表示愿望的感嘆句，倒裝。
十、There be句型。
3.語法
詳見Unit4的語法知識
400字寫神奇的四年級作文14
一般過去時
should+ 動詞原形
were+ 不定式 would + 動詞原形
should+ 動詞原形
If you succeeded, everything would be all right.
If you should succeed, everything would be all right.
If you were to succeed, everything would be all right.
混合條件句
主句與從句的動作發生在不同的時間，這時主，從句謂語動詞的虛擬語氣形式因時間不同而不同，這叫做混合條件句。
If you had asked him yesterday, you would know what to do now.
(從句與過去事實相反，主句與現在事實相反。)
If it had rained last night (過去), it would be very cold today (現在).
400字寫神奇的`四年級作文15
1、common
表示"普通的,常見的;共同的;共有的;一般的"。
作名詞，表示"(公有)草地"。
becommonknowledge人所共知。
thecommontouch平易近人的`美德commonground共同的意見,利益,目標等
commonsense常識，情理區別common，ordinary,usual,general,normal
common指因許多事物或許多人所共同具有而常見的意思。
ordinary指由于與一般事物性質和標準相同,因而顯得平常,無奇特之處。
usual"通常的,慣常的",含有"隨集體風俗或個人習慣而常常發生"之意。
normal意為"正常的",強調正常性。
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